Synthesis and characterization of trivalent metal porphyrin with NCS ligand for application in dye-sensitized solar cells |
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| Authors: | Na Xiang Weiping Zhou Shenghui Jiang Lijun Deng Yijiang Liu Zhuo Tan Bin Zhao Ping Shen Songting Tan |
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| Affiliation: | a College of Chemistry, Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Xiangtan 411105, PR China
b Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province, Xiangtan University, Xiangtan 411105, PR China |
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| Abstract: | Two novel trivalent metal porphyrin dyes, PMn-HT-SCN and PGa-HT-SCN, were designed, synthesized and firstly applied in dye-sensitized solar cells (DSSCs). These two dyes possess porphyrin donor modified with manganese (III) and gallium (III) as coordination metal and NCS as the second ligand, cyanoacrylic acid as electron-accepting moiety and 4-hexylthiophene as π-spacers. Each of the porphyrin showed different adsorption behavior and saturated coverage on the TiO2 surface. Between the two dyes, the PMn-HT-SCN-based DSSCs afforded the best photovoltaic performance: a short-circuit photocurrent density (Jsc) of 4.32 mA/cm2, an open-circuit photovoltage (Voc) of 0.61 V and a fill factor (FF) of 0.58, corresponding to a solar-to-electricity conversion efficiency of 1.53% under 100 mW/cm2 irradiation. |
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| Keywords: | Porphyrin derivative Manganese (III) Gallium (III) Dye-sensitized solar cells Photovoltaic performances |
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