Improving photo-stability of conjugated polymer MEH-PPV embedded in solid matrices by purification of the matrix polymer

被引：11

作者：

Tian, Yuxi ^{[1
]}

Sheinin, Vladimir ^{[2
]}

Kulikova, Olga ^{[2
]}

Mamardashvili, Nugzar ^{[2
]}

Scheblykin, Ivan G. ^{[1
]}

机构：

[1] Lund Univ, SE-22100 Lund, Sweden

[2] Russian Acad Sci, GA Krestov Inst Solut Chem, Ivanovo 153045, Russia

来源：

CHEMICAL PHYSICS LETTERS | 2014年 / 599卷

基金：

瑞典研究理事会;

关键词：

SINGLE-MOLECULE SPECTROSCOPY; ROOM-TEMPERATURE; FLUORESCENCE; MICROSCOPY; LASERS; CHAINS;

D O I：

10.1016/j.cplett.2014.03.030

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：

For single molecule spectroscopy (SMS), molecules under study are usually immobilized in a polymer matrix e. g. poly(methyl methacrylate). We show a very significant improvement of the conjugated polymer MEH-PPV photo-stability and decrease of the luminescence impurities concentration when the matrix is purified. We identify benzoyl peroxide (a common radical initiator) as a possible oxidizing agent which residuals in the polymer matrix destroy MEH-PPV. These results show that purification and selection of a matrix obtained by radical-free synthetic technique are of great importance for SMS as well as other technologies using polymer matrices as hosts for light-emitting materials. (C) 2014 Elsevier B. V. All rights reserved.

引用

页码：142 / 145

页数：4

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