Achieving over 17% efficiency of ternary all-polymer solar cells with two well-compatible polymer acceptors
In: Joule, Jg. 5 (2021-06-01), S. 1548-1565
Online
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Zugriff:
Summary The field of all-polymer solar cells (all-PSCs) has experienced rapid development during the past few years, mainly driven by the design of efficient polymer acceptors (PAs). However, the polymer/polymer blend systems still lag far behind polymer/small molecule acceptor counterparts in power conversion efficiencies (PCEs). Here, we designed a near-infrared PA PY2F-T and paired it with polymer donor PM6 to fabricate all-PSCs with 15.0% PCE. Afterwards, PYT as the third component was introduced into the PM6:PY2F-T host system. Because of the complementary absorption bands and finely tuned microstructures of the ternary blend, the PCE is improved up to 17.2%, with the external quantum efficiency over 80% in visible and near-infrared spectral regions. Impressively, the ternary blend exhibited less energy loss, better light-soaking and photo-thermal stabilities than did the corresponding binary systems. This work promotes the development of high-performance ternary all-polymer systems and heralds a brighter future for accelerating the possible applications of all-PSCs.
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Achieving over 17% efficiency of ternary all-polymer solar cells with two well-compatible polymer acceptors
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Autor/in / Beteiligte Person: | Wu, Yao ; Xia, Xinxin ; Shi, Mumin ; Lu, Xinhui ; Yang, Yang ; Zheng, Yina ; Wu, Qiang ; Li, Yongfang ; Shen, Hao ; Xia, Jianlong ; Chen, Zeng ; Yu, Han ; Wang, Tao ; Sun, Rui ; Guo, Jing ; Yang, Wenyan ; Min, Jie ; Yan, He ; Wang, Wei ; Brabec, Christoph J. |
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Zeitschrift: | Joule, Jg. 5 (2021-06-01), S. 1548-1565 |
Veröffentlichung: | Elsevier BV, 2021 |
Medientyp: | unknown |
ISSN: | 2542-4351 (print) |
DOI: | 10.1016/j.joule.2021.04.007 |
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