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Photoconductivity of novel poly(N-vinyl)-3-[p-nitrophenylazo]carbazole/CdS-nanoparticle polymer composite

Photoconductivity of novel poly(N-vinyl)-3-[p-nitrophenylazo]carbazole/CdS-nanoparticle polymer composite
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摘要 The photoconductive characteristic of the inorganic/organic hybridized polymer system is reported, in which a novel bi-functional photorefractive (PR) poly(N-vinyl)-3-[p-nitrophenylazo]carbazole (PVNPAK) serves as a polymeric charge-transporting and second-order nonliner optical matrix and quantum dots composed of surface passivated cadmium sulfide serve as a charge-generation sensitizer. The hybrid PVNPAK/CdS-nanoparticles polymer composites with different mass ratio of CdS to PVNPAK were prepared. The generation of photocurrent on illumination and photoconductive properties of the PVNPAK/CdS-nanoparticles polymer composites were studied. The results show that the addition of CdS nanoparticle as a photosensitizer can enhance the photoconductivity of the PVNPAK significantly because of the properties of the high quantum efficiency of photosensitization and high charge transport to conducting polymer. The photoconductive characteristic of the inorganic/organic hybridized polymer system is reported, in which a novel bi-functional photorefractive （PR） poly（N-vinyl）-3-[p-nitrophenylazo]carbazole （PVNPAK） serves as a polymeric charge-transporting and second-order nonliner optical matrix and quantum dots composed of surface passivated cadmium sulfide serve as a charge-generation sensitizer. The hybrid PVNPAK/CdS-nanoparticles polymer composites with different mass ratio of CdS to PVNPAK were prepared. The generation of photocurrent on illumination and photoconductive properties of the PVNPAK/CdS-nanoparticles polymer composites were studied. The results show that the addition of CdS nanoparticle as a photosensitizer can enhance the photoconductivity of the PVNPAK significantly because of the properties of the high quantum efficiency of photosensitization and high charge transport to conducting polymer.
作者 丁莉芸 姜德生 黄俊 戴磊 刘诚 王军涛 李斌
机构地区 Key Laboratory of Fiber Optic Sensing Technology and Information Processing Key Laboratory of Fiber Optic Sensing Technology and Information Processing
出处 《中国有色金属学会会刊：英文版》 CSCD 2006年第B01期191-194,共4页 Transactions of Nonferrous Metals Society of China
基金 Project(60537050) supported by the National Nature Science Foundation of China Project supported by the Opening Fund of Key Laboratory of Nonferrous Materials and Processing Technology.
关键词 光电导性 聚乙烯基对硝基苯偶氮咔唑 CDS纳米粒子 无机/有机杂化聚合物体系 复合材料 photoconductivity inorganic/organic hybridization CdS nanoparticle poly（N-vinyl）-3-[p-nitrophenylazo]carbazole
分类号 TB383.1 [一般工业技术—材料科学与工程]
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参考文献12

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中国有色金属学会会刊：英文版
2006年 第B01期

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