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description Publicationkeyboard_double_arrow_right Article 2025Publisher:Royal Society of Chemistry (RSC) Funded by:UKRI | Next generation in-situ a...UKRI| Next generation in-situ analysis for perovskite photovoltaic developmentXuan Li; Giuseppe Nasti; Chris Dreessen; Janardan Dagar; Rico Meitzner; Davide Amoroso; Pier Luca Maffettone; Thomas Kirchartz; Eva Unger; Antonio Abate; Stoichko D. Dimitrov;doi: 10.1039/d4se01321b
A new method and additive for printing tin-based perovskite films were developed, which enabled printing the first slot-die-coated tin perovskite device. This advancement paves the way for scalable, fully printed lead-free perovskite photovoltaics.
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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=10.1039/d4se01321b&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routeshybrid 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=10.1039/d4se01321b&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2014 United KingdomPublisher:Royal Society of Chemistry (RSC) Stoichko D. Dimitrov; Zhenggang Huang; Raja Shahid Ashraf; Florent Deledalle; Bob C. Schroeder; James R. Durrant; Iain McCulloch; Christian B. Nielsen; Safa Shoaee; Safa Shoaee;doi: 10.1039/c3ee42607f
handle: 10044/1/14687
Photocurrent from fullerene excitons in polymer–fullerene solar cells is optimised by employing a series of low bandgap diketopyrrolopyrrole-containing polymers with differing molecular weights. The low LUMO level of this donor polymer prevents efficient charge generation from polymer excitons, allowing us to focus on charge and photocurrent generation specifically from fullerene excitons. We employ femtosecond transient absorption spectroscopy and transmission electron microscopy to show a correlation between fullerene domain size and the kinetics of polaron generation from fullerene excitons, and relate these observations to device efficiency. Charge generation from fullerene excitons is shown to occur on the 0.5 ns timescale, limited by the kinetics of diffusion of fullerene excitons to domain interfaces with donor polymers. For devices employing the highest molecular weight donor polymer, ∼7 mA cm−2 of photocurrent is observed from fullerene excitons, leading to an overall device efficiency of 5.2%.
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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=10.1039/c3ee42607f&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 44 citations 44 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=10.1039/c3ee42607f&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2014 United KingdomPublisher:Royal Society of Chemistry (RSC) Safa Shoaee; Stoichko D. Dimitrov; James R. Durrant; Sunil Kumar Kandappa; K. S. Narayan; Sridhar Rajaram; Ravichandran Shivanna;doi: 10.1039/c3ee42484g
The origin of high current density in efficient non-fullerene based bulk heterojunction (BHJ) organic solar cells employing a non-planar perylene dimer (TP) as an electron acceptor and a thiophene based donor polymer PBDTTT-CT is investigated using electrical and optical techniques. Photoluminescence measurements reveal almost complete quenching of both the donor and acceptor excitons, indicating efficient electron and hole transfer processes. The nanomorphology of the films shows fine mixing of the donor polymer and TP at 50 : 50% weight ratio with a photon to current conversion efficiency (IPCE) of 45% in the visible regime. At the donor–acceptor interface, both polymer and TP excitons undergo fast dissociation with similar time scales of a few picoseconds. The magnitude of the polaron yield of PBDTTT-CT:TP blends is observed to be comparable to that of PBDTTT-CT:PC70BM blends and exhibits similar μs-decay dynamics. A power conversion efficiency of 3.2% is achieved for devices with 50 : 50% by weight compositional ratio of polymer and TP.
