Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 59, Issue 48, Pages 21683-21692Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202009272
Keywords
double-cable conjugated polymers; miscibility; naphthalene diimide; phase separation; single-component organic solar cells
Categories
Funding
- MOST [2018YFA0208504, 2017YFA0204702]
- NSFC of China [51773207, 21574138, 51603209, 91633301, 5197030531]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB12030200]
- Fundamental Research Funds for the Central Universities [XK1802-2]
- Jiangxi Provincial Department of Science and Technology [20192ACB20009]
- Peiyang Scholar Program of Tianjin University
- King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) [OSR-2018-CARF/CCF-3079]
Ask authors/readers for more resources
A record power conversion efficiency of 8.40 % was obtained in single-component organic solar cells (SCOSCs) based on double-cable conjugated polymers. This is realized based on exciton separation playing the same role as charge transport in SCOSCs. Two double-cable conjugated polymers were designed with almost identical conjugated backbones and electron-withdrawing side units, but extra Cl atoms had different positions on the conjugated backbones. When Cl atoms were positioned at the main chains, the polymer formed the twist backbones, enabling better miscibility with the naphthalene diimide side units. This improves the interface contact between conjugated backbones and side units, resulting in efficient conversion of excitons into free charges. These findings reveal the importance of charge generation process in SCOSCs and suggest a strategy to improve this process: controlling miscibility between conjugated backbones and aromatic side units in double-cable conjugated polymers.
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