https://scholars.lib.ntu.edu.tw/handle/123456789/547552
標題: | Over 15% Efficiency in Ternary Organic Solar Cells by Enhanced Charge Transport and Reduced Energy Loss | 作者: | Wang, H. Zhang, Z. Yu, J. Lin, P.-C. Chueh, C.-C. Liu, X. Guang, S. Qu, S. Tang, W. CHU-CHEN CHUEH |
關鍵字: | charge transport; energy transfer; fullerene derivative acceptor; open-circuit voltage; ternary organic solar cells | 公開日期: | 2020 | 卷: | 12 | 期: | 19 | 起(迄)頁: | 21633-21640 | 來源出版物: | ACS Applied Materials and Interfaces | 摘要: | In this study, an efficient ternary bulk-heterojunction (BHJ) organic solar cell (OSC) is demonstrated by incorporating two acceptors, PC61BM and ITC6-4F, with a polymer donor (PM6). This reveals that the addition of PC61BM not only enhances the electron mobility of the derived BHJ blend but also facilitates exciton dissociation, resulting in a more balanced charge transport alongside with reduced trap-assisted charge recombination. Consequently, as compared to the pristine PM6/ITC6-4F device, the optimal ternary OSC is revealed to deliver an improved power conversion efficiency (PCE) of 15.11% with a boosted JSC, VOC, and fill factor (FF) simultaneously. The resultant VOC and FF are among the highest values recorded in the literature for the ternary OSCs with a PCE exceeding 15%. This result thus suggests that besides improving the charge transport characteristics in devices, incorporating a fullerene derivative as part of the acceptor can also improve the resultant VOC, which can reduce the energy loss to realize efficient organic photovoltaics. Copyright © 2020 American Chemical Society. |
URI: | https://www.scopus.com/inward/record.url?eid=2-s2.0-85084693842&partnerID=40&md5=d31ddd3d67c603be979df4c2db4e97af https://scholars.lib.ntu.edu.tw/handle/123456789/547552 |
ISSN: | Wang, H.;Zhang, Z.;Yu, J.;Lin, P.-C.;Chueh, C.-C.;Liu, X.;Guang, S.;Qu, S.;Tang, W. | DOI: | 10.1021/acsami.0c03484 | SDG/關鍵字: | Carrier transport; Energy dissipation; Energy efficiency; Heterojunctions; Balanced charge transport; Bulk heterojunction (BHJ); Charge recombinations; Exciton dissociation; Fullerene derivative; Organic photovoltaics; Power conversion efficiencies; Transport characteristics; Organic solar cells |
顯示於: | 化學工程學系 |
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