Optical Properties of Soluble Polythiophene for Flexible Solar Cell

다국어 초록 (Multilingual Abstract)

Polythiophene-TiO2 composite was synthesized with different molar ratios of thiophene and titaniumisopropoxide (Ti(OPr)4) for flexible solar cell application as a flexible electrode or an active material. The Ti(Opr)4 was stabilized by thiophene. The thiophene was polymerized by ferric chloride catalyst. The synthesized polythiophene exhibited strong UV-visible absorption in the range of the wavelength shorter than 500 nm. Field emission scanning electron microscope (FESEM) image of low concentration of TiO2 film showed smooth surface. However, FESEM image of high concentration of TiO2 film exhibited relatively rough surface.
Polythiophene concentration dependent strong photoluminescence quenching of surfrhodamine-B was observed.

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