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description Publicationkeyboard_double_arrow_right Article , Journal 2019 Saudi ArabiaPublisher:Wiley Jafar I. Khan; Arif D. Sheikh; Maha A. Alamoudi; Dounya Barrit; Esma Ugur; Frédéric Laquai; Aram Amassian;handle: 10754/660539
The role of residual lead iodide on the photophysical properties of methylammonium lead iodide is still unclear and contradictory views exist about its impact. Herein, it is reported that there is a critical amount of residual lead iodide, which is beneficial for the solar cell performance. Transient absorption spectroscopy is used to investigate the charge carrier recombination dynamics in perovskite solar cells and to address the role of different amounts of residual lead iodide. The amount of lead iodide is varied through the perovskite thin film preparation protocol upon a modified two‐step fabrication process. Slower carrier dynamics are observed at the perovskite/titanium dioxide interface in the presence of residual lead iodide when exciting the perovskite at the perovskite/titanium interface, which correlates with improved solar cell device performance. Excitation from the perovskite side indicates that the effect of residual lead iodide is primarily at the titanium dioxide interface. Increasing the lead iodide content does not further alter the carrier recombination; on the contrary, it results in lower device performance. This study confirms that the presence of lead iodide can have a beneficial effect, as it reduces charge carrier recombination at the perovskite/titanium dioxide interface.
Energy Technology arrow_drop_down Energy TechnologyArticle . 2019 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: CrossrefKing Abdullah University of Science and Technology: KAUST RepositoryArticle . 2019Data 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=10.1002/ente.201900627&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 11 citations 11 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_vert Energy Technology arrow_drop_down Energy TechnologyArticle . 2019 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: CrossrefKing Abdullah University of Science and Technology: KAUST RepositoryArticle . 2019Data 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=10.1002/ente.201900627&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Conference object , Other literature type , Journal 2016 United Kingdom, Saudi Arabia, Saudi ArabiaPublisher:Springer Science and Business Media LLC Funded by:EC | ARTESUN, EC | POLYMED, EC | SC2 +3 projectsEC| ARTESUN ,EC| POLYMED ,EC| SC2 ,DFG| Synthetic Carbon Allotropes ,UKRI| Doctoral Training Centre in Science and Application of Plastic Electronic Materials ,UKRI| [Newton] Advancing the efficiency and production potential of excitonic solar cells (APEX), Phase- IIZhengrong Shang; Sarah Holliday; Stoichko D. Dimitrov; Andrew Wadsworth; Iain McCulloch; Iain McCulloch; Raja Shahid Ashraf; Christoph J. Brabec; Alberto Salleo; Maha A. Alamoudi; James R. Durrant; Syeda Amber Yousaf; Christian B. Nielsen; Nicola Gasparini; Frédéric Laquai; Ching-Hong Tan; Derya Baran;AbstractSolution-processed organic photovoltaics (OPV) offer the attractive prospect of low-cost, light-weight and environmentally benign solar energy production. The highest efficiency OPV at present use low-bandgap donor polymers, many of which suffer from problems with stability and synthetic scalability. They also rely on fullerene-based acceptors, which themselves have issues with cost, stability and limited spectral absorption. Here we present a new non-fullerene acceptor that has been specifically designed to give improved performance alongside the wide bandgap donor poly(3-hexylthiophene), a polymer with significantly better prospects for commercial OPV due to its relative scalability and stability. Thanks to the well-matched optoelectronic and morphological properties of these materials, efficiencies of 6.4% are achieved which is the highest reported for fullerene-free P3HT devices. In addition, dramatically improved air stability is demonstrated relative to other high-efficiency OPV, showing the excellent potential of this new material combination for future technological applications.
Queen Mary Universit... arrow_drop_down Queen Mary University of London: Queen Mary Research Online (QMRO)Article . 2016License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Imperial College London: SpiralArticle . 2016License: CC BYFull-Text: http://hdl.handle.net/10044/1/33640Data sources: Bielefeld Academic Search Engine (BASE)King Abdullah University of Science and Technology: KAUST RepositoryArticle . 2016License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Spiral - Imperial College Digital RepositoryArticle . 2016Data sources: Spiral - Imperial College Digital Repositoryhttp://dx.doi.org/10.1038/ncom...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=10.1038/ncomms11585&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 1K citations 1,097 popularity Top 0.1% influence Top 0.1% impulse Top 0.01% Powered by BIP!
