Built-in voltage of organic bulk heterojuction p-i-n solar cells measured by electroabsorption spectroscopy
We investigate the influence of the built-in voltage on the performance of organic bulk heterojuction solar cells that are based on a p-i-n structure. Electrical doping in the hole and the electron transport layer allows to tune their work function and hence to adjust the built-in voltage: Changing...
| 主要な著者: | , , , , , , , , , |
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| フォーマット: | Journal article |
| 言語: | English |
| 出版事項: |
American Institute of Physics Inc.
2014
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| _version_ | 1826267538669961216 |
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| author | Siebert-Henze, E Lyssenko, V Fischer, J Tietze, M Brueckner, R Schwarze, M Vandewal, K Ray, D Riede, M Leo, K |
| author_facet | Siebert-Henze, E Lyssenko, V Fischer, J Tietze, M Brueckner, R Schwarze, M Vandewal, K Ray, D Riede, M Leo, K |
| author_sort | Siebert-Henze, E |
| collection | OXFORD |
| description | We investigate the influence of the built-in voltage on the performance of organic bulk heterojuction solar cells that are based on a p-i-n structure. Electrical doping in the hole and the electron transport layer allows to tune their work function and hence to adjust the built-in voltage: Changing the doping concentration from 0.5 to 32 wt% induces a shift of the work function towards the transport levels and increases the built-in voltage. To determine the built-in voltage, we use electroabsorption spectroscopy which is based on an evaluation of the spectra caused by a change in absorption due to an electric field (Stark effect). For a model system with a bulk heterojunction of BF-DPB and C60, we show that higher doping concentrations in both the electron and the hole transport layer increase the built-in voltage, leading to an enhanced short circuit current and solar cell performance. © 2014 Author(s). |
| first_indexed | 2024-03-06T20:55:44Z |
| format | Journal article |
| id | oxford-uuid:39303e5f-0e0c-46bc-a38e-d52458fd7c05 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:55:44Z |
| publishDate | 2014 |
| publisher | American Institute of Physics Inc. |
| record_format | dspace |
| spelling | oxford-uuid:39303e5f-0e0c-46bc-a38e-d52458fd7c052022-03-26T13:54:09ZBuilt-in voltage of organic bulk heterojuction p-i-n solar cells measured by electroabsorption spectroscopyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:39303e5f-0e0c-46bc-a38e-d52458fd7c05EnglishSymplectic Elements at OxfordAmerican Institute of Physics Inc.2014Siebert-Henze, ELyssenko, VFischer, JTietze, MBrueckner, RSchwarze, MVandewal, KRay, DRiede, MLeo, KWe investigate the influence of the built-in voltage on the performance of organic bulk heterojuction solar cells that are based on a p-i-n structure. Electrical doping in the hole and the electron transport layer allows to tune their work function and hence to adjust the built-in voltage: Changing the doping concentration from 0.5 to 32 wt% induces a shift of the work function towards the transport levels and increases the built-in voltage. To determine the built-in voltage, we use electroabsorption spectroscopy which is based on an evaluation of the spectra caused by a change in absorption due to an electric field (Stark effect). For a model system with a bulk heterojunction of BF-DPB and C60, we show that higher doping concentrations in both the electron and the hole transport layer increase the built-in voltage, leading to an enhanced short circuit current and solar cell performance. © 2014 Author(s). |
| spellingShingle | Siebert-Henze, E Lyssenko, V Fischer, J Tietze, M Brueckner, R Schwarze, M Vandewal, K Ray, D Riede, M Leo, K Built-in voltage of organic bulk heterojuction p-i-n solar cells measured by electroabsorption spectroscopy |
| title | Built-in voltage of organic bulk heterojuction p-i-n solar cells measured by electroabsorption spectroscopy |
| title_full | Built-in voltage of organic bulk heterojuction p-i-n solar cells measured by electroabsorption spectroscopy |
| title_fullStr | Built-in voltage of organic bulk heterojuction p-i-n solar cells measured by electroabsorption spectroscopy |
| title_full_unstemmed | Built-in voltage of organic bulk heterojuction p-i-n solar cells measured by electroabsorption spectroscopy |
| title_short | Built-in voltage of organic bulk heterojuction p-i-n solar cells measured by electroabsorption spectroscopy |
| title_sort | built in voltage of organic bulk heterojuction p i n solar cells measured by electroabsorption spectroscopy |
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