【摘要】 考察了红光Cu(Ⅰ)配合物[Cu(dbp)(dmp)](BF4)(dbp:2,9-二叔丁基-1,10-菲咯啉;dmp:2,9-二甲基-1,10-菲咯啉)的光致发光(PL)和电致发光(EL)性能。将质量分数为20%的配合物掺杂于聚甲基丙烯酸甲酯(PMMA)薄膜中,配合物的最大发射在617 nm,PL效率约为5%,磷光寿命为1.7μs。将质量分数为10%的配合物搀杂于聚乙烯基咔唑(PVK)主体材料中,制备的多层器件的光谱同配合物在PMMA薄膜中光致发光光谱基本一致,能达到631 cd/m2的最大亮度和0.9 cd/A的最大电流效率。器件在高电流密度下的三重态-三重态淬灭不严重,这与该Cu(Ⅰ)配合物的磷光寿命较短有关。更多还原

【Abstract】 The photoluminescence and electroluminescence properties of red Cu（Ⅰ） complex (BF₄)（dbp=2,9-Di-tert-butyl-1,10-phenanthroline;dmp=2,9-Dimethyl-1,10-phenanthroline） were studied.The film of 20% Cu（Ⅰ） complex in PMMA exhibited a photoluminescence quantum yield of 5% with emission maximum at 617 nm.A short excited-state lifetime of 1.7 μs was also observed.Phosphorescent OLEDs with red emission identical to photoluminescence spectrum of the complex in PMMA film were fabricated by using poly（vinyl carbazole）（PVK） as host.A current efficiency of 0.9 cd/A along with a（maximum） brightness up to 631 cd/m² was demonstrated.The triplet-triplet（T-T） annihilation under a high current density was not significant for these devices and might be attributed to the short excited-state lifetime of the（complex）.更多还原