An efficient medium-bandgap nonfullerene acceptor for organic solar cells,Journal of Materials Chemistry A

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An efficient medium-bandgap nonfullerene acceptor for organic solar cells
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2020-04-15 , DOI: 10.1039/d0ta02427a
Qishi Liu _{1,

2,

3,

4,

5} , Ke Jin _{6,

7,

8,

9,

10} , Wenting Li _{6,

7,

8,

9,

10} , Zuo Xiao _{6,

7,

8,

9,

10} , Ming Cheng _{10,

11,

12,

13} , Yongbo Yuan _{10,

14,

15,

16} , Shengwei Shi _{10,

17,

18,

19} , Zhiwen Jin _{10,

20,

21,

22} , Feng Hao _{10,

23,

24,

25} , Shangfeng Yang _{1,

2,

3,

4,

5} , Liming Ding _{6,

7,

8,

9,

10}

Affiliation

Hefei National Laboratory for Physical Sciences at Microscale
Key Laboratory of Materials for Energy Conversion (CAS)
Department of Materials Science and Engineering
University of Science and Technology of China
Hefei 230026
Center for Excellence in Nanoscience (CAS)
Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS)
National Center for Nanoscience and Technology
Beijing 100190
China
Institute for Energy Research
Jiangsu University
Zhenjiang 212013
School of Physics & Electronics
Central South University
Changsha 410083
School of Materials Science and Engineering
Wuhan Institute of Technology
Wuhan 430205
School of Physical Science and Technology
Lanzhou University
Lanzhou 730000
School of Materials and Energy
University of Electronic Science and Technology of China
Chengdu 610054

A medium-bandgap acceptor IBCT based on an 2-(1-oxo-1,2-dihydro-3H-benzo[b]cyclopenta[d]thiophen-3-ylidene)malononitrile end unit was developed. IBCT has an optical bandgap of 1.65 eV and afforded a power conversion efficiency of 11.26% and an open-circuit voltage of 1.02 V in single-junction organic solar cells when blending with a wide-bandgap copolymer donor L1. The L1:IBCT solar cell was further used as the front cell in tandem solar cells, yielding a 15.25% efficiency. IBCT is among the best medium-bandgap acceptors.

中文翻译：

用于有机太阳能电池的高效中带隙非富勒烯受体

研制了基于2-（1-氧代-1,2-二氢-3 H-苯并[ b ]环戊[ d ]噻吩-3-亚烷基）丙二腈末端单元的中带隙受体IBCT 。IBCT与宽带隙共聚物供体L1混合时，单结有机太阳能电池的光学带隙为1.65 eV，功率转换效率为11.26％，开路电压为1.02V。L1：IBCT太阳能电池还用作串联太阳能电池中的前电池，效率为15.25％。IBCT是最佳的中带隙受体之一。

更新日期：2020-04-15

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