Journal
FRONTIERS IN CHEMISTRY
Volume 8, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fchem.2020.00329
Keywords
all-small-molecule organic solar cell; small molecule donor; small molecule acceptor; high open-circuit voltage; energy level control
Categories
Funding
- NSFC of China [51773095]
- Research Fund of Jining University [2019BSZX01]
- Young Innovative Talents Introduction & Cultivation Program for Colleges and Universities of Shandong Province: Innovative Research Team on Optoelectronic Functional Materials
Ask authors/readers for more resources
A new small molecule donor with an acceptor-donor-acceptor (A-D-A) structure, namely DRTB-FT, has been designed and synthesized for all-small-molecule organic solar cells (ASM-OSCs). By introducing fluorine atoms on the thienyl substituent of the central benzodithiophene unit, DRTB-FT shows a low-lying highest occupied molecular orbital (HOMO) energy level of -5.64 eV. Blending with an A-D-A type acceptor F-2Cl, DRTB-FT based ASM-OSCs gave a power conversion efficiency (PCE) of 7.66% with a high open-circuit voltage (V-oc) of 1.070 V and a low energy loss of 0.47 eV. The results indicate that high V-oc of ASM-OSC devices can be obtained through careful donor molecular optimization.
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