Green exciplex emission from a bilayer light-emitting diode containing a rare earth ternary complex

被引：21

作者：

Gao, DQ

Huang, YY

Huang, CH ^{[1
]}

Li, FY

Huang, L

机构：

[1] Univ Hong Kong, Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Hong Kong, Hong Kong, Peoples R China

[2] Joint Lab Rare Earth Mat & Bioinorgan Chem, Beijing 100871, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 350卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(01)01269-6

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：

A bilayer organic light-emitting diode using a blue-fluorescent yttrium complex, tris(1-phenyl-3-methyl-4-isobutyryl-5-pyrazolone)-(2.2'-dipyridyl) yttrium. [Y(PMIP)(3)(Bipy)] (YPB) as an emitting material and poly(N-vinylcarbazole) (PVK) as a hole-transporting material emitted bright green light instead of blue light. It was attributed to the exciplex formation at the solid interface between the PVK and YPB layers, which was demonstrated by the measurement of the absorption, photoluminescence (PL) and photoluminescence excitation (PLE) spectra of the mixture of PVK and YPB (molar ratio 1:1). The device exhibited a maximum luminance of 177 cd/M-2 and a peak power efficiency of 0.02 lm/W. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：206 / 210

页数：5

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