Photoluminescence of 2,4,6-tris[4-(phenylethynyl)phenyl]-1,3,5-triazines dispersed in polymer films

被引：13

作者：

Iijima, Takayuki ^{[1
]}

Lee, Chi-Han ^{[1
]}

Fujiwara, Yoshiki ^{[1
]}

Shimokawa, Masato ^{[1
]}

Suzuki, Hiroshi ^{[1
]}

Yamane, Kazuto ^{[1
]}

Yamamoto, Takakazu ^{[1
]}

机构：

[1] Tokyo Inst Technol, Chem Res Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

来源：

OPTICAL MATERIALS | 2007年 / 29卷 / 12期

基金：

日本科学技术振兴机构;

关键词：

blended in polymer film; Optical properties; 1,3,5-triazine derivatives;

D O I：

10.1016/j.optmat.2006.10.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Photoluminescence of three types of 1,3,5-triazine derivatives with three kinds of diphenylacetylene side chains was investigated. They showed quantum yields higher than 46% in chloroform, and the Stokes shift (66-114 nm) in chloroform depended on the kind of the diphenylacetylene side chain. In cast films, the three compounds gave a larger Stokes shift of 132-211 nm, suggesting formation of an excimer in the solid. The 1,3,5-triazine derivatives were dispersed in films of polymers such as polystyrene and poly(vinyl acetate), and photoluminescence of the films containing the 1,3,5-triazine derivatives was investigated. Dispersion of the compound in a poly(vinyl acetate) film still gave a rather larger Stokes shift of 128-203 run. In contrast, dispersion in polystyrene reduced the Stokes shift to about 60 nm, revealing an excellent dispersing effect of polystyrene for the compounds. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1782 / 1788

页数：7

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