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《Materials Review》 2007-04
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Progress in Research on Organic Small Molecule Electrophosphorescent Materials

WANG Xiaoliang, SUN Yueming, JIANG Wei, WANG Qi, SONG Kunzhong(School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096)  
During the past two decades, the triplet exciton states of electrophosphorescent materials are not fully utilized. Later, electroluminescences based on organic phosphorescent complexes have drawn particular attention in recent years. The notable advantage of phosphorescences is that they can simultaneously utilize both singlet and triplet exciton states which can reach to 100% internal quantum efficiency theoretically. This article reviews the progress in research on organometallic complexes used as electrophosphorescent materials in organic light-emitting diodes(OLED) in recent years, focusing on the development of heavy metal iridium complexes. It also discusses the genuine electrophosphorescent mechanism and some developments in using phosphorescent dopants.It includes the prospect of the development of organometallic electrophosphorescent materials. And it also puts forward the ways of future development for phosphorescent materials.
【Fund】: 江苏省高技术项目资助(编号BG2005034)
【CateGory Index】: TB34
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