more_vert Queen Mary Universit... arrow_drop_down Queen Mary University of London: Queen Mary Research Online (QMRO)Article . 2016License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Imperial College London: SpiralArticle . 2016License: CC BYFull-Text: http://hdl.handle.net/10044/1/33640Data sources: Bielefeld Academic Search Engine (BASE)King Abdullah University of Science and Technology: KAUST RepositoryArticle . 2016License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Spiral - Imperial College Digital RepositoryArticle . 2016Data sources: Spiral - Imperial College Digital Repositoryhttp://dx.doi.org/10.1038/ncom...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=10.1038/ncomms11585&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu
description Publicationkeyboard_double_arrow_right Article , Journal 2019 Saudi ArabiaPublisher:Wiley Jafar I. Khan; Arif D. Sheikh; Maha A. Alamoudi; Dounya Barrit; Esma Ugur; Frédéric Laquai; Aram Amassian;handle: 10754/660539
The role of residual lead iodide on the photophysical properties of methylammonium lead iodide is still unclear and contradictory views exist about its impact. Herein, it is reported that there is a critical amount of residual lead iodide, which is beneficial for the solar cell performance. Transient absorption spectroscopy is used to investigate the charge carrier recombination dynamics in perovskite solar cells and to address the role of different amounts of residual lead iodide. The amount of lead iodide is varied through the perovskite thin film preparation protocol upon a modified two‐step fabrication process. Slower carrier dynamics are observed at the perovskite/titanium dioxide interface in the presence of residual lead iodide when exciting the perovskite at the perovskite/titanium interface, which correlates with improved solar cell device performance. Excitation from the perovskite side indicates that the effect of residual lead iodide is primarily at the titanium dioxide interface. Increasing the lead iodide content does not further alter the carrier recombination; on the contrary, it results in lower device performance. This study confirms that the presence of lead iodide can have a beneficial effect, as it reduces charge carrier recombination at the perovskite/titanium dioxide interface.
Energy Technology arrow_drop_down Energy TechnologyArticle . 2019 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: CrossrefKing Abdullah University of Science and Technology: KAUST RepositoryArticle . 2019Data 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=10.1002/ente.201900627&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 11 citations 11 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_vert Energy Technology arrow_drop_down Energy TechnologyArticle . 2019 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: CrossrefKing Abdullah University of Science and Technology: KAUST RepositoryArticle . 2019Data 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=10.1002/ente.201900627&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Conference object , Other literature type , Journal 2016 United Kingdom, Saudi Arabia, Saudi ArabiaPublisher:Springer Science and Business Media LLC Funded by:EC | ARTESUN, EC | POLYMED, EC | SC2 +3 projectsEC| ARTESUN ,EC| POLYMED ,EC| SC2 ,DFG| Synthetic Carbon Allotropes ,UKRI| Doctoral Training Centre in Science and Application of Plastic Electronic Materials ,UKRI| [Newton] Advancing the efficiency and production potential of excitonic solar cells (APEX), Phase- IIZhengrong Shang; Sarah Holliday; Stoichko D. Dimitrov; Andrew Wadsworth; Iain McCulloch; Iain McCulloch; Raja Shahid Ashraf; Christoph J. Brabec; Alberto Salleo; Maha A. Alamoudi; James R. Durrant; Syeda Amber Yousaf; Christian B. Nielsen; Nicola Gasparini; Frédéric Laquai; Ching-Hong Tan; Derya Baran;AbstractSolution-processed organic photovoltaics (OPV) offer the attractive prospect of low-cost, light-weight and environmentally benign solar energy production. The highest efficiency OPV at present use low-bandgap donor polymers, many of which suffer from problems with stability and synthetic scalability. They also rely on fullerene-based acceptors, which themselves have issues with cost, stability and limited spectral absorption. Here we present a new non-fullerene acceptor that has been specifically designed to give improved performance alongside the wide bandgap donor poly(3-hexylthiophene), a polymer with significantly better prospects for commercial OPV due to its relative scalability and stability. Thanks to the well-matched optoelectronic and morphological properties of these materials, efficiencies of 6.4% are achieved which is the highest reported for fullerene-free P3HT devices. In addition, dramatically improved air stability is demonstrated relative to other high-efficiency OPV, showing the excellent potential of this new material combination for future technological applications.
Queen Mary Universit... arrow_drop_down Queen Mary University of London: Queen Mary Research Online (QMRO)Article . 2016License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Imperial College London: SpiralArticle . 2016License: CC BYFull-Text: http://hdl.handle.net/10044/1/33640Data sources: Bielefeld Academic Search Engine (BASE)King Abdullah University of Science and Technology: KAUST RepositoryArticle . 2016License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Spiral - Imperial College Digital RepositoryArticle . 2016Data sources: Spiral - Imperial College Digital Repositoryhttp://dx.doi.org/10.1038/ncom...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=10.1038/ncomms11585&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 1K citations 1,097 popularity Top 0.1% influence Top 0.1% impulse Top 0.01% Powered by BIP!
more_vert Queen Mary Universit... arrow_drop_down Queen Mary University of London: Queen Mary Research Online (QMRO)Article . 2016License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Imperial College London: SpiralArticle . 2016License: CC BYFull-Text: http://hdl.handle.net/10044/1/33640Data sources: Bielefeld Academic Search Engine (BASE)King Abdullah University of Science and Technology: KAUST RepositoryArticle . 2016License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Spiral - Imperial College Digital RepositoryArticle . 2016Data sources: Spiral - Imperial College Digital Repositoryhttp://dx.doi.org/10.1038/ncom...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=10.1038/ncomms11585&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu