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Efficiency enhancements in non-fullerene acceptor-based organic solar cells by post-additive soaking
- Authors
- Choi, Hoyeon; Lee, Jihoon; Oh, Chang-Mok; Jang, Soyeong; Kim, Hyojung; Jeong, Mun Seok; Park, Sung Heum; Hwang, In-Wook
- Issue Date
- Apr-2019
- Publisher
- Royal Society of Chemistry
- Keywords
- ELECTRON-ACCEPTOR; POLYMER; PERFORMANCE
- Citation
- Journal of Materials Chemistry A, v.7, no.15, pp.8805 - 8810
- Indexed
- SCIE
SCOPUS
- Journal Title
- Journal of Materials Chemistry A
- Volume
- 7
- Number
- 15
- Start Page
- 8805
- End Page
- 8810
- ISSN
- 2050-7488
- Abstract
- An improved efficiency of non-fullerene acceptor-based organic solar cells based on PBDB-T:ITIC-m composites has been obtained by using post-additive soaking (PAS) treatments on pristine BHJ films. The PAS-treated BHJ films show improved carrier dynamics in charge transfer and transport, leading to increased photocurrent and fill factors in the photovoltaic devices, followed by a high power conversion efficiency of 12.3%, which is an increase of 28% compared to that of the control device. We found that this superior performance predominantly resulted from improved exciton dissociation and enhanced electron transport after photoexcitation of the ITIC-m phase.
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Related Researcher
- Jeong, Mun Seok
- COLLEGE OF NATURAL SCIENCES (DEPARTMENT OF PHYSICS)