Asymmetric ITIC acceptor for asymmetric benzodithiophene polymer solar cells
Asymmetric ITIC acceptor for asymmetric benzodithiophene polymer solar cells
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DOI：
10.1016/j.dyepig.2020.108727
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发表时间：
2020-12
影响因子：
4.5
通讯作者：
K. Zhu;Yaqian Zhong;Xiangkun Wang;Feng Li;Liangmin Yu;L. Chu;Mingliang Sun
中科院分区：
文献类型：
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作者：
K. Zhu;Yaqian Zhong;Xiangkun Wang;Feng Li;Liangmin Yu;L. Chu;Mingliang Sun
In this work, one novel asymmetric non-fullerene acceptor ITIC-3T was designed and synthesized. ITIC-3T molecule shows 1.58 eV Eg, with −3.95 eV LUMO level. Utilizing P3 (one asymmetric 2D conjugated benzodithiophene polymer) as donor material, bulk heterojunction solar cells were fabricated. The optimal device yields a PCE of 6.47% with aVOCof 0.64 V, a FF of 55.5% and a highJSCof 18.18 mA cm−2, which may be attributed to the complementary optical absorption of active blend (P3 and ITIC-3T). In general, this work demonstrates that asymmetric polymer donor and non-fullerene acceptor active layer blend is potential for fabricating efficient photovoltaic cells.
