An efficient metal-free sensitizer for dye-sensitized solar cells |
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| Authors: | Ming-Hsiu TsaoTzi-Yi Wu Hong-Paul WangI-Wen Sun Shyh-Gang SuYuan-Chung Lin Cheng-Wen Chang |
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| Affiliation: | a Department of Chemistry, National Cheng Kung University, Tainan, Taiwanb Department of Polymer Materials, Kun Shan University, Tainan 71003, Taiwanc Department of Environmental Engineering, National Cheng Kung University, Tainan, Taiwand Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 804, Taiwan |
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| Abstract: | A novel metal-free organic dye consisting of a phenothiazine donor, a 3,4-ethylenedioxythiophene bridge, and a cyanoacrylate acceptor is synthesized and its optical, electrochemical and photovoltaic properties are characterized. A solar cell employing the metal-free dye exhibits a maximum solar energy to an electricity conversion efficiency of 6.72% under AM 1.5 solar simulator (100 mW cm− 2). The results suggest that dye based on a phenothiazine donor and 3,4-ethylenedioxythiophene π-spacer is a promising candidate for high performance dye-sensitized solar cells. |
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| Keywords: | Organic dyes Absorption Photosensitizer Photovoltaic material |
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