- home
- Advanced Search
- Energy Research
- Energy Research
description Publicationkeyboard_double_arrow_right Article , Journal 2020 United KingdomPublisher:Elsevier BV Authors: Malina Milanova;Vesselin Donchev;
Vesselin Donchev
Vesselin Donchev in OpenAIREKieran J. Cheetham;
Kieran J. Cheetham
Kieran J. Cheetham in OpenAIREZhongming Cao;
+5 AuthorsZhongming Cao
Zhongming Cao in OpenAIREMalina Milanova;Vesselin Donchev;
Vesselin Donchev
Vesselin Donchev in OpenAIREKieran J. Cheetham;
Kieran J. Cheetham
Kieran J. Cheetham in OpenAIREZhongming Cao;
Zhongming Cao
Zhongming Cao in OpenAIREIan Sandall;
Ian Sandall
Ian Sandall in OpenAIREGiacomo M. Piana;
Giacomo M. Piana
Giacomo M. Piana in OpenAIREOliver S. Hutter;
Oliver S. Hutter
Oliver S. Hutter in OpenAIREKen Durose;
Ken Durose
Ken Durose in OpenAIREAsim Mumtaz;
Asim Mumtaz
Asim Mumtaz in OpenAIREIn this paper, we present single heterojunction p-i-n GaAsSbN/GaAs solar cells grown by low-temperature liquid-phase epitaxy (LPE) – this is of interest as a component of multi-junction solar cell devices. The quaternary absorber layer was characterized by low excitation power photoluminescence to give the temperature dependence of the bandgap. This conformed to the Varshni function at low temperatures to within 10 meV, indicating relatively small alloy potential fluctuations. The absorption properties and the transport of the photogenerated carriers in the heterostructures were investigated using surface photovoltage method. A power conversion efficiency of 4.15% (AM1.5, 1000 W·m−2) was measured for p-i-n GaAsSbN/GaAs solar cells, which is comparable to the efficiency of MOCVD grown devices of this type. This is promising for the first report of LPE grown GaAsSbN/GaAs solar cells since the current record efficiency for the cells based on these compounds grown by MBE stands just at 6%. The long-wavelength photosensitivity of the cells determined from external quantum efficiency and surface photovoltage measurements was shown to be extended to 1040 nm.
e-Prints Soton arrow_drop_down e-Prints SotonArticle . 2020License: CC BY NC NDData sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.solener.2020.08.029&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 10 citations 10 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_vert e-Prints Soton arrow_drop_down e-Prints SotonArticle . 2020License: CC BY NC NDData sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.solener.2020.08.029&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2020 United KingdomPublisher:Elsevier BV Authors: Malina Milanova;Vesselin Donchev;
Vesselin Donchev
Vesselin Donchev in OpenAIREKieran J. Cheetham;
Kieran J. Cheetham
Kieran J. Cheetham in OpenAIREZhongming Cao;
+5 AuthorsZhongming Cao
Zhongming Cao in OpenAIREMalina Milanova;Vesselin Donchev;
Vesselin Donchev
Vesselin Donchev in OpenAIREKieran J. Cheetham;
Kieran J. Cheetham
Kieran J. Cheetham in OpenAIREZhongming Cao;
Zhongming Cao
Zhongming Cao in OpenAIREIan Sandall;
Ian Sandall
Ian Sandall in OpenAIREGiacomo M. Piana;
Giacomo M. Piana
Giacomo M. Piana in OpenAIREOliver S. Hutter;
Oliver S. Hutter
Oliver S. Hutter in OpenAIREKen Durose;
Ken Durose
Ken Durose in OpenAIREAsim Mumtaz;
Asim Mumtaz
Asim Mumtaz in OpenAIREIn this paper, we present single heterojunction p-i-n GaAsSbN/GaAs solar cells grown by low-temperature liquid-phase epitaxy (LPE) – this is of interest as a component of multi-junction solar cell devices. The quaternary absorber layer was characterized by low excitation power photoluminescence to give the temperature dependence of the bandgap. This conformed to the Varshni function at low temperatures to within 10 meV, indicating relatively small alloy potential fluctuations. The absorption properties and the transport of the photogenerated carriers in the heterostructures were investigated using surface photovoltage method. A power conversion efficiency of 4.15% (AM1.5, 1000 W·m−2) was measured for p-i-n GaAsSbN/GaAs solar cells, which is comparable to the efficiency of MOCVD grown devices of this type. This is promising for the first report of LPE grown GaAsSbN/GaAs solar cells since the current record efficiency for the cells based on these compounds grown by MBE stands just at 6%. The long-wavelength photosensitivity of the cells determined from external quantum efficiency and surface photovoltage measurements was shown to be extended to 1040 nm.
e-Prints Soton arrow_drop_down e-Prints SotonArticle . 2020License: CC BY NC NDData sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.solener.2020.08.029&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 10 citations 10 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_vert e-Prints Soton arrow_drop_down e-Prints SotonArticle . 2020License: CC BY NC NDData sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.solener.2020.08.029&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object 2023 FranceAuthors:Regaldo, Davide;
Regaldo, Davide
Regaldo, Davide in OpenAIREConnolly, James P.;
Kirilov, Kiril;Connolly, James P.
Connolly, James P. in OpenAIREDonchev, Vesselin;
+5 AuthorsDonchev, Vesselin
Donchev, Vesselin in OpenAIRERegaldo, Davide;
Regaldo, Davide
Regaldo, Davide in OpenAIREConnolly, James P.;
Kirilov, Kiril;Connolly, James P.
Connolly, James P. in OpenAIREDonchev, Vesselin;
Donchev, Vesselin
Donchev, Vesselin in OpenAIRELongeaud, Christophe;
Puel, Jean-Baptiste;Longeaud, Christophe
Longeaud, Christophe in OpenAIREAlvarez, J;
Alvarez, J
Alvarez, J in OpenAIRESchulz, Philip;
Schulz, Philip
Schulz, Philip in OpenAIREKleider, Jean-Paul;
Kleider, Jean-Paul
Kleider, Jean-Paul in OpenAIREThe modulated surface photovoltage (SPV) experiment in metal-insulator- semiconductor configuration (MIS) uses application of a chopped light beam upon the surface of a sample. The induced variation of the surface potential is recorded by a transparent conductive probe placed on top of the sample. We investigate the impact of the light modulation frequency on the response of untreated p-type silicon, used as a model system. Due to the absence of buried heterojunctions in the sample, we assume that the SPV response originates at the Si surface due to the presence of a defect-induced space charge region (SCR). Experimentally, we observe an increase of the phase shift of SPV with respect to the incoming beam, and a reduction in the SPV amplitude, when we increase the modulation frequency from 29 to 494 Hz. This trend is qualitatively explained by the timescale of charge carrier trapping and detrapping at the surface of the sample. We have employed drift-diffusion simulations to quantitatively evaluate the impact of key surface defects’ properties, and to show the power of frequency modulation in the MIS- SPV technique. Following the Shockley–Read-Hall non-radiative recombination mechanism [1,2], parameters such as defect density and carrier capture cross sections have been evaluated. From our preliminary results, a large asymmetry in the role of the electron and hole capture cross sections arise. This can be ascribed to the doping nature of the semiconductor. Under illumination, photogenerated electrons are driven towards the surface, where they subsequently trap, with a speed which depends on the electron capture cross section. During the dark semi-period, these electrons are released by recombining with holes in the valence band, a process which mainly depends on the hole capture cross section. On the one hand, dynamics under light are impacted by the large photogenerated carrier density, which increases the electron trapping rate on the surface. On the other hand, during the dark semi-period, the hole density at the surface quickly decreases. This translates into a much higher impact on the SPV phase shift of the hole capture cross section, with respect to the electron one.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______2417::b6bd7fbb15e4862e56ee2917f30d5570&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______2417::b6bd7fbb15e4862e56ee2917f30d5570&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object 2023 FranceAuthors:Regaldo, Davide;
Regaldo, Davide
Regaldo, Davide in OpenAIREConnolly, James P.;
Kirilov, Kiril;Connolly, James P.
Connolly, James P. in OpenAIREDonchev, Vesselin;
+5 AuthorsDonchev, Vesselin
Donchev, Vesselin in OpenAIRERegaldo, Davide;
Regaldo, Davide
Regaldo, Davide in OpenAIREConnolly, James P.;
Kirilov, Kiril;Connolly, James P.
Connolly, James P. in OpenAIREDonchev, Vesselin;
Donchev, Vesselin
Donchev, Vesselin in OpenAIRELongeaud, Christophe;
Puel, Jean-Baptiste;Longeaud, Christophe
Longeaud, Christophe in OpenAIREAlvarez, J;
Alvarez, J
Alvarez, J in OpenAIRESchulz, Philip;
Schulz, Philip
Schulz, Philip in OpenAIREKleider, Jean-Paul;
Kleider, Jean-Paul
Kleider, Jean-Paul in OpenAIREThe modulated surface photovoltage (SPV) experiment in metal-insulator- semiconductor configuration (MIS) uses application of a chopped light beam upon the surface of a sample. The induced variation of the surface potential is recorded by a transparent conductive probe placed on top of the sample. We investigate the impact of the light modulation frequency on the response of untreated p-type silicon, used as a model system. Due to the absence of buried heterojunctions in the sample, we assume that the SPV response originates at the Si surface due to the presence of a defect-induced space charge region (SCR). Experimentally, we observe an increase of the phase shift of SPV with respect to the incoming beam, and a reduction in the SPV amplitude, when we increase the modulation frequency from 29 to 494 Hz. This trend is qualitatively explained by the timescale of charge carrier trapping and detrapping at the surface of the sample. We have employed drift-diffusion simulations to quantitatively evaluate the impact of key surface defects’ properties, and to show the power of frequency modulation in the MIS- SPV technique. Following the Shockley–Read-Hall non-radiative recombination mechanism [1,2], parameters such as defect density and carrier capture cross sections have been evaluated. From our preliminary results, a large asymmetry in the role of the electron and hole capture cross sections arise. This can be ascribed to the doping nature of the semiconductor. Under illumination, photogenerated electrons are driven towards the surface, where they subsequently trap, with a speed which depends on the electron capture cross section. During the dark semi-period, these electrons are released by recombining with holes in the valence band, a process which mainly depends on the hole capture cross section. On the one hand, dynamics under light are impacted by the large photogenerated carrier density, which increases the electron trapping rate on the surface. On the other hand, during the dark semi-period, the hole density at the surface quickly decreases. This translates into a much higher impact on the SPV phase shift of the hole capture cross section, with respect to the electron one.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______2417::b6bd7fbb15e4862e56ee2917f30d5570&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______2417::b6bd7fbb15e4862e56ee2917f30d5570&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2018 Serbia, Portugal, Lithuania, France, United Kingdom, United Kingdom, France, France, France, Spain, Spain, United Kingdom, Serbia, Serbia, United Kingdom, Italy, Netherlands, Spain, Finland, United Kingdom, Netherlands, Denmark, NetherlandsPublisher:EDP Sciences Publicly fundedAuthors: V. Kazukauskas;Jelena Radovanović;
Konstantinos Petridis; Clas Persson; +79 AuthorsJelena Radovanović
Jelena Radovanović in OpenAIREV. Kazukauskas;Jelena Radovanović;
Konstantinos Petridis; Clas Persson; Lejo k. Joseph; Nicholas J. Ekins-Daukes;Jelena Radovanović
Jelena Radovanović in OpenAIREZoran Jakšić;
Zoran Jakšić
Zoran Jakšić in OpenAIREUllrich Steiner;
Shengda Wang;Ullrich Steiner
Ullrich Steiner in OpenAIREJanne Halme;
Janne Halme
Janne Halme in OpenAIRELucjan Jacak;
Nikola Bednar; Ákos Nemcsics;Lucjan Jacak
Lucjan Jacak in OpenAIREMimoza Ristova;
Ahmed Neijm;Mimoza Ristova
Mimoza Ristova in OpenAIRENeil Beattie;
Neil Beattie
Neil Beattie in OpenAIREJosé Silva;
José Silva;José Silva
José Silva in OpenAIREAlessio Gagliardi;
Alessio Gagliardi
Alessio Gagliardi in OpenAIREIvana Savic;
Ivana Savic
Ivana Savic in OpenAIREFelipe Murphy Armando;
Rasit Turan; Spyridon Kassavetis;Felipe Murphy Armando
Felipe Murphy Armando in OpenAIREStanko Tomić;
Zoe Amin-Akhlaghi; Androula G. Nassiopoulou; Urša Opara Krašovec;Stanko Tomić
Stanko Tomić in OpenAIREAbdurrahman Şengül;
Pavel Tománek;Abdurrahman Şengül
Abdurrahman Şengül in OpenAIREMatthias Auf der Maur;
Matthias Auf der Maur
Matthias Auf der Maur in OpenAIREIvana Capan;
Ivana Capan
Ivana Capan in OpenAIREMartin Loncaric;
Martin Loncaric
Martin Loncaric in OpenAIRESøren Madsen;
Søren Madsen
Søren Madsen in OpenAIREDiego Alonso-Álvarez;
Diego Alonso-Álvarez
Diego Alonso-Álvarez in OpenAIREShuxia Tao;
Shuxia Tao
Shuxia Tao in OpenAIREChristin David;
Fatma Yuksel; Tareq Abu Hamed;Christin David
Christin David in OpenAIREStefan Birner;
Efrat Lifshitz;Stefan Birner
Stefan Birner in OpenAIREGeorg Pucker;
Mateja Hočevar;Georg Pucker
Georg Pucker in OpenAIREWitold Jacak;
N. Adamovic; M. Sendova-Vassileva;Witold Jacak
Witold Jacak in OpenAIREJaroslav Zadny;
Jaroslav Zadny
Jaroslav Zadny in OpenAIREJose G. F. Coutinho;
Marija Drev; Frederic Cortes Juan; Denis Mencaraglia; Marco Califano; JM José Maria Ulloa;Jose G. F. Coutinho
Jose G. F. Coutinho in OpenAIREJan Storch;
Jan Storch
Jan Storch in OpenAIREV. Donchev;
V. Donchev
V. Donchev in OpenAIREJames P. Connolly;
Antti Tukiainen; Victor Neto;James P. Connolly
James P. Connolly in OpenAIREJean-François Guillemoles;
Boukje Ehlen;Jean-François Guillemoles
Jean-François Guillemoles in OpenAIREMircea Guina;
Mircea Guina
Mircea Guina in OpenAIREMaria E. Messing;
Bostjan Cerne; J. C. Rimada;Maria E. Messing
Maria E. Messing in OpenAIREKnut Deppert;
Knut Deppert
Knut Deppert in OpenAIREJacky Even;
Jacky Even
Jacky Even in OpenAIRELaurent Pedesseau;
Laurent Pedesseau
Laurent Pedesseau in OpenAIREKristian Berland;
Kristian Berland
Kristian Berland in OpenAIREM. J. M. Gomes;
M. J. M. Gomes
M. J. M. Gomes in OpenAIREHele Savin;
Javad Zarbakhsh;Hele Savin
Hele Savin in OpenAIREJean-Louis Lazzari;
Jean-Louis Lazzari
Jean-Louis Lazzari in OpenAIREDavid Fuertes Marrón;
Radovan Kopecek;David Fuertes Marrón
David Fuertes Marrón in OpenAIREKatarzyna Kluczyk;
Katarzyna Kluczyk
Katarzyna Kluczyk in OpenAIREJean-Paul Kleider;
Laurentiu Fara; Antonio Martí Vega; Blas Garrido;Jean-Paul Kleider
Jean-Paul Kleider in OpenAIREIrinela Chilibon;
Lacramioara Popescu; Urs Aeberhard;Irinela Chilibon
Irinela Chilibon in OpenAIREEmmanuel Stratakis;
Violetta Gianneta;Emmanuel Stratakis
Emmanuel Stratakis in OpenAIREhandle: 20.500.12614/1645 , 2108/206746 , 1822/57392 , 10044/1/69765
Photovoltaics is amongst the most important technologies for renewable energy sources, and plays a key role in the development of a society with a smaller environmental footprint. Key parameters for solar cells are their energy conversion efficiency, their operating lifetime, and the cost of the energy obtained from a photovoltaic system compared to other sources. The optimization of these aspects involves the exploitation of new materials and development of novel solar cell concepts and designs. Both theoretical modeling and characterization of such devices require a comprehensive view including all scales from the atomic to the macroscopic and industrial scale. The different length scales of the electronic and optical degrees of freedoms specifically lead to an intrinsic need for multiscale simulation, which is accentuated in many advanced photovoltaics concepts including nanostructured regions. Therefore, multiscale modeling has found particular interest in the photovoltaics community, as a tool to advance the field beyond its current limits. In this article, we review the field of multiscale techniques applied to photovoltaics, and we discuss opportunities and remaining challenges.
CORE arrow_drop_down Archivio della Ricerca - Università di Roma Tor vergataArticle . 2018License: CC BYFull-Text: https://art.torvergata.it/bitstream/2108/206746/1/2018-EPJPhotovolt_9_MultiscaleSolar.pdfData sources: Archivio della Ricerca - Università di Roma Tor vergataVilnius University Institutional RepositoryArticle . 2018Data sources: Vilnius University Institutional RepositoryArchivio della Ricerca - Università di Roma Tor vergataArticle . 2018Full-Text: http://hdl.handle.net/2108/206746Data sources: Bielefeld Academic Search Engine (BASE)Imperial College London: SpiralArticle . 2018License: CC BYFull-Text: http://hdl.handle.net/10044/1/69765Data sources: Bielefeld Academic Search Engine (BASE)Recolector de Ciencia Abierta, RECOLECTAArticle . 2018 . Peer-reviewedLicense: CC BY NC NDData sources: Recolector de Ciencia Abierta, RECOLECTARecolector de Ciencia Abierta, RECOLECTAArticle . 2018License: CC BY NC NDData sources: Recolector de Ciencia Abierta, RECOLECTAInstitutional Repository of IMDEA NanocienciaArticle . 2018License: CC BY NC NDData sources: Institutional Repository of IMDEA NanocienciaSpiral - Imperial College Digital RepositoryArticle . 2018Data sources: Spiral - Imperial College Digital RepositoryUniversidade do Minho: RepositoriUMOther literature type . 2018Data sources: Universidade do Minho: RepositoriUMAaltodoc Publication ArchiveArticle . 2018 . Peer-reviewedData sources: Aaltodoc Publication ArchiveÉcole Polytechnique, Université Paris-Saclay: HALArticle . 2018Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1051/epjpv/2018008&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 6 citations 6 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
visibility 79visibility views 79 download downloads 72 Powered bymore_vert CORE arrow_drop_down Archivio della Ricerca - Università di Roma Tor vergataArticle . 2018License: CC BYFull-Text: https://art.torvergata.it/bitstream/2108/206746/1/2018-EPJPhotovolt_9_MultiscaleSolar.pdfData sources: Archivio della Ricerca - Università di Roma Tor vergataVilnius University Institutional RepositoryArticle . 2018Data sources: Vilnius University Institutional RepositoryArchivio della Ricerca - Università di Roma Tor vergataArticle . 2018Full-Text: http://hdl.handle.net/2108/206746Data sources: Bielefeld Academic Search Engine (BASE)Imperial College London: SpiralArticle . 2018License: CC BYFull-Text: http://hdl.handle.net/10044/1/69765Data sources: Bielefeld Academic Search Engine (BASE)Recolector de Ciencia Abierta, RECOLECTAArticle . 2018 . Peer-reviewedLicense: CC BY NC NDData sources: Recolector de Ciencia Abierta, RECOLECTARecolector de Ciencia Abierta, RECOLECTAArticle . 2018License: CC BY NC NDData sources: Recolector de Ciencia Abierta, RECOLECTAInstitutional Repository of IMDEA NanocienciaArticle . 2018License: CC BY NC NDData sources: Institutional Repository of IMDEA NanocienciaSpiral - Imperial College Digital RepositoryArticle . 2018Data sources: Spiral - Imperial College Digital RepositoryUniversidade do Minho: RepositoriUMOther literature type . 2018Data sources: Universidade do Minho: RepositoriUMAaltodoc Publication ArchiveArticle . 2018 . Peer-reviewedData sources: Aaltodoc Publication ArchiveÉcole Polytechnique, Université Paris-Saclay: HALArticle . 2018Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1051/epjpv/2018008&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2018 Serbia, Portugal, Lithuania, France, United Kingdom, United Kingdom, France, France, France, Spain, Spain, United Kingdom, Serbia, Serbia, United Kingdom, Italy, Netherlands, Spain, Finland, United Kingdom, Netherlands, Denmark, NetherlandsPublisher:EDP Sciences Publicly fundedAuthors: V. Kazukauskas;Jelena Radovanović;
Konstantinos Petridis; Clas Persson; +79 AuthorsJelena Radovanović
Jelena Radovanović in OpenAIREV. Kazukauskas;Jelena Radovanović;
Konstantinos Petridis; Clas Persson; Lejo k. Joseph; Nicholas J. Ekins-Daukes;Jelena Radovanović
Jelena Radovanović in OpenAIREZoran Jakšić;
Zoran Jakšić
Zoran Jakšić in OpenAIREUllrich Steiner;
Shengda Wang;Ullrich Steiner
Ullrich Steiner in OpenAIREJanne Halme;
Janne Halme
Janne Halme in OpenAIRELucjan Jacak;
Nikola Bednar; Ákos Nemcsics;Lucjan Jacak
Lucjan Jacak in OpenAIREMimoza Ristova;
Ahmed Neijm;Mimoza Ristova
Mimoza Ristova in OpenAIRENeil Beattie;
Neil Beattie
Neil Beattie in OpenAIREJosé Silva;
José Silva;José Silva
José Silva in OpenAIREAlessio Gagliardi;
Alessio Gagliardi
Alessio Gagliardi in OpenAIREIvana Savic;
Ivana Savic
Ivana Savic in OpenAIREFelipe Murphy Armando;
Rasit Turan; Spyridon Kassavetis;Felipe Murphy Armando
Felipe Murphy Armando in OpenAIREStanko Tomić;
Zoe Amin-Akhlaghi; Androula G. Nassiopoulou; Urša Opara Krašovec;Stanko Tomić
Stanko Tomić in OpenAIREAbdurrahman Şengül;
Pavel Tománek;Abdurrahman Şengül
Abdurrahman Şengül in OpenAIREMatthias Auf der Maur;
Matthias Auf der Maur
Matthias Auf der Maur in OpenAIREIvana Capan;
Ivana Capan
Ivana Capan in OpenAIREMartin Loncaric;
Martin Loncaric
Martin Loncaric in OpenAIRESøren Madsen;
Søren Madsen
Søren Madsen in OpenAIREDiego Alonso-Álvarez;
Diego Alonso-Álvarez
Diego Alonso-Álvarez in OpenAIREShuxia Tao;
Shuxia Tao
Shuxia Tao in OpenAIREChristin David;
Fatma Yuksel; Tareq Abu Hamed;Christin David
Christin David in OpenAIREStefan Birner;
Efrat Lifshitz;Stefan Birner
Stefan Birner in OpenAIREGeorg Pucker;
Mateja Hočevar;Georg Pucker
Georg Pucker in OpenAIREWitold Jacak;
N. Adamovic; M. Sendova-Vassileva;Witold Jacak
Witold Jacak in OpenAIREJaroslav Zadny;
Jaroslav Zadny
Jaroslav Zadny in OpenAIREJose G. F. Coutinho;
Marija Drev; Frederic Cortes Juan; Denis Mencaraglia; Marco Califano; JM José Maria Ulloa;Jose G. F. Coutinho
Jose G. F. Coutinho in OpenAIREJan Storch;
Jan Storch
Jan Storch in OpenAIREV. Donchev;
V. Donchev
V. Donchev in OpenAIREJames P. Connolly;
Antti Tukiainen; Victor Neto;James P. Connolly
James P. Connolly in OpenAIREJean-François Guillemoles;
Boukje Ehlen;Jean-François Guillemoles
Jean-François Guillemoles in OpenAIREMircea Guina;
Mircea Guina
Mircea Guina in OpenAIREMaria E. Messing;
Bostjan Cerne; J. C. Rimada;Maria E. Messing
Maria E. Messing in OpenAIREKnut Deppert;
Knut Deppert
Knut Deppert in OpenAIREJacky Even;
Jacky Even
Jacky Even in OpenAIRELaurent Pedesseau;
Laurent Pedesseau
Laurent Pedesseau in OpenAIREKristian Berland;
Kristian Berland
Kristian Berland in OpenAIREM. J. M. Gomes;
M. J. M. Gomes
M. J. M. Gomes in OpenAIREHele Savin;
Javad Zarbakhsh;Hele Savin
Hele Savin in OpenAIREJean-Louis Lazzari;
Jean-Louis Lazzari
Jean-Louis Lazzari in OpenAIREDavid Fuertes Marrón;
Radovan Kopecek;David Fuertes Marrón
David Fuertes Marrón in OpenAIREKatarzyna Kluczyk;
Katarzyna Kluczyk
Katarzyna Kluczyk in OpenAIREJean-Paul Kleider;
Laurentiu Fara; Antonio Martí Vega; Blas Garrido;Jean-Paul Kleider
Jean-Paul Kleider in OpenAIREIrinela Chilibon;
Lacramioara Popescu; Urs Aeberhard;Irinela Chilibon
Irinela Chilibon in OpenAIREEmmanuel Stratakis;
Violetta Gianneta;Emmanuel Stratakis
Emmanuel Stratakis in OpenAIREhandle: 20.500.12614/1645 , 2108/206746 , 1822/57392 , 10044/1/69765
Photovoltaics is amongst the most important technologies for renewable energy sources, and plays a key role in the development of a society with a smaller environmental footprint. Key parameters for solar cells are their energy conversion efficiency, their operating lifetime, and the cost of the energy obtained from a photovoltaic system compared to other sources. The optimization of these aspects involves the exploitation of new materials and development of novel solar cell concepts and designs. Both theoretical modeling and characterization of such devices require a comprehensive view including all scales from the atomic to the macroscopic and industrial scale. The different length scales of the electronic and optical degrees of freedoms specifically lead to an intrinsic need for multiscale simulation, which is accentuated in many advanced photovoltaics concepts including nanostructured regions. Therefore, multiscale modeling has found particular interest in the photovoltaics community, as a tool to advance the field beyond its current limits. In this article, we review the field of multiscale techniques applied to photovoltaics, and we discuss opportunities and remaining challenges.
CORE arrow_drop_down Archivio della Ricerca - Università di Roma Tor vergataArticle . 2018License: CC BYFull-Text: https://art.torvergata.it/bitstream/2108/206746/1/2018-EPJPhotovolt_9_MultiscaleSolar.pdfData sources: Archivio della Ricerca - Università di Roma Tor vergataVilnius University Institutional RepositoryArticle . 2018Data sources: Vilnius University Institutional RepositoryArchivio della Ricerca - Università di Roma Tor vergataArticle . 2018Full-Text: http://hdl.handle.net/2108/206746Data sources: Bielefeld Academic Search Engine (BASE)Imperial College London: SpiralArticle . 2018License: CC BYFull-Text: http://hdl.handle.net/10044/1/69765Data sources: Bielefeld Academic Search Engine (BASE)Recolector de Ciencia Abierta, RECOLECTAArticle . 2018 . Peer-reviewedLicense: CC BY NC NDData sources: Recolector de Ciencia Abierta, RECOLECTARecolector de Ciencia Abierta, RECOLECTAArticle . 2018License: CC BY NC NDData sources: Recolector de Ciencia Abierta, RECOLECTAInstitutional Repository of IMDEA NanocienciaArticle . 2018License: CC BY NC NDData sources: Institutional Repository of IMDEA NanocienciaSpiral - Imperial College Digital RepositoryArticle . 2018Data sources: Spiral - Imperial College Digital RepositoryUniversidade do Minho: RepositoriUMOther literature type . 2018Data sources: Universidade do Minho: RepositoriUMAaltodoc Publication ArchiveArticle . 2018 . Peer-reviewedData sources: Aaltodoc Publication ArchiveÉcole Polytechnique, Université Paris-Saclay: HALArticle . 2018Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1051/epjpv/2018008&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 6 citations 6 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
visibility 79visibility views 79 download downloads 72 Powered bymore_vert CORE arrow_drop_down Archivio della Ricerca - Università di Roma Tor vergataArticle . 2018License: CC BYFull-Text: https://art.torvergata.it/bitstream/2108/206746/1/2018-EPJPhotovolt_9_MultiscaleSolar.pdfData sources: Archivio della Ricerca - Università di Roma Tor vergataVilnius University Institutional RepositoryArticle . 2018Data sources: Vilnius University Institutional RepositoryArchivio della Ricerca - Università di Roma Tor vergataArticle . 2018Full-Text: http://hdl.handle.net/2108/206746Data sources: Bielefeld Academic Search Engine (BASE)Imperial College London: SpiralArticle . 2018License: CC BYFull-Text: http://hdl.handle.net/10044/1/69765Data sources: Bielefeld Academic Search Engine (BASE)Recolector de Ciencia Abierta, RECOLECTAArticle . 2018 . Peer-reviewedLicense: CC BY NC NDData sources: Recolector de Ciencia Abierta, RECOLECTARecolector de Ciencia Abierta, RECOLECTAArticle . 2018License: CC BY NC NDData sources: Recolector de Ciencia Abierta, RECOLECTAInstitutional Repository of IMDEA NanocienciaArticle . 2018License: CC BY NC NDData sources: Institutional Repository of IMDEA NanocienciaSpiral - Imperial College Digital RepositoryArticle . 2018Data sources: Spiral - Imperial College Digital RepositoryUniversidade do Minho: RepositoriUMOther literature type . 2018Data sources: Universidade do Minho: RepositoriUMAaltodoc Publication ArchiveArticle . 2018 . Peer-reviewedData sources: Aaltodoc Publication ArchiveÉcole Polytechnique, Université Paris-Saclay: HALArticle . 2018Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1051/epjpv/2018008&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2022 France, FrancePublisher:EDP Sciences Funded by:ANR | InHyMat-PVANR| InHyMat-PVAuthors:Bojar, Aleksandra;
Bojar, Aleksandra
Bojar, Aleksandra in OpenAIRERegaldo, Davide;
Regaldo, Davide
Regaldo, Davide in OpenAIREAlvarez, J;
Alvarez, J
Alvarez, J in OpenAIREAlamarguy, David;
+4 AuthorsAlamarguy, David
Alamarguy, David in OpenAIREBojar, Aleksandra;
Bojar, Aleksandra
Bojar, Aleksandra in OpenAIRERegaldo, Davide;
Regaldo, Davide
Regaldo, Davide in OpenAIREAlvarez, J;
Alvarez, J
Alvarez, J in OpenAIREAlamarguy, David;
Alamarguy, David
Alamarguy, David in OpenAIREDonchev, Vesselin;
Donchev, Vesselin
Donchev, Vesselin in OpenAIREGeorgiev, Stefan;
Schulz, Philip;Georgiev, Stefan
Georgiev, Stefan in OpenAIREKleider, Jean Paul;
Kleider, Jean Paul
Kleider, Jean Paul in OpenAIREIn this study we analysed halide perovskite films deposited directly on crystalline silicon by means of two set-ups using different operating modes of the surface photovoltage (SPV) methods, i.e., the Kelvin probe force microscopy (KPFM) and the metal-insulator-semiconductor (MIS) technique. The KPFM allowed to visualize surface potential distribution on a microscale while MIS technique allowed to study SPV spectral dependence. We studied wavelength dependent SPV of these samples, which allowed us to effectively vary the probe depth in the sample and discern the contribution from each interface to the overall effect measured under white light illumination. Depending on where the photocarriers are generated, different SPV signals are observed: at the perovskite/Si interface, the signal depends on Si doping type, while at the surface the SPV is always negative indicating downward surface band bending. This is confirmed by analysing SPV phase measured in the AC MIS mode. In addition, distinction between slow and fast processes contributing to measured SPV was possible. It has been observed, that with decreasing the illumination wavelength, the processes causing SPV become slower, which can indicate that high energy photons not only generate electronic photocarriers but can also induce chemical changes with creation of defects or ionic species that also modify the measured SPV.
École Polytechnique,... arrow_drop_down École Polytechnique, Université Paris-Saclay: HALArticle . 2022Full-Text: https://hal.science/hal-03749484Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1051/epjpv/2022016&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 3 citations 3 popularity Top 10% influence Average impulse Average Powered by BIP!
more_vert École Polytechnique,... arrow_drop_down École Polytechnique, Université Paris-Saclay: HALArticle . 2022Full-Text: https://hal.science/hal-03749484Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1051/epjpv/2022016&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2022 France, FrancePublisher:EDP Sciences Funded by:ANR | InHyMat-PVANR| InHyMat-PVAuthors:Bojar, Aleksandra;
Bojar, Aleksandra
Bojar, Aleksandra in OpenAIRERegaldo, Davide;
Regaldo, Davide
Regaldo, Davide in OpenAIREAlvarez, J;
Alvarez, J
Alvarez, J in OpenAIREAlamarguy, David;
+4 AuthorsAlamarguy, David
Alamarguy, David in OpenAIREBojar, Aleksandra;
Bojar, Aleksandra
Bojar, Aleksandra in OpenAIRERegaldo, Davide;
Regaldo, Davide
Regaldo, Davide in OpenAIREAlvarez, J;
Alvarez, J
Alvarez, J in OpenAIREAlamarguy, David;
Alamarguy, David
Alamarguy, David in OpenAIREDonchev, Vesselin;
Donchev, Vesselin
Donchev, Vesselin in OpenAIREGeorgiev, Stefan;
Schulz, Philip;Georgiev, Stefan
Georgiev, Stefan in OpenAIREKleider, Jean Paul;
Kleider, Jean Paul
Kleider, Jean Paul in OpenAIREIn this study we analysed halide perovskite films deposited directly on crystalline silicon by means of two set-ups using different operating modes of the surface photovoltage (SPV) methods, i.e., the Kelvin probe force microscopy (KPFM) and the metal-insulator-semiconductor (MIS) technique. The KPFM allowed to visualize surface potential distribution on a microscale while MIS technique allowed to study SPV spectral dependence. We studied wavelength dependent SPV of these samples, which allowed us to effectively vary the probe depth in the sample and discern the contribution from each interface to the overall effect measured under white light illumination. Depending on where the photocarriers are generated, different SPV signals are observed: at the perovskite/Si interface, the signal depends on Si doping type, while at the surface the SPV is always negative indicating downward surface band bending. This is confirmed by analysing SPV phase measured in the AC MIS mode. In addition, distinction between slow and fast processes contributing to measured SPV was possible. It has been observed, that with decreasing the illumination wavelength, the processes causing SPV become slower, which can indicate that high energy photons not only generate electronic photocarriers but can also induce chemical changes with creation of defects or ionic species that also modify the measured SPV.
