Temperature-dependent electroluminescence from (Eu, Gd) coordination complexes

被引：63

作者：

Zhang, XM ^{[1
]}

Sun, RG ^{[1
]}

Zheng, QB ^{[1
]}

Kobayashi, T ^{[1
]}

Li, WL ^{[1
]}

机构：

[1] CHINESE ACAD SCI,CHANGCHUN INST PHYS,CHANGCHUN 130021,PEOPLES R CHINA

来源：

APPLIED PHYSICS LETTERS | 1997年 / 71卷 / 18期

关键词：

D O I：

10.1063/1.119339

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Light emission from single-layered electroluminescent devices is described in which (Eu, Gd) coordination complexes, (Eu0.1Gd0.9)(TTA)(3)(TPPO)(2), and electron transport material oxadiazole derivative, 2-(4-biphenyl)-5-(4-t-butylphenylyl)-1,3,4-oxadiazole, are dispersed in a hole-transporting host polymer poly(N-vinylcarbazole) film. The color of the emitted electroluminescence changes smoothly from green-white to red with temperature varying from 77 to 300 K. This phenomenon is discussed in terms of temperature dependent yields of phosphorescence from the triplet state of the Gd and Eu chelates and the intermolecular energy transfer from Gd-chelate to Eu-chelate cages. (C) 1997 American Institute of Physics.

引用

页码：2596 / 2598

页数：3

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