전해중합에 의한 Polyselenophene 박막의 전기 · 광학적 특성에 관한 연구

다국어 초록 (Multilingual Abstract)

Electrical and optical properties of heterocyclic conducting polymer like polyselenophene synthesized by electropolymerization are investigated. In the case of polyselenophene film, remarkable difference of electrical properties in both doped and undoped states are observed. That is, the doped polyselenophene film indicates highly electrical conductiviy, but it`s decrease remarkably after undoping. It has been found that the electrical properties are strongly influenced by the molecular structure doping levels and preparation conditions. Remarkable change of absorption spectrum was observed in polyselenophene film. Absorption induced by a photo excitation are studied in polyselenophene film. The photo induced absorption spectra which are consistent with those of dopant-induced absorptoon at dilute doping levels indicate that, the dominant photo induced charged species are polarons. We have shown that the energy levels of photo indicate polaron and bipolaron are essentially same to those of dopant induced ones and that polarons are domi-nantly photogenerated in electropolymerization prepared polyselenophene film.