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Isomerization enabling near-infrared electron acceptors
- Authors
- Luo, Jiasi; Wang, Yang; Liu, Bin; Wu, Ziang; Zhang, Yujie; Tang, Yumin; Chen, Peng; Liao, Qiaogan; Woo, Han Young; Guo, Xugang
- Issue Date
- 18-11월-2019
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- RSC ADVANCES, v.9, no.64, pp.37287 - 37291
- Indexed
- SCIE
SCOPUS
- Journal Title
- RSC ADVANCES
- Volume
- 9
- Number
- 64
- Start Page
- 37287
- End Page
- 37291
- ISSN
- 2046-2069
- Abstract
- An isomerization method was utilized to yield a novel near-infrared nonfullerene acceptor DTA-IC-M. By simply changing the linking fashion between the anthracene and neighboring thiophenes, a remarkable redshift (similar to 170 nm) of absorption was observed from DTA-IC-S to its isomer DTA-IC-M which shows a maximum absorption peak over 800 nm with a narrow bandgap of 1.35 eV. Due to the enhanced photo-to-current response in the near-infrared region, an improved short-circuit current of 12.96 mA cm(-2) was achieved for the DTA-IC-M based OSCs.
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