Recent advances in white organic light emitting diodes with a single emissive dopant

被引:27
作者
Tsuboi, Taiju [1 ]
机构
[1] Kyoto Sangyo Univ, Fac Engn, Kyoto 6038555, Japan
关键词
Lighting; Organic light emitting diode; Electroluminescence; Photoluminescence; Excimer; Exciplex; CHROMATICITY-TUNING LAYER; ENERGY-TRANSFER; QUANTUM EFFICIENCY; EXCIPLEX EMISSION; HOST MATERIALS; COMPLEXES; DEVICES; TRIS-(8-HYDROXYQUINOLINE)ALUMINUM; COMPOUND; EXCIMER;
D O I
10.1016/j.jnoncrysol.2010.05.034
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Conventional multi-layer white organic light emitting diode (OLED) devices have a structure of stacked three primary color emissive layers (EMLs) with at least three emissive dopants. This method induces different degradation rates and phase segregation among different dopants and differential color aging. OLEDs with a single emissive dopant material in an EML are employed to avoid these disadvantages. We review recent progress and development of six different methods for white OLEDs with a single emissive dopant, i.e., using (1) simultaneous emission from the host material in the EML, (2) excimer, (3) mixed-ligand molecule, (4) phosphor-sensitized fluorescent material, (5) exciplex, and (6) dual emission using excimer and exciplex. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:1919 / 1927
页数:9
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