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采用蓝色bis[3,5-difiuoro-2-(2-pridyl)phenyl-(2-carboxypyribyl)iridum Ⅲ](Flrpic)和黄色bis[2-(4-tertbutylphenyl)benzothiazolato—N,C^2']iridium(acetylacetonate)[(t—bt)2Ir(acac)]两种磷光染料,制备了双发光层结构的白色有机电致发光器件,器件结构为ITO/TAPC(30nm)/host:(t-bt):Ir(acac)[(10-x)nm,4%]/spacer