苝二酰亚胺/聚噻吩复合膜的光电性能研究  

PHOTOELECTRIC PROPERTIES OF PHT/PDI COMPOSITE FILMS

作　　者：周峰[1] 封伟 焉学佳[1] 王晓工[1] 

机构地区：[1]清华大学材料科学与工程研究院化工系高分子研究所,北京100084

出　　处：《高分子学报》2005年第2期281-284,共4页Acta Polymerica Sinica

基　　金：国家自然科学基金资助项目 (基金号 60 3 0 70 0 1)

摘　　要：Photovoltaic properties of blend composites, composed of N,N′ didodecy1 3,4,9,10 perylene biscarboximide (PDI) and a soluble conductive polymer poly(3 hexylthiophene) (PHT), are reported. PDI can form the interpenetrating network structure with PHT chains, as evidenced in the UV Vis spectrum. The investigation of the photoluminescence (PL) spectra revealed that PL of PHT was quenched when it was blended with PDI. The photovoltaic devices using PHT as both the sensitizer and hole conductor, and PDI films as the electron conductor were prepared to estimate the photovoltaic performance of the blend films. An improvement of conversion efficiency in the blending cells compared with that of the pure PHT cells was observed. Spectral properties and current voltage( I\|V) characteristics of the PHT/PDI composite films showed that the perylene diimide dopant can improve the photovoltaic performance of PHT films significantly through the increase of visible light absorption, exciton dissociation, diffusion and transportation.Photovoltaic properties of blend composites, composed of N,N'-didodecyl-3, 4, 9, 10-perylenebiscarboximide (PDI) and a soluble conductive polymer poly (3-hexylthiophene) (PHT), are reported. PDI can form the interpenetrating network structure with PHT chains, as evidenced in the UV-Vis spectrum. The investigation of the photoluminescence (PL) spectra revealed that PL of PHT was quenched when it was blended with PDI. The photovoltaic devices using PHT as both the sensitizer and hole conductor, and PDI films as the electron conductor were prepared to estimate the photovoltaic performance of the blend films. An improvement of conversion efficiency in the blending cells compared with that of the pure PHT cells was observed. Spectral properties and current-voltage (I-V) characteristics of the PHT/PDI composite films showed that the perylene diimide dopant can improve the photovoltaic performance of PHT films significantly through the increase of visible light absorption, exciton dissociation, diffusion and transportation.

关 键 词：性能研究 二酰亚胺 复合膜 聚噻吩 导电高分子材料 有机光电材料 光电转换效率 商业应用价值 导电聚合物 半导体特性 光稳定性 光谱吸收 可加工性 太阳电池 工作者 柔韧性 导电性 

分 类 号：O633[理学—高分子化学]