Academic Journal
Solution-Processed Transparent Conducting Electrodes for Flexible Organic Solar Cells with 16.61% Efficiency
| Title: | Solution-Processed Transparent Conducting Electrodes for Flexible Organic Solar Cells with 16.61% Efficiency |
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| Authors: | Juanyong Wan, Yonggao Xia, Junfeng Fang, Zhiguo Zhang, Bingang Xu, Jinzhao Wang, Ling Ai, Weijie Song, Kwun Nam Hui, Xi Fan, Yongfang Li |
| Source: | Nano-Micro Letters, Vol 13, Iss 1, Pp 1-14 (2021) |
| Publisher Information: | SpringerOpen, 2021. |
| Publication Year: | 2021 |
| Collection: | LCC:Technology |
| Subject Terms: | Solution-processed transparent conducting electrode, Flexible organic solar cell, PEDOT:PSS, Trifluoromethanesulfonic acid doping, Solution processing, Technology |
| More Details: | Abstract Nonfullerene organic solar cells (OSCs) have achieved breakthrough with pushing the efficiency exceeding 17%. While this shed light on OSC commercialization, high-performance flexible OSCs should be pursued through solution manufacturing. Herein, we report a solution-processed flexible OSC based on a transparent conducting PEDOT:PSS anode doped with trifluoromethanesulfonic acid (CF3SO3H). Through a low-concentration and low-temperature CF3SO3H doping, the conducting polymer anodes exhibited a main sheet resistance of 35 Ω sq−1 (minimum value: 32 Ω sq−1), a raised work function (≈ 5.0 eV), a superior wettability, and a high electrical stability. The high work function minimized the energy level mismatch among the anodes, hole-transporting layers and electron-donors of the active layers, thereby leading to an enhanced carrier extraction. The solution-processed flexible OSCs yielded a record-high efficiency of 16.41% (maximum value: 16.61%). Besides, the flexible OSCs afforded the 1000 cyclic bending tests at the radius of 1.5 mm and the long-time thermal treatments at 85 °C, demonstrating a high flexibility and a good thermal stability. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2311-6706 2150-5551 |
| Relation: | https://doaj.org/toc/2311-6706; https://doaj.org/toc/2150-5551 |
| DOI: | 10.1007/s40820-020-00566-3 |
| Access URL: | https://doaj.org/article/0fc70a2b1b1142649db5ce6965424153 |
| Accession Number: | edsdoj.0fc70a2b1b1142649db5ce6965424153 |
| Database: | Directory of Open Access Journals |
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| ISSN: | 23116706 21505551 |
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| DOI: | 10.1007/s40820-020-00566-3 |
| Published in: | Nano-Micro Letters |
| Language: | English |