White organic light-emitting diodes: Status and perspective

被引:529
作者
Reineke, Sebastian [1 ]
Thomschke, Michael [2 ]
Luessem, Bjoern [2 ]
Leo, Karl [2 ]
机构
[1] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA
[2] Tech Univ Dresden, Inst Angew Photophys, D-01062 Dresden, Germany
关键词
SINGLE-POLYMER SYSTEM; SIMULTANEOUS 2-COLOR EMISSION; EXTERNAL QUANTUM EFFICIENCY; HIGHLY CONDUCTIVE POLYMER; ENHANCED HOLE INJECTION; VAPOR-PHASE DEPOSITION; ELECTROPHOSPHORESCENT DEVICES; ELECTROLUMINESCENT DEVICES; ENERGY-TRANSFER; TRANSIENT ANALYSIS;
D O I
10.1103/RevModPhys.85.1245
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
White organic light-emitting diodes (OLEDs) are ultrathin, large-area light sources made from organic semiconductor materials. Over the past decades, much research has been spent on finding suitable materials to realize highly efficient monochrome and white OLEDs. With their high efficiency, color tunability, and color quality, white OLEDs are emerging as one of the next-generation light sources. In this review, the physics of a variety of device concepts that have been introduced to realize white OLEDs based on both polymer and small-molecule organic materials are discussed. Owing to the fact that about 80% of the internally generated photons are trapped within the thin-film layer structure, a second focus is put on reviewing promising concepts for improved light outcoupling.
引用
收藏
页码:1245 / 1293
页数:49
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