White Organic Light-Emitting Devices Based on 2-(2-Hydroxyphenyl) Benzothiazole and Its Chelate Metal Complex |
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引用本文: | 吴晓明,华玉林,王肇圻,郑加金,冯秀岚,孙媛媛.White Organic Light-Emitting Devices Based on 2-(2-Hydroxyphenyl) Benzothiazole and Its Chelate Metal Complex[J].中国物理快报,2005,22(7):1797-1799. |
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作者姓名: | 吴晓明 华玉林 王肇圻 郑加金 冯秀岚 孙媛媛 |
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作者单位: | [1]InstituteofModernOptics,NankaiUniversity,Tianjin300071//InstituteofMaterialPhysics,TianjinUniversityofTechnology,Tianjin300191 [2]InstituteofMaterialPhysics,TianjinUniversityofTechnology,Tianjin300191 [3]InstituteofModernOptics,NankaiUniversity,Tianjin300071 |
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摘 要: | We present three kinds of organic light-emitting devices (OLED) fabricated to achieve the emission of bright and pure white light. Device A, with a double-layered structure using 2-(2-hydroxyphenyl) benzothiazole (HBT) and poly (N-vinylcarbazole) (PVK) as the emitting layer (EML) and the hole transport layer (HTL) respectively, could realize the blue-green light emission. Bis-(2-(2-hydroxyphenyl) benzothiazole)zinc (Zn(BTZ)2), synthesized with zinc acetate dihydrate and HBT to form a complex, is used as main EMLs in a similar structure to fabricate devices B and C. Bright and pure white light emissions can be obtained from device C which was fabricated with a green-white emitting host Zn(BTZ)2 and red dopant 5,6,11,12-tetraphenylnaphthacene (rubrene). The maximum quantum efficiency of device C could reach 0.63%, and the corresponding brightness and CIE coordinates were 4000cd/m^2 and (x=0.341, y=0.334) at the driving voltage of 20V.
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关 键 词: | 白色有机光-发射 螯合金属复合物 双层结构 羟苯基 |
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