Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 11, Issue 34, Pages 31119-31128Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b09692
Keywords
backbone coplanarity; nonhalogenated solvent; noncovalent interaction; nonfullerene organic solar cells; organic field-effect transistors
Funding
- National Natural Science Foundation of China [61804073]
- Basic Research Fund of Shenzhen City [JCYJ20170817104319061]
- China Postdoctoral Science Foundation [2018M631727]
- National Science Foundation of China [21774055]
- Shenzhen Basic Research Fund [JCYJ20170817105905899]
- Shenzhen Key Lab funding [ZDSYS201505291525382]
- Natural National Science Foundation of China [201805128]
- NRF of Korea [2016M1A2A2940911, 2015M1A2A2057506]
Ask authors/readers for more resources
Halogenated solvents are prevailingly used in the fabrication of nonfullerene organic solar cells (NF-OSCs) at the current stage, imposing significant restraints on their practical applications. By copolymerizing phthalimide or thieno[3,4-c]pyrrole-4,6-dione (TPD) with 1,4-di(3-alkoxy-2-thienyl)-2,5-difluorophenylene (DOTFP), which features intramolecular noncovalent interactions, the backbone planarity of the resulting DOTFP-based polymers can be effectively tuned, yielding distinct solubilities, aggregation characters, and chain packing properties. Polymer DOTFP-PhI with a more twisted backbone showed a lower degree of aggregation in solution but an increased film crystallinity than polymer DOTFP-TPD. An organic thin-film transistor and NF-OSC based on DOTFP-PhI, processed with a nonhalogenated solvent, exhibited a high hole mobility up to 1.20 cm(2) V-1 s(-1) and a promising power conversion efficiency up to 10.65%, respectively. The results demonstrate that DOTFP is a promising building block for constructing wide bandgap polymers and backbone coplanarity tuning is an effective strategy to develop high-performance organic semiconductors processable with a nonhalogenated solvent.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available