| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5788505 | Science Bulletin | 2017 | 6 Pages |
Abstract
A carbon-oxygen-bridged ladder-type donor unit (CO5) was invented and prepared via an “intramolecular demethanolization cyclization” approach. Its single crystal structure indicates enhanced planarity compared with the carbon-bridged analogue indacenodithiophene (IDT). Owing to the stronger electron-donating capability of CO5 than IDT, CO5-based donor and acceptor materials show narrower bandgaps. A donor-acceptor (D-A) copolymer donor (PCO5TPD) and an A-D-A nonfullerene acceptor (CO5IC) demonstrated higher performance than IDT-based counterparts, PIDTTPD and IDTIC, respectively. The better performance of CO5-based materials results from their stronger light-harvesting capability and higher charge-carrier mobilities.
Related Topics
Physical Sciences and Engineering
Chemistry
Chemistry (General)
Authors
Zuo Xiao, Fan Liu, Xinjian Geng, Jianqi Zhang, Shizhe Wang, Yujun Xie, Zhen Li, Huai Yang, Yongbo Yuan, Liming Ding,