Development of intrinsically fullerene-compatible polymers: Strategy
for developing high performance organic solar cells using a nonhalogenated
solvent
- Title
- Development of intrinsically fullerene-compatible polymers: Strategy
for developing high performance organic solar cells using a nonhalogenated
solvent
- Authors
- 조제웅; 김유정; 고민재; 손해정
- Keywords
- organic solar cell; polymer
- Issue Date
- 2016-09
- Publisher
- Dyes and pigments
- Citation
- VOL 132, 103-109
- Abstract
- Because large amounts of solvents are needed for large-scale fabrication of organic solar cells, it is important to develop solar cell processes using environmentally friendly solvents. In the research, we introduce a new approach to control the morphology of polymer:PC71BM blend films by an additive-free and non-halogenated solvent system. Incorporation of a fullerene-compatible o-dichlorobenzene group as the side chain of polythienothiophene-co-benzodithiophene derivatives importantly enhances the compatibility of the polymer with PC71BM and improves the nano-scale morphology of the blend film processed from o-xylene. We studied the effect of introducing the o-dichlorobenzene group onto the polymer on the morphology, charge mobility, and solar cell performances as comparing the cases of the polymer before modification. The developed polymer:PC71BM-based solar cells prepared using o-xylene show a remarkably improved performance with a PCE of 6.07%.
- URI
- http://pubs.kist.re.kr/handle/201004/58884
- ISSN
- 01437208
- Appears in Collections:
- KIST Publication > Article
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