Conformational phase transition in a high-efficiency near-ultraviolet electroluminescent diarylpolysilane

被引：5

作者：

Bleyl, I ^{[1
]}

Ebata, K ^{[1
]}

Hoshino, S ^{[1
]}

Furukawa, K ^{[1
]}

Suzuki, H ^{[1
]}

机构：

[1] NTT, Basic Res Labs, Kanagawa 2430198, Japan

来源：

SYNTHETIC METALS | 1999年 / 105卷 / 01期

关键词：

electroluminescence; diarylpolysilanes; structural phase transition; conformational change; polymer light-emitting diodes; near-ultraviolet light emission;

D O I：

10.1016/S0379-6779(99)00038-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the observation of a structural phase transition in a diarylpolysilane, poly[bis( p-n-butylphenyl)silane] (PBPS), which was recently shown to emit high-efficiency room-temperature electroluminescence (EL) in the near-ultraviolet region. Spectroscopic and calorimetric experiments have revealed that this structural phase transition accompanies a conformational change in the Si-backbones of PBPS from the disorder form (lower temperature form) to the trans-planar form (higher temperature form). The spectroscopic changes induced by this structural phase transition are discussed in relation to the EL characteristics of PBPS, and found to have positive effects on them. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：17 / 22

页数：6

共 14 条

[1]

FURUKAWA K, IN PRESS MOL CRYST L

[2] Electroluminescent characteristics of one-dimensional silicon chains in dialkyl polysilanes [J].