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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=10.1039/c3ee42484g&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 217 citations 217 popularity Top 1% influence Top 1% impulse Top 0.1% 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=10.1039/c3ee42484g&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Conference object , Other literature type , Journal 2018 United KingdomPublisher:Springer Science and Business Media LLC Funded by:EC | INTERSOLAR, UKRI | Doctoral Training Centre ..., UKRI | A centre for doctoral tra... +5 projectsEC| INTERSOLAR ,UKRI| Doctoral Training Centre in Science and Application of Plastic Electronic Materials ,UKRI| A centre for doctoral training on the theory and simulation of materials ,UKRI| High resolution mapping of performance and degradation mechanisms in printable photovoltaic devices ,UKRI| Characterisation and rational design of porous conjugated polymers for solar energy conversion ,UKRI| Integration of Computation and Experiment for Accelerated Materials Discovery ,EC| CAPaCITy ,UKRI| Rational design of functional porous macromolecular materials: Evolutionary algorithms and multiscale modellingFrédéric Blanc; Martijn A. Zwijnenburg; Jenny Nelson; Xingyuan Shi; Stoichko D. Dimitrov; Stoichko D. Dimitrov; Nick J. Brownbill; Sam A. J. Hillman; Adriano Monti; Andrew I. Cooper; James R. Durrant; Drew Pearce; Anne A. Y. Guilbert; Reiner Sebastian Sprick; Michael Sachs;AbstractConjugated polymers have sparked much interest as photocatalysts for hydrogen production. However, beyond basic considerations such as spectral absorption, the factors that dictate their photocatalytic activity are poorly understood. Here we investigate a series of linear conjugated polymers with external quantum efficiencies for hydrogen production between 0.4 and 11.6%. We monitor the generation of the photoactive species from femtoseconds to seconds after light absorption using transient spectroscopy and correlate their yield with the measured photocatalytic activity. Experiments coupled with modeling suggest that the localization of water around the polymer chain due to the incorporation of sulfone groups into an otherwise hydrophobic backbone is crucial for charge generation. Calculations of solution redox potentials and charge transfer free energies demonstrate that electron transfer from the sacrificial donor becomes thermodynamically favored as a result of the more polar local environment, leading to the production of long-lived electrons in these amphiphilic polymers.
CORE arrow_drop_down Imperial College London: SpiralArticle . 2018License: CC BYFull-Text: http://hdl.handle.net/10044/1/66649Data sources: Bielefeld Academic Search Engine (BASE)Queen Mary University of London: Queen Mary Research Online (QMRO)Article . 2018License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Spiral - Imperial College Digital RepositoryArticle . 2018Data sources: Spiral - Imperial College Digital 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=10.1038/s41467-018-07420-6&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 293 citations 293 popularity Top 0.1% influence Top 1% impulse Top 0.1% Powered by BIP!
more_vert CORE arrow_drop_down Imperial College London: SpiralArticle . 2018License: CC BYFull-Text: http://hdl.handle.net/10044/1/66649Data sources: Bielefeld Academic Search Engine (BASE)Queen Mary University of London: Queen Mary Research Online (QMRO)Article . 2018License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Spiral - Imperial College Digital RepositoryArticle . 2018Data sources: Spiral - Imperial College Digital 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=10.1038/s41467-018-07420-6&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.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2016 Saudi Arabia, Saudi Arabia, United Kingdom, Germany, China (People's Republic of), China (People's Republic of), China (People's Republic of)Publisher:Royal Society of Chemistry (RSC) Funded by:EC | POLYMED, UKRI | Doctoral Training Centre ..., EC | SC2 +1 projectsEC| POLYMED ,UKRI| Doctoral Training Centre in Science and Application of Plastic Electronic Materials ,EC| SC2 ,EC| ARTESUNAram Amassian; Nicola Gasparini; Scot Wheeler; Sarah Holliday; Stoichko D. Dimitrov; James R. Durrant; Thomas Kirchartz; Thomas Kirchartz; Derya Baran; Derya Baran; He Yan; Pascal Kaienburg; Jeffrey Gorman; Raja Shahid Ashraf; Maged Abdelsamie; Andrew Wadsworth; Iain McCulloch; Iain McCulloch; Christoph J. Brabec;Non-fullerene acceptors with optimized energy levels enable 10% efficient solar cells with reduced voltage losses <0.6 V.
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/10044/1/42576Data 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 RepositoryOxford University Research ArchiveArticle . 2019License: CC BYData sources: Oxford University Research ArchiveUniversitätsbibliographie, Universität Duisburg-EssenArticle . 2016Data sources: Universitätsbibliographie, Universität Duisburg-Essenadd 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=10.1039/c6ee02598f&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 448 citations 448 popularity Top 0.1% influence Top 1% impulse Top 0.1% 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/10044/1/42576Data 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 RepositoryOxford University Research ArchiveArticle . 2019License: CC BYData sources: Oxford University Research ArchiveUniversitätsbibliographie, Universität Duisburg-EssenArticle . 2016Data sources: Universitätsbibliographie, Universität Duisburg-Essenadd 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=10.1039/c6ee02598f&type=result"></script>'); --> </script>
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description Publicationkeyboard_double_arrow_right Article 2025Publisher:Royal Society of Chemistry (RSC) Funded by:UKRI | Next generation in-situ a...UKRI| Next generation in-situ analysis for perovskite photovoltaic developmentXuan Li; Giuseppe Nasti; Chris Dreessen; Janardan Dagar; Rico Meitzner; Davide Amoroso; Pier Luca Maffettone; Thomas Kirchartz; Eva Unger; Antonio Abate; Stoichko D. Dimitrov;doi: 10.1039/d4se01321b
A new method and additive for printing tin-based perovskite films were developed, which enabled printing the first slot-die-coated tin perovskite device. This advancement paves the way for scalable, fully printed lead-free perovskite photovoltaics.
