Triptycenyl‐phenazino‐thiadiazole as acceptor in organic bulk-heterojunction solar cells
Herein, we investigate the use of a triptycenyl‐phenazino-thiadiazole as an electron acceptor in solution-processed organic bulk-heterojunction solar cells. We characterize the optoelectronic properties of the acceptor molecule and examine its performance with three different donor polymers. We find...
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| Main Authors: | , , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
3 March 2018
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| In: |
Organic electronics
Year: 2018, Volume: 57, Pages: 285-291 |
| DOI: | 10.1016/j.orgel.2018.03.001 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1016/j.orgel.2018.03.001 Verlag: http://www.sciencedirect.com/science/article/pii/S1566119918300995 
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| Author Notes: | David Leibold, Vincent Lami, Yvonne J. Hofstetter, David Becker‐Koch, Andreas Weu, Philipp Biegger, Fabian Paulus, Uwe H.F. Bunz, Paul E. Hopkinson, Artem A. Bakulin, Yana Vaynzof |
| Summary: | Herein, we investigate the use of a triptycenyl‐phenazino-thiadiazole as an electron acceptor in solution-processed organic bulk-heterojunction solar cells. We characterize the optoelectronic properties of the acceptor molecule and examine its performance with three different donor polymers. We find that blends with PTB7 show the highest performance reaching a power conversion efficiency of 2.4%. Investigations of 1,8-diiodooctane (DIO) as an additive resulted in only a minor increase in performance (∼10%), suggesting that additives allow rather insignificant control over the blend microstructure. Using transient absorption spectroscopy we identify the loss mechanisms in the device and propose routes to enhance the performance further. |
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| Item Description: | Gesehen am 26.02.2020 |
| Physical Description: | Online Resource |
| DOI: | 10.1016/j.orgel.2018.03.001 |