SPECTROSCOPIC PROPERTIES OF POLY(1,4-PHENYLENEVINYLENE) AND POLY(2-METHOXY-1,4-PHENYLENEVINYLENE)

被引：10

作者：

LEE, GJ ^{[1
]}

YU, SK ^{[1
]}

KIM, D ^{[1
]}

LEE, JI ^{[1
]}

SHIM, HK ^{[1
]}

机构：

[1] KOREA ADV INST SCI & TECHNOL,DEPT CHEM,TAEJON 305701,SOUTH KOREA

来源：

SYNTHETIC METALS | 1995年 / 69卷 / 1-3期

关键词：

D O I：

10.1016/0379-6779(94)02516-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The spectroscopic properties of poly(1,4-phenylene vinylene) [PPV] and poly(2-methoxy-1,4-phenylene vinylene) [PMPV] in thin film were investigated with FT-IR, W-VIS absorption, and photoluminescence. From FT-IR and polarized luminescence spectra of stretched films, we found that luminescences in PPV and PMPV were mainly due to the decay of an intra-chain exciton. Through the temperature dependent photoluminescence spectra, we found that the weakening of the exciton-phonon interaction on cooling results in the fluorescence linewidth narrowing, and there exists a thermally activated barrier in excited state potential well. The origins of the bathochromic shift of emission line on cooling are discussed.

引用

页码：431 / 432

页数：2

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