Photoluminescence of ZnS-PVK nanocomposites confined in ethylenediamine modified MCM-41

被引：12

作者：

Xi, HG ^{[1
]}

Qian, XF ^{[1
]}

Yin, J ^{[1
]}

Bian, LJ ^{[1
]}

He, R ^{[1
]}

Zhu, ZK ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Technol, Natl Key Lab Composite Mat, Shanghai 200240, Peoples R China

来源：

MATERIALS LETTERS | 2003年 / 57卷 / 18期

关键词：

MCM-41; ZnS; poly(N-vinylcarbazole); nanocomposite; photoluminescence;

D O I：

10.1016/S0167-577X(02)01346-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

PVK-ZnS nanocomposites were synthesized in ethylenediamine grafted MCM-41. The content of ZnS in MCM-41 was determined by chemical analysis and ICP atomic emission spectrophotometer, and the photoluminescence of PVK-ZnS in MCM-41 was also investigated. When PVK-ZnS was confined in ethylenediamine modified MCM-41, an emission peak at 468 nm was observed. Further analysis indicated that the emission would be attributed to the exciplex of excited state PVK molecules and ground state ZnS clusters. The ethylenediamino groups and the mesopores in MCM-41 played important roles in the exciplex emission from PVK and ZnS nanocomposites. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：2657 / 2661

页数：5

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