PHOTOCONDUCTIVITY OF CDS NANOCLUSTER-DOPED POLYMERS

被引：142

作者：

WANG, Y

HERRON, N

机构：

[1] Central Research and Development, Du Pont Co., Wilmington, DE 19880-0356

来源：

CHEMICAL PHYSICS LETTERS | 1992年 / 200卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(92)87047-S

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report the first demonstration of photoconductivity of a polymer film doped with nanometer-sized semiconductor clusters (quantum dots). In such a composite, the semiconductor cluster acts as a sensitizer for the photogeneration of carriers and the polymer serves as the carrier-transporting medium. In this study we have measured the wavelength and field dependence of the charge generation efficiency of a polyvinylcarbazole film doped with almost-equal-to 16 angstrom CdS clusters and discussed the mechanism for photoconduction. We believe this approach may be extended to include many other semiconductor nanoclusters to create a novel class of photoconductive material.

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页码：71 / 75

页数：5

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