Electrochemical Synthesis and Photovoltaic Properties of Polythiothene/CdSe Double Layers Electrode

Li Ping Hao; Hai Jun Niu; Li Na Hao; Xu Duo Bai; Wen Wang

doi:10.4028/www.scientific.net/AMR.399-401.973

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Electrochemical Synthesis and Photovoltaic Properties of Polythiothene/CdSe Double Layers Electrode

Abstract:

The electrochemical deposition of thiophene and CdSe on TiO₂/ITO by cyclic voltammetry(CV) technique was carried out to study the influence of conditions on the preparation and photophysical performance of poly(thiophene) (PTh)/CdSe double layers electrode. The chemical structure of the obtained polymer was characterized by FT-IR, Raman, X-ray diffraction, UV-vis spectroscopy. The morphology was observed by electronic scanning microscope (SEM) which showed nano-grain shape. Finally the photovoltaic performance of the solar cell which was composed of PTh/CdSe/TiO2 composite film used as working electrode, Pt used as counter electrode was investigated. And mechanism of photogenerated electron of PTh/CdSe electrode was proposed. The results showed that TiO₂ electrode modified by PTh/CdSe composite film had good response on irradiation, which indicated the PTh/CdSe was promising dye in solar cell.