聚苯胺-富勒烯复合膜的光电响应

Electrical and Optical Properties of PANI-C60 Composite Films

通过溶液共混方法制备了聚苯胺(PANI)-富勒烯复合膜,并用IR、XRD、UV-Vis等技术对其进行表征红外光谱表明聚苯胺与C_(60)之间存在相互作用且表现为掺杂态聚苯胺红外谱图样.X射线衍射表明复合体材料的结晶性能增强.光致发光谱表明聚苯胺与C_(60)分子之间存在有效光诱导电荷分离现象.光电响应实验表明复合体薄膜的光吸收增强,光电流增大,说明聚苯胺-富勒烯复合膜受光照射后发生了光诱导电荷分离现象,C_(60)掺杂聚苯胺有助于改善光伏特性.

Polyaniline (PANI)-C-60 Composites film was prepared by liquid-state mixture of PANI and C-60 solutions. The interaction between polyaniline emerald base and C-60 were investigated and explained according to the results of FTIR spectroscopy. The improvement of crystallinity of PANI-C-60 composites were evaluated by using X-ray diffraction spectra (XRD). The mechanism of charge transport in these composites was also studied. The photoconductivity of PANI-C-60 composites film was enhanced markedly and photoluminescence spectra (PL) intensity decreased greatly, which take the photoinduced charge transfer between PANI and C-60 into consideration.