Vacuum-deposited donors for low-voltage-loss nonfullerene organic solar cells
<p>The advent of nonfullerene acceptors (NFAs) enabled records of organic photovoltaics (OPVs) exceeding 19% power conversion efficiency in the laboratory. However, high-efficiency NFAs have so far only been realized in solution-processed blends. Due to its proven track record in upscaled indu...
| Κύριοι συγγραφείς: | , , , , , , |
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| Μορφή: | Journal article |
| Γλώσσα: | English |
| Έκδοση: |
American Chemical Society
2023
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| _version_ | 1826310863621980160 |
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| author | Kaienburg, P Bristow, H Jungbluth, A Habib, I McCulloch, I Beljonne, D Riede, M |
| author_facet | Kaienburg, P Bristow, H Jungbluth, A Habib, I McCulloch, I Beljonne, D Riede, M |
| author_sort | Kaienburg, P |
| collection | OXFORD |
| description | <p>The advent of nonfullerene acceptors (NFAs) enabled records of organic photovoltaics (OPVs) exceeding 19% power conversion efficiency in the laboratory. However, high-efficiency NFAs have so far only been realized in solution-processed blends. Due to its proven track record in upscaled industrial production, vacuum thermal evaporation (VTE) is of prime interest for real-world OPV commercialization. Here, we combine the benchmark solution-processed NFA Y6 with three different evaporated donors in a bilayer (planar heterojunction) architecture. We find that voltage losses decrease by hundreds of millivolts when VTE donors are paired with the NFA instead of the fullerene C<sub>60</sub>, the current standard acceptor in VTE OPVs. By showing that evaporated small-molecule donors behave much like solution-processed donor polymers in terms of voltage loss when combined with NFAs, we highlight the immense potential for evaporable NFAs and the urgent need to direct synthesis efforts toward making smaller, evaporable compounds.</p> |
| first_indexed | 2024-03-07T07:59:48Z |
| format | Journal article |
| id | oxford-uuid:f30356e0-a127-4003-a0c1-d3578cf9209c |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:59:48Z |
| publishDate | 2023 |
| publisher | American Chemical Society |
| record_format | dspace |
| spelling | oxford-uuid:f30356e0-a127-4003-a0c1-d3578cf9209c2023-09-06T12:00:52ZVacuum-deposited donors for low-voltage-loss nonfullerene organic solar cellsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f30356e0-a127-4003-a0c1-d3578cf9209cEnglishSymplectic ElementsAmerican Chemical Society2023Kaienburg, PBristow, HJungbluth, AHabib, IMcCulloch, IBeljonne, DRiede, M<p>The advent of nonfullerene acceptors (NFAs) enabled records of organic photovoltaics (OPVs) exceeding 19% power conversion efficiency in the laboratory. However, high-efficiency NFAs have so far only been realized in solution-processed blends. Due to its proven track record in upscaled industrial production, vacuum thermal evaporation (VTE) is of prime interest for real-world OPV commercialization. Here, we combine the benchmark solution-processed NFA Y6 with three different evaporated donors in a bilayer (planar heterojunction) architecture. We find that voltage losses decrease by hundreds of millivolts when VTE donors are paired with the NFA instead of the fullerene C<sub>60</sub>, the current standard acceptor in VTE OPVs. By showing that evaporated small-molecule donors behave much like solution-processed donor polymers in terms of voltage loss when combined with NFAs, we highlight the immense potential for evaporable NFAs and the urgent need to direct synthesis efforts toward making smaller, evaporable compounds.</p> |
| spellingShingle | Kaienburg, P Bristow, H Jungbluth, A Habib, I McCulloch, I Beljonne, D Riede, M Vacuum-deposited donors for low-voltage-loss nonfullerene organic solar cells |
| title | Vacuum-deposited donors for low-voltage-loss nonfullerene organic solar cells |
| title_full | Vacuum-deposited donors for low-voltage-loss nonfullerene organic solar cells |
| title_fullStr | Vacuum-deposited donors for low-voltage-loss nonfullerene organic solar cells |
| title_full_unstemmed | Vacuum-deposited donors for low-voltage-loss nonfullerene organic solar cells |
| title_short | Vacuum-deposited donors for low-voltage-loss nonfullerene organic solar cells |
| title_sort | vacuum deposited donors for low voltage loss nonfullerene organic solar cells |
| work_keys_str_mv | AT kaienburgp vacuumdepositeddonorsforlowvoltagelossnonfullereneorganicsolarcells AT bristowh vacuumdepositeddonorsforlowvoltagelossnonfullereneorganicsolarcells AT jungblutha vacuumdepositeddonorsforlowvoltagelossnonfullereneorganicsolarcells AT habibi vacuumdepositeddonorsforlowvoltagelossnonfullereneorganicsolarcells AT mccullochi vacuumdepositeddonorsforlowvoltagelossnonfullereneorganicsolarcells AT beljonned vacuumdepositeddonorsforlowvoltagelossnonfullereneorganicsolarcells AT riedem vacuumdepositeddonorsforlowvoltagelossnonfullereneorganicsolarcells |