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Metal-free organic chromophores featuring an ethynyl-thienothiophene linker with an n-hexyl chain for translucent dye-sensitized solar cells
- Lim, Dong-Suk;
- Park, Kwang-Won;
- Wiles, Alan A.;
- Hong, Jongin
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3초록
We report the simple synthesis of two organic chromophores featuring an ethynyl-thienothiophene linker with an n-hexyl chain (CSD-03 and CSD-04), their optical and electrochemical properties, and their use as photosensitizers in dye-sensitized solar cells (DSSCs). Our theoretical and experimental studies show that adding the second thienothiophene allows for narrowing the bandgap of the molecule and thus ensuring more light harvesting in the visible region. The efficiencies of both CSD-03 (5.46 ± 0.03%) and CSD-04 (5.20 ± 0.03%) are comparable to that of N719 (5.92 ± 0.01%) in translucent DSSCs fabricated with 5 μm-thick TiO2 photoanodes. © 2019 by the authors.
키워드
Computational chemistry; Dye-sensitized solar cell; Ethynyl-thienothiophene; Photosensitizer; Chromophores; Computational chemistry; Photosensitizers; Solar cells; Titanium dioxide; Ethynyl; Light-harvesting; Metal free; Organic chromophores; Photo-anodes; Thienothiophenes; Visible region; Dye-sensitized solar cells
- 제목
- Metal-free organic chromophores featuring an ethynyl-thienothiophene linker with an n-hexyl chain for translucent dye-sensitized solar cells
- 저자
- Lim, Dong-Suk; Park, Kwang-Won; Wiles, Alan A.; Hong, Jongin
- 발행일
- 2019-06
- 유형
- Article
- 저널명
- Materials
- 권
- 12
- 호
- 11
- 언어
- ENG
- 출판사
- MDPI AG
- 발행국가
- 스위스
- ISSN
- P 1996-1944