Phase separation of excimer-forming fluorescent dyes and amorphous polymers: A versatile mechanism for sensor applications

被引：96

作者：

Crenshaw, BR ^{[1
]}

Weder, C ^{[1
]}

机构：

[1] Case Western Reserve Univ, Dept Macromol Sci & Engn, Cleveland, OH 44106 USA

来源：

ADVANCED MATERIALS | 2005年 / 17卷 / 12期

关键词：

D O I：

10.1002/adma.200401688

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A temperature-sensing scheme that relies on kinetically trapping molecular mixtures of a sensor molecule and amorphous host materials in a thermodynamically unstable state is introduced. Subjecting the blends to temperatures above their glass transition leads to irreversible changes of their photoluminescence emission spectra due to phase separation and excimer formation, as shown in the Figure for blend films before (left) and after annealing at 150 Degrees C for 42 h (right).

引用

页码：1471 / 1476

页数：6

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