Development of intrinsically fullerene-compatible polymers: Strategy for developing high performance organic solar cells using a non-halogenated solvent
- Authors
- Jo, Jea Woong; Kim, Yujeong; Ko, Min Jae; Son, Hae Jung
- Issue Date
- 9월-2016
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Organic photovoltaic; Conjugated polymer; Compatibility; Non-halogenated solvent; Morphology
- Citation
- DYES AND PIGMENTS, v.132, pp.103 - 109
- Indexed
- SCIE
SCOPUS
- Journal Title
- DYES AND PIGMENTS
- Volume
- 132
- Start Page
- 103
- End Page
- 109
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/87741
- DOI
- 10.1016/j.dyepig.2016.04.008
- ISSN
- 0143-7208
- 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%. (C) 2016 Published by Elsevier Ltd.
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Collections - Graduate School > KU-KIST Graduate School of Converging Science and Technology > 1. Journal Articles
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