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An investigation of the role the donor moiety plays in modulating the efficiency of 'donor-pi-acceptor-pi-acceptor' organic DSSCs
- Park, Kwang-Won;
- Serrano, Luis A.;
- Ahn, Sungwoo;
- Baek, Myung Hoon;
- Wiles, Alan A.;
- ... Hong, Jongin;
- 외 1명
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24초록
Three 'D-pi-A-pi-A' based dyes have been synthesized featuring MeO-, MeS- and Me2N- as donor residues and benzothiadiazole and cyanoacrylic acid residues as acceptor units. UV-vis spectroscopy, solution electrochemistry and DFT modelling indicated that the Me2N- residue has the most significant effect on optical and redox properties of a photosensitizer. DSSCs with the Me2N- functionalized dye gave the highest power conversion efficiency of the series (eta = 5.61%), presumably due to the better donor ability of this unit, which promotes more effective intramolecular charge transfer (ICT) characteristics. (C) 2017 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license.
키워드
Dye-sensitized solar cell; Organic photosensitizer; Donor; Benzothiadiazole; SENSITIZED SOLAR-CELLS; TRIPHENYLAMINE-BASED DYES; ELECTROCHEMICAL PROPERTIES; MOLECULAR-STRUCTURES; BUILDING-BLOCKS; DESIGN; PERFORMANCE; RESONANCE; UNITS
- 제목
- An investigation of the role the donor moiety plays in modulating the efficiency of 'donor-pi-acceptor-pi-acceptor' organic DSSCs
- 저자
- Park, Kwang-Won; Serrano, Luis A.; Ahn, Sungwoo; Baek, Myung Hoon; Wiles, Alan A.; Cooke, Graeme; Hong, Jongin
- 발행일
- 2017-02
- 유형
- Article
- 저널명
- Tetrahedron
- 권
- 73
- 호
- 8
- 페이지
- 1098 ~ 1104
- 언어
- ENG
- 출판사
- PERGAMON-ELSEVIER SCIENCE LTD
- 발행국가
- 영국
- 분량
- 7 페이지
- ISSN
- P 0040-4020