Processing and optical properties of spin-coated polystyrene films containing CdS nanoparticles

被引：23

作者：

Chevreau, A ^{[1
]}

Phillips, B ^{[1
]}

Higgins, BG ^{[1
]}

Risbud, SH ^{[1
]}

机构：

[1] UNIV CALIF DAVIS,DEPT CHEM ENGN & MAT SCI,DAVIS,CA 95616

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1996年 / 6卷 / 10期

关键词：

D O I：

10.1039/jm9960601643

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：

The processing, microstructure and optical properties of CdS semiconductor nanoparticles sequestered in spin-coated polymer films has been investigated. A simple processing protocol has been developed to form thin film structures consisting of CdS nanoparticles dispersed in the interstices created by a close-packed stacking of polystyrene spheres. We have decoupled the synthesis of the CdS nanoparticles from the polymer matrix by synthesizing a colloidal suspension of CdS nanoparticles in water that is compatible with a polymer latex water suspension. In this way we are able to vary the CdS concentration in the polymer him over a wide range and create concentrations of quantum dot particles two orders of magnitude larger than those reported in previous work. In contrast to the conventional reaction synthesis of nanoparticles in a polymer matrix, the present method is versatile enough to create several useful thin film polymer-semiconductor structures using a straightforward, environment-friendly spin-coating technology.

引用

页码：1643 / 1647

页数：5

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