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=10.1039/d4se01321b&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routeshybrid 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=10.1039/d4se01321b&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2014 United KingdomPublisher:Royal Society of Chemistry (RSC) Stoichko D. Dimitrov; Zhenggang Huang; Raja Shahid Ashraf; Florent Deledalle; Bob C. Schroeder; James R. Durrant; Iain McCulloch; Christian B. Nielsen; Safa Shoaee; Safa Shoaee;doi: 10.1039/c3ee42607f
handle: 10044/1/14687
Photocurrent from fullerene excitons in polymer–fullerene solar cells is optimised by employing a series of low bandgap diketopyrrolopyrrole-containing polymers with differing molecular weights. The low LUMO level of this donor polymer prevents efficient charge generation from polymer excitons, allowing us to focus on charge and photocurrent generation specifically from fullerene excitons. We employ femtosecond transient absorption spectroscopy and transmission electron microscopy to show a correlation between fullerene domain size and the kinetics of polaron generation from fullerene excitons, and relate these observations to device efficiency. Charge generation from fullerene excitons is shown to occur on the 0.5 ns timescale, limited by the kinetics of diffusion of fullerene excitons to domain interfaces with donor polymers. For devices employing the highest molecular weight donor polymer, ∼7 mA cm−2 of photocurrent is observed from fullerene excitons, leading to an overall device efficiency of 5.2%.
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=10.1039/c3ee42607f&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 44 citations 44 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=10.1039/c3ee42607f&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2014 United KingdomPublisher:Royal Society of Chemistry (RSC) Safa Shoaee; Stoichko D. Dimitrov; James R. Durrant; Sunil Kumar Kandappa; K. S. Narayan; Sridhar Rajaram; Ravichandran Shivanna;doi: 10.1039/c3ee42484g
The origin of high current density in efficient non-fullerene based bulk heterojunction (BHJ) organic solar cells employing a non-planar perylene dimer (TP) as an electron acceptor and a thiophene based donor polymer PBDTTT-CT is investigated using electrical and optical techniques. Photoluminescence measurements reveal almost complete quenching of both the donor and acceptor excitons, indicating efficient electron and hole transfer processes. The nanomorphology of the films shows fine mixing of the donor polymer and TP at 50 : 50% weight ratio with a photon to current conversion efficiency (IPCE) of 45% in the visible regime. At the donor–acceptor interface, both polymer and TP excitons undergo fast dissociation with similar time scales of a few picoseconds. The magnitude of the polaron yield of PBDTTT-CT:TP blends is observed to be comparable to that of PBDTTT-CT:PC70BM blends and exhibits similar μs-decay dynamics. A power conversion efficiency of 3.2% is achieved for devices with 50 : 50% by weight compositional ratio of polymer and TP.
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=10.1039/c3ee42484g&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen 217 citations 217 popularity Top 1% influence Top 1% impulse Top 0.1% 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=10.1039/c3ee42484g&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Conference object , Other literature type , Journal 2018 United KingdomPublisher:Springer Science and Business Media LLC Funded by:EC | INTERSOLAR, UKRI | Doctoral Training Centre ..., UKRI | A centre for doctoral tra... +5 projectsEC| INTERSOLAR ,UKRI| Doctoral Training Centre in Science and Application of Plastic Electronic Materials ,UKRI| A centre for doctoral training on the theory and simulation of materials ,UKRI| High resolution mapping of performance and degradation mechanisms in printable photovoltaic devices ,UKRI| Characterisation and rational design of porous conjugated polymers for solar energy conversion ,UKRI| Integration of Computation and Experiment for Accelerated Materials Discovery ,EC| CAPaCITy ,UKRI| Rational design of functional porous macromolecular materials: Evolutionary algorithms and multiscale modellingFrédéric Blanc; Martijn A. Zwijnenburg; Jenny Nelson; Xingyuan Shi; Stoichko D. Dimitrov; Stoichko D. Dimitrov; Nick J. Brownbill; Sam A. J. Hillman; Adriano Monti; Andrew I. Cooper; James R. Durrant; Drew Pearce; Anne A. Y. Guilbert; Reiner Sebastian Sprick; Michael Sachs;AbstractConjugated polymers have sparked much interest as photocatalysts for hydrogen production. However, beyond basic considerations such as spectral absorption, the factors that dictate their photocatalytic activity are poorly understood. Here we investigate a series of linear conjugated polymers with external quantum efficiencies for hydrogen production between 0.4 and 11.6%. We monitor the generation of the photoactive species from femtoseconds to seconds after light absorption using transient spectroscopy and correlate their yield with the measured photocatalytic activity. Experiments coupled with modeling suggest that the localization of water around the polymer chain due to the incorporation of sulfone groups into an otherwise hydrophobic backbone is crucial for charge generation. Calculations of solution redox potentials and charge transfer free energies demonstrate that electron transfer from the sacrificial donor becomes thermodynamically favored as a result of the more polar local environment, leading to the production of long-lived electrons in these amphiphilic polymers.
CORE arrow_drop_down Imperial College London: SpiralArticle . 2018License: CC BYFull-Text: http://hdl.handle.net/10044/1/66649Data sources: Bielefeld Academic Search Engine (BASE)Queen Mary University of London: Queen Mary Research Online (QMRO)Article . 2018License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Spiral - Imperial College Digital RepositoryArticle . 2018Data sources: Spiral - Imperial College Digital 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=10.1038/s41467-018-07420-6&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 293 citations 293 popularity Top 0.1% influence Top 1% impulse Top 0.1% Powered by BIP!
more_vert CORE arrow_drop_down Imperial College London: SpiralArticle . 2018License: CC BYFull-Text: http://hdl.handle.net/10044/1/66649Data sources: Bielefeld Academic Search Engine (BASE)Queen Mary University of London: Queen Mary Research Online (QMRO)Article . 2018License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Spiral - Imperial College Digital RepositoryArticle . 2018Data sources: Spiral - Imperial College Digital 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=10.1038/s41467-018-07420-6&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.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type , Journal 2016 Saudi Arabia, Saudi Arabia, United Kingdom, Germany, China (People's Republic of), China (People's Republic of), China (People's Republic of)Publisher:Royal Society of Chemistry (RSC) Funded by:EC | POLYMED, UKRI | Doctoral Training Centre ..., EC | SC2 +1 projectsEC| POLYMED ,UKRI| Doctoral Training Centre in Science and Application of Plastic Electronic Materials ,EC| SC2 ,EC| ARTESUNAram Amassian; Nicola Gasparini; Scot Wheeler; Sarah Holliday; Stoichko D. Dimitrov; James R. Durrant; Thomas Kirchartz; Thomas Kirchartz; Derya Baran; Derya Baran; He Yan; Pascal Kaienburg; Jeffrey Gorman; Raja Shahid Ashraf; Maged Abdelsamie; Andrew Wadsworth; Iain McCulloch; Iain McCulloch; Christoph J. Brabec;Non-fullerene acceptors with optimized energy levels enable 10% efficient solar cells with reduced voltage losses <0.6 V.
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/10044/1/42576Data 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 RepositoryOxford University Research ArchiveArticle . 2019License: CC BYData sources: Oxford University Research ArchiveUniversitätsbibliographie, Universität Duisburg-EssenArticle . 2016Data sources: Universitätsbibliographie, Universität Duisburg-Essenadd 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=10.1039/c6ee02598f&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 448 citations 448 popularity Top 0.1% influence Top 1% impulse Top 0.1% 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/10044/1/42576Data 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 RepositoryOxford University Research ArchiveArticle . 2019License: CC BYData sources: Oxford University Research ArchiveUniversitätsbibliographie, Universität Duisburg-EssenArticle . 2016Data sources: Universitätsbibliographie, Universität Duisburg-Essenadd 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=10.1039/c6ee02598f&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu