A new small molecule acceptor based on indaceno[2,1-b:6,5-b'] dithiophene and thiophene-fused ending group for fullerene-free organic solar cells
- Authors
- Xie, Dongjun; Liu, Tao; Lee, Tack Ho; Gao, Wei; Zhong, Cheng; Huo, Lijun; Luo, Zhenghui; Wu, Kailong; Xiong, Wentao; Kim, Jin Young; Choi, Hyosung; Sun, Yanming; Yang, Chuluo
- Issue Date
- Jan-2018
- Publisher
- Elsevier BV
- Keywords
- Non-fullerene acceptors; Small molecule acceptor; End-capping group
- Citation
- Dyes and Pigments, v.148, pp 263 - 269
- Pages
- 7
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- Dyes and Pigments
- Volume
- 148
- Start Page
- 263
- End Page
- 269
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/150702
- DOI
- 10.1016/j.dyepig.2017.09.009
- ISSN
- 0143-7208
1873-3743
- Abstract
- A new small molecule acceptor of IDTCN with indaceno[2,1-b:6,5-b’]dithiophene as electron-donating core and CPTCN (2-(6-oxo-5,6-dihydro-4H-cyclopenta[c]thiophen-4-lidene)malononitrile) as electron-withdrawing end-capping group was synthesized and investigated in organic solar cells. The IDTCN shows strong and broad absorption with a high extinction coefficient and appropriate energy levels matching with wide bandgap donor polymer. The best device based on PBT1-EH:IDTCN exhibits an open circuit voltage (Voc) of 0.93 V, a short circuit current (Jsc) of 13.31 mA/cm2, a FF of 0.702, achieving a PCE of 8.69%.
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