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Increased upconversion performance for thin film solar cells: a trimolecular composition
Photochemical upconversion based on triplet–triplet annihilation (TTA-UC) is employed to enhance the short-circuit currents generated by two varieties of thin-film solar cells, a hydrogenated amorphous silicon (a-Si:H) solar cell and a dye-sensitized solar cell (DSC). TTA-UC is exploited to harvest...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Royal Society of Chemistry
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5519954/ https://www.ncbi.nlm.nih.gov/pubmed/28791105 http://dx.doi.org/10.1039/c5sc03215f |
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author | Cheng, Yuen Yap Nattestad, Andrew Schulze, Tim F. MacQueen, Rowan W. Fückel, Burkhard Lips, Klaus Wallace, Gordon G. Khoury, Tony Crossley, Maxwell J. Schmidt, Timothy W. |
author_facet | Cheng, Yuen Yap Nattestad, Andrew Schulze, Tim F. MacQueen, Rowan W. Fückel, Burkhard Lips, Klaus Wallace, Gordon G. Khoury, Tony Crossley, Maxwell J. Schmidt, Timothy W. |
author_sort | Cheng, Yuen Yap |
collection | PubMed |
description | Photochemical upconversion based on triplet–triplet annihilation (TTA-UC) is employed to enhance the short-circuit currents generated by two varieties of thin-film solar cells, a hydrogenated amorphous silicon (a-Si:H) solar cell and a dye-sensitized solar cell (DSC). TTA-UC is exploited to harvest transmitted sub-bandgap photons, combine their energies and re-radiate upconverted photons back towards the solar cells. In the present study we employ a dual-emitter TTA-UC system which allows for significantly improved UC quantum yields as compared to the previously used single-emitter TTA systems. In doing so we achieve record photo-current enhancement values for both the a-Si:H device and the DSC, surpassing 10(–3) mA cm(–2) sun(–2) for the first time for a TTA-UC system and marking a record for upconversion-enhanced solar cells in general. We discuss pertinent challenges of the TTA-UC technology which need to be addressed in order to achieve its viable device application. |
format | Online Article Text |
id | pubmed-5519954 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-55199542017-08-08 Increased upconversion performance for thin film solar cells: a trimolecular composition Cheng, Yuen Yap Nattestad, Andrew Schulze, Tim F. MacQueen, Rowan W. Fückel, Burkhard Lips, Klaus Wallace, Gordon G. Khoury, Tony Crossley, Maxwell J. Schmidt, Timothy W. Chem Sci Chemistry Photochemical upconversion based on triplet–triplet annihilation (TTA-UC) is employed to enhance the short-circuit currents generated by two varieties of thin-film solar cells, a hydrogenated amorphous silicon (a-Si:H) solar cell and a dye-sensitized solar cell (DSC). TTA-UC is exploited to harvest transmitted sub-bandgap photons, combine their energies and re-radiate upconverted photons back towards the solar cells. In the present study we employ a dual-emitter TTA-UC system which allows for significantly improved UC quantum yields as compared to the previously used single-emitter TTA systems. In doing so we achieve record photo-current enhancement values for both the a-Si:H device and the DSC, surpassing 10(–3) mA cm(–2) sun(–2) for the first time for a TTA-UC system and marking a record for upconversion-enhanced solar cells in general. We discuss pertinent challenges of the TTA-UC technology which need to be addressed in order to achieve its viable device application. Royal Society of Chemistry 2016-01-01 2015-10-09 /pmc/articles/PMC5519954/ /pubmed/28791105 http://dx.doi.org/10.1039/c5sc03215f Text en This journal is © The Royal Society of Chemistry 2015 http://creativecommons.org/licenses/by/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution 3.0 Unported License (http://creativecommons.org/licenses/by/3.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Chemistry Cheng, Yuen Yap Nattestad, Andrew Schulze, Tim F. MacQueen, Rowan W. Fückel, Burkhard Lips, Klaus Wallace, Gordon G. Khoury, Tony Crossley, Maxwell J. Schmidt, Timothy W. Increased upconversion performance for thin film solar cells: a trimolecular composition |
title | Increased upconversion performance for thin film solar cells: a trimolecular composition |
title_full | Increased upconversion performance for thin film solar cells: a trimolecular composition |
title_fullStr | Increased upconversion performance for thin film solar cells: a trimolecular composition |
title_full_unstemmed | Increased upconversion performance for thin film solar cells: a trimolecular composition |
title_short | Increased upconversion performance for thin film solar cells: a trimolecular composition |
title_sort | increased upconversion performance for thin film solar cells: a trimolecular composition |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5519954/ https://www.ncbi.nlm.nih.gov/pubmed/28791105 http://dx.doi.org/10.1039/c5sc03215f |
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