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description Publicationkeyboard_double_arrow_right Article , Journal 2014 NetherlandsPublisher:Elsevier BV Funded by:EC | READIEC| READIAuthors:Henri Berestycki;
Laurent Desvillettes;Henri Berestycki
Henri Berestycki in OpenAIREOdo Diekmann;
Odo Diekmann
Odo Diekmann in OpenAIREConsider a situation where spatial heterogeneity leads to a cline, a gradual transition in dominance of two competing species. We first prove, in the context of a simplified competition–diffusion model, that there exists a stationary solution showing that the two species coexist in a transition zone. What happens then if, owing to climate change, the environmental profile moves with constant speed in space? We show here that, when the speed with which the environmental condition shifts exceeds the Fisher invasion speed of the advancing species, an expanding gap will form. We raise the question of whether such a phenomenon has been or can be observed.
Utrecht University R... arrow_drop_down http://dx.doi.org/10.1016/j.ec...Article . Peer-reviewedData sources: European Union Open Data Portaladd 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.ecocom.2014.10.006&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 47 citations 47 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!
more_vert Utrecht University R... arrow_drop_down http://dx.doi.org/10.1016/j.ec...Article . Peer-reviewedData sources: European Union Open Data Portaladd 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.ecocom.2014.10.006&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2015 ItalyPublisher:Elsevier BV Funded by:EC | NASCENTEC| NASCENTAuthors:PERANI, MARTINA;
PERANI, MARTINA
PERANI, MARTINA in OpenAIRECAVALCOLI, DANIELA;
CAVALCOLI, DANIELA
CAVALCOLI, DANIELA in OpenAIREM. Canino;
M. Allegrezza; +2 AuthorsM. Canino
M. Canino in OpenAIREPERANI, MARTINA;
PERANI, MARTINA
PERANI, MARTINA in OpenAIRECAVALCOLI, DANIELA;
CAVALCOLI, DANIELA
CAVALCOLI, DANIELA in OpenAIREM. Canino;
M. Allegrezza; M. Bellettato;M. Canino
M. Canino in OpenAIREC. Summonte;
C. Summonte
C. Summonte in OpenAIREhandle: 20.500.14243/277803 , 11585/387512
Silicon carbide/silicon rich carbide multilayers, aimed at the formation of silicon nanodots for photovoltaic applications, have been studied. The electrical properties have been investigated at the nano-scale by conductive Atomic Force Microscopy (c-AFM) and at macro-scale by temperature dependent conductivity measurements. The mixture is composed of highly conductive Si nanoclusters and moderately conductive SiC nanoclusters in a disordered matrix. The conduction mechanism takes place via band states induced by the disorder at the interface between nanodot clusters. Structural properties have been extracted by optical spectroscopy analyses. The results contribute to the understanding of the microscopical electronic mechanisms of the composite material, which is a candidate for third generation photovoltaics.
CNR ExploRA arrow_drop_down Solar Energy Materials and Solar CellsArticle . 2015 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefadd 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.solmat.2014.09.022&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 11 citations 11 popularity Average influence Average impulse Top 10% Powered by BIP!
more_vert CNR ExploRA arrow_drop_down Solar Energy Materials and Solar CellsArticle . 2015 . Peer-reviewedLicense: Elsevier TDMData sources: Crossrefadd 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.solmat.2014.09.022&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2017 ItalyPublisher:Elsevier BV Funded by:FCT | Core-shell and core-host ..., FCT | Institute of Nanostructur..., FCT | Si QuaDot PVFCT| Core-shell and core-host interactions in functional silicon-nanoparticles ,FCT| Institute of Nanostructures, Nanomodelling and Nanofabrication ,FCT| Si QuaDot PVAuthors: Pia Jensen; M. Bellettato; Bjarke R. Jeppesen;Rui N. Pereira;
+9 AuthorsRui N. Pereira
Rui N. Pereira in OpenAIREPia Jensen; M. Bellettato; Bjarke R. Jeppesen;Rui N. Pereira;
Rui N. Pereira;Rui N. Pereira
Rui N. Pereira in OpenAIREBruno P. Falcão;
Emil H. Eriksen;Bruno P. Falcão
Bruno P. Falcão in OpenAIRECaterina Summonte;
Derese Desta;Caterina Summonte
Caterina Summonte in OpenAIREPeter Balling;
Peter Balling
Peter Balling in OpenAIRESanjay K. Ram;
Sanjay K. Ram
Sanjay K. Ram in OpenAIRERita Rizzoli;
Arne Nylandsted Larsen;Rita Rizzoli
Rita Rizzoli in OpenAIREhandle: 20.500.14243/349504
Self-organizing nanopatterns can enable economically competitive, industrially applicable light-harvesting platforms for thin-film solar cells. In this work, we present transparent solar cell substrates having quasiperiodic uniaxial nanowrinkle patterns with high optical haze values. The self-organized nanowrinkle template is created by controlled heat-shrinking of metal-deposited pre-stretched polystyrene sheets. A scalable UV nanoimprinting method is used to transfer the nanopatterns to glass substrates on which single-junction hydrogenated amorphous silicon p-i-n solar cells are subsequently fabricated. The structural and optical analyses of the solar cell show that the nanowrinkle pattern is replicated throughout the solar cell structure leading to enhanced absorption of light. The efficient broadband light-trapping in the nanowrinkle solar cells results in very high 18.2 mA/cm2 short-circuit current density and 9.5% energy-conversion efficiency, which respectively are 35.8% and 39.7% higher than the values obtained in flat-substrate solar cells. The cost- and time-efficient technique introduces a promising new approach to customizable light-management strategies in thin-film solar cells.
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.nanoen.2017.04.016&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 22 citations 22 popularity Top 10% influence Top 10% impulse Top 10% 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=10.1016/j.nanoen.2017.04.016&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2021Embargo end date: 08 Oct 2021 Italy, United KingdomPublisher:Institute of Electrical and Electronics Engineers (IEEE) Authors:Alexey Bodrov;
Alexey Bodrov
Alexey Bodrov in OpenAIRERoger Shuttleworth;
Roger Shuttleworth
Roger Shuttleworth in OpenAIREMatteo Iacchetti;
Matteo Iacchetti
Matteo Iacchetti in OpenAIREhandle: 11311/1186939
This article presents an active damping matching control strategy to optimize the output power of linear generators in energy harvesting applications. The method adjusts the magnitude of the current command responsible for active power set-point. The proposed approach combines a simple model-based feed-forward term with a slow but accurate correction based on the response of output power to a low-frequency modulation in set-point current magnitude. The correction is derived from the phase of output power oscillations and used to adjust the power set-point to achieve active-load matching conditions. In order to remove the low-frequency oscillations in the power at steady state, the method automatically stops the current amplitude modulation when maximum output power is reached. In addition, the proposed control incorporates an overstroke protection, which increases the active current component thereby reducing the stroke rapidly to a safe limit. The overall control principle is validated experimentally.
RE.PUBLIC@POLIMI Res... arrow_drop_down IEEE Transactions on Industry ApplicationsArticle . 2021 . Peer-reviewedLicense: IEEE CopyrightData sources: CrossrefThe University of Manchester - Institutional RepositoryArticle . 2021Data sources: The University of Manchester - Institutional Repositoryadd 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=10.1109/tia.2021.3088087&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 2 citations 2 popularity Average influence Average impulse Average Powered by BIP!
more_vert RE.PUBLIC@POLIMI Res... arrow_drop_down IEEE Transactions on Industry ApplicationsArticle . 2021 . Peer-reviewedLicense: IEEE CopyrightData sources: CrossrefThe University of Manchester - Institutional RepositoryArticle . 2021Data sources: The University of Manchester - Institutional Repositoryadd 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=10.1109/tia.2021.3088087&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal , Other literature type 2012 NetherlandsPublisher:Wiley Authors: de Jong, M.M.; Sonneveld, P.J.;Baggerman, J.;
Baggerman, J.
Baggerman, J. in OpenAIREvan Rijn, C.J.M.;
+2 Authorsvan Rijn, C.J.M.
van Rijn, C.J.M. in OpenAIREde Jong, M.M.; Sonneveld, P.J.;Baggerman, J.;
Baggerman, J.
Baggerman, J. in OpenAIREvan Rijn, C.J.M.;
Rath, J.K.;van Rijn, C.J.M.
van Rijn, C.J.M. in OpenAIRESchropp, R.E.I.;
Schropp, R.E.I.
Schropp, R.E.I. in OpenAIREdoi: 10.1002/pip.2299
ABSTRACTIn this study, we present a new light absorption enhancement method forp‐i‐nthin film silicon solar cells using pyramidal surface structures, larger than the wavelength of visible light. Calculations show a maximum possible current enhancement of 45% compared with cells on a flat substrate. We deposited amorphous silicon (a‐Si) thin film solar cells directly onto periodically pyramidal‐structured polycarbonate (PC) substrates, which show a significant increase (30%) in short‐circuit current over reference cells deposited on flat glass substrates. The current of the cells on our pyramidal structures on PC is only slightly lower than that of cells on Asahi U‐type TCO glass (Asahi Glass Co., Tokyo, Japan), but suffer from a somewhat lower open circuit voltage and fill factor. Because the used substrates have a locally flat surface area due to the fabrication process, we believe that the current enhancement in the cells on structured PC can be increased using larger or more closely spaced pyramids, which can have a smaller flat surface area. Copyright © 2012 John Wiley & Sons, Ltd.
Utrecht University R... arrow_drop_down Progress in Photovoltaics Research and ApplicationsArticle . 2014Data sources: DANS (Data Archiving and Networked Services)Progress in Photovoltaics Research and ApplicationsArticle . 2012 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: CrossrefProgress in Photovoltaics Research and ApplicationsArticle . 2014Data sources: DANS (Data Archiving and Networked Services)Progress in Photovoltaics Research and ApplicationsArticle . 2014Data sources: Eindhoven University of Technology Research PortalProgress in Photovoltaics Research and ApplicationsArticle . 2012Data sources: Pure Utrecht Universityadd 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=10.1002/pip.2299&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 16 citations 16 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!
more_vert Utrecht University R... arrow_drop_down Progress in Photovoltaics Research and ApplicationsArticle . 2014Data sources: DANS (Data Archiving and Networked Services)Progress in Photovoltaics Research and ApplicationsArticle . 2012 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: CrossrefProgress in Photovoltaics Research and ApplicationsArticle . 2014Data sources: DANS (Data Archiving and Networked Services)Progress in Photovoltaics Research and ApplicationsArticle . 2014Data sources: Eindhoven University of Technology Research PortalProgress in Photovoltaics Research and ApplicationsArticle . 2012Data sources: Pure Utrecht Universityadd 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=10.1002/pip.2299&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu