Blue light-emitting devices based on glassy tetraphenylsilane molecular materials

被引：3

作者：

Chan, LH ^{[1
]}

Yeh, HC ^{[1
]}

Chen, CT ^{[1
]}

机构：

[1] Acad Sinica, Inst Chem, Taipei 11529, Taiwan

来源：

ORGANIC LIGHT-EMITTING MATERIALS AND DEVICES V | 2002年 / 4464卷

关键词：

blue light-emitting; glass transition temperature; tetraphenylsilane; oxadiazole; molecular material;

D O I：

10.1117/12.457485

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Tetraphenylsilane derivatives attached with one to four of N,N-diphenylaninooxadiazole (TPAOXD) blue fluorescent moieties, namely Si(PhTPAOXD)(4), PhSi(PhTPAOXD)(3), Ph2Si(PhTPAOXD)(2), and Ph3Si(PhTPAOXD), were synthesized and characterized. Tetraphenylsilane core structure provides an effective molecular skeleton for inhibiting the crystallization of the material. Very bright blue electroluminescence (> 20,000 cd/m(2)) was observed for a trilayer device with configuration of ITO/NPB/Ph3Si(PhTPAOXD)/Alq(3)/Mg:Ag. The electroluminescence of the device, in terms of emission wavelength and chromaticity, is highly dependent on the thickness of emitting layer. The current-voltage-electroluminescence characteristics of the devices are described.

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收藏

页码：265 / 272

页数：8

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