Dithiafulvenyl unit as a new donor for high-efficiency dye-sensitized solar cells: Synthesis and demonstration of a family of metal-free organic sensitizers

Kunpeng Guo; Keyou Yan; Xiaoqing Lu; Yongcai Qiu; Zhike Liu; Jianwei Sun; Feng Yan; Wenyue Guo; Shihe Yang

doi:10.1021/ol300477b

Dithiafulvenyl unit as a new donor for high-efficiency dye-sensitized solar cells: Synthesis and demonstration of a family of metal-free organic sensitizers

Kunpeng Guo, Keyou Yan, Xiaoqing Lu, Yongcai Qiu, Zhike Liu, Jianwei Sun, Feng Yan, Wenyue Guo, Shihe Yang

Research output: Journal article publication › Journal article › Academic research › peer-review

121 Citations (Scopus)

Abstract

This work identifies the dithiafulvenyl unit as an excellent electron donor for constructing D-π-A-type metal-free organic sensitizers of dye-sensitized solar cells (DSCs). Synthesized and tested are three sensitizers all with this donor and a cyanoacrylic acid acceptor but differing in the phenyl (DTF-C1), biphenyl (DTF-C2), and phenyl-thiopheneyl-phenyl π-bridges (DTF-C3). Devices based on these dyes exhibit a dramatically improved performance with the increasing π-bridge length, culminating with DTF-C3 in η = 8.29% under standard global AM 1.5 illumination.

Original language	English
Pages (from-to)	2214-2217
Number of pages	4
Journal	Organic Letters
Volume	14
Issue number	9
DOIs	https://doi.org/10.1021/ol300477b
Publication status	Published - 4 May 2012

ASJC Scopus subject areas

Biochemistry
Physical and Theoretical Chemistry
Organic Chemistry

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10.1021/ol300477b

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title = "Dithiafulvenyl unit as a new donor for high-efficiency dye-sensitized solar cells: Synthesis and demonstration of a family of metal-free organic sensitizers",

abstract = "This work identifies the dithiafulvenyl unit as an excellent electron donor for constructing D-π-A-type metal-free organic sensitizers of dye-sensitized solar cells (DSCs). Synthesized and tested are three sensitizers all with this donor and a cyanoacrylic acid acceptor but differing in the phenyl (DTF-C1), biphenyl (DTF-C2), and phenyl-thiopheneyl-phenyl π-bridges (DTF-C3). Devices based on these dyes exhibit a dramatically improved performance with the increasing π-bridge length, culminating with DTF-C3 in η = 8.29% under standard global AM 1.5 illumination.",

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Dithiafulvenyl unit as a new donor for high-efficiency dye-sensitized solar cells: Synthesis and demonstration of a family of metal-free organic sensitizers. / Guo, Kunpeng; Yan, Keyou; Lu, Xiaoqing et al.
In: Organic Letters, Vol. 14, No. 9, 04.05.2012, p. 2214-2217.

Research output: Journal article publication › Journal article › Academic research › peer-review

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AU - Guo, Kunpeng

AU - Yan, Keyou

AU - Lu, Xiaoqing

AU - Qiu, Yongcai

AU - Liu, Zhike

AU - Sun, Jianwei

AU - Yan, Feng

AU - Guo, Wenyue

AU - Yang, Shihe

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AB - This work identifies the dithiafulvenyl unit as an excellent electron donor for constructing D-π-A-type metal-free organic sensitizers of dye-sensitized solar cells (DSCs). Synthesized and tested are three sensitizers all with this donor and a cyanoacrylic acid acceptor but differing in the phenyl (DTF-C1), biphenyl (DTF-C2), and phenyl-thiopheneyl-phenyl π-bridges (DTF-C3). Devices based on these dyes exhibit a dramatically improved performance with the increasing π-bridge length, culminating with DTF-C3 in η = 8.29% under standard global AM 1.5 illumination.

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DO - 10.1021/ol300477b

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JO - Organic Letters

JF - Organic Letters

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Dithiafulvenyl unit as a new donor for high-efficiency dye-sensitized solar cells: Synthesis and demonstration of a family of metal-free organic sensitizers

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