École Polytechnique,... arrow_drop_down École Polytechnique, Université Paris-Saclay: HALArticle . 2022Full-Text: https://hal.science/hal-03749484Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1051/epjpv/2022016&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 3 citations 3 popularity Top 10% influence Average impulse Average Powered by BIP!
more_vert École Polytechnique,... arrow_drop_down École Polytechnique, Université Paris-Saclay: HALArticle . 2022Full-Text: https://hal.science/hal-03749484Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1051/epjpv/2022016&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2022 BulgariaPublisher:MDPI AG Authors:Vesselin Donchev;
Malina Milanova;Vesselin Donchev
Vesselin Donchev in OpenAIREStefan Georgiev;
Stefan Georgiev
Stefan Georgiev in OpenAIREdoi: 10.3390/en15186563
handle: 20.500.12641/65330
The properties of GaAsSbN and GaAsSb layers grown by liquid-phase epitaxy on n-GaAs substrates were investigated in a comparative plan with a view of their possible application in multi-junction solar cells. To avoid non-uniformity effects in the composition of these compounds with two or three different group-V volatile elements, the crystallization was carried out from finite melt with a thickness of 0.5 mm at low (<560 °C) temperatures. X-ray microanalysis and X-ray diffraction were used to determine the composition, lattice mismatch, and crystalline quality of the epitaxial layers. The morphology and surface roughness were examined by atomic force microscopy. Surface photovoltage (SPV) spectroscopy at room temperature was applied to study the optical absorption properties and the photocarrier transport in the samples. The long-wavelength photosensitivity of the GaAsSbN and GaAsSb layers, determined from their SPV spectra, is extended down to 1.2 eV. Although GaAsSb has a slightly larger lattice mismatch with the GaAs substrate compared to GaAsSbN, it presents a higher photoresponse, since, in GaAsSbN, the incorporation of N induces additional recombination centres. Therefore, GaAsSb could be an alternative to GaAsSbN for solar cell applications.
Energies arrow_drop_down EnergiesOther literature type . 2022License: CC BYFull-Text: http://www.mdpi.com/1996-1073/15/18/6563/pdfData sources: Multidisciplinary Digital Publishing Instituteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/en15186563&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
more_vert Energies arrow_drop_down EnergiesOther literature type . 2022License: CC BYFull-Text: http://www.mdpi.com/1996-1073/15/18/6563/pdfData sources: Multidisciplinary Digital Publishing Instituteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/en15186563&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2022 BulgariaPublisher:MDPI AG Authors:Vesselin Donchev;
Malina Milanova;Vesselin Donchev
Vesselin Donchev in OpenAIREStefan Georgiev;
Stefan Georgiev
Stefan Georgiev in OpenAIREdoi: 10.3390/en15186563
handle: 20.500.12641/65330
The properties of GaAsSbN and GaAsSb layers grown by liquid-phase epitaxy on n-GaAs substrates were investigated in a comparative plan with a view of their possible application in multi-junction solar cells. To avoid non-uniformity effects in the composition of these compounds with two or three different group-V volatile elements, the crystallization was carried out from finite melt with a thickness of 0.5 mm at low (<560 °C) temperatures. X-ray microanalysis and X-ray diffraction were used to determine the composition, lattice mismatch, and crystalline quality of the epitaxial layers. The morphology and surface roughness were examined by atomic force microscopy. Surface photovoltage (SPV) spectroscopy at room temperature was applied to study the optical absorption properties and the photocarrier transport in the samples. The long-wavelength photosensitivity of the GaAsSbN and GaAsSb layers, determined from their SPV spectra, is extended down to 1.2 eV. Although GaAsSb has a slightly larger lattice mismatch with the GaAs substrate compared to GaAsSbN, it presents a higher photoresponse, since, in GaAsSbN, the incorporation of N induces additional recombination centres. Therefore, GaAsSb could be an alternative to GaAsSbN for solar cell applications.
Energies arrow_drop_down EnergiesOther literature type . 2022License: CC BYFull-Text: http://www.mdpi.com/1996-1073/15/18/6563/pdfData sources: Multidisciplinary Digital Publishing Instituteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/en15186563&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
more_vert Energies arrow_drop_down EnergiesOther literature type . 2022License: CC BYFull-Text: http://www.mdpi.com/1996-1073/15/18/6563/pdfData sources: Multidisciplinary Digital Publishing Instituteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/en15186563&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu