Key Laboratory of Luminescence and Optical Information，Ministry of Education, Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044，China
Abstract：It is considered that the efficiency of fluorescent material based organic light emitting diodes can be enhanced by introducing a phosphorescent sensitizer. In the present work, devices with emission layers (EML) of fac-tris(2-phenylpyridinato-N,C2’) iridium (Ⅲ) (Ir(ppy)3)-sensitized-fluorescent materials were fabricated. Ir(ppy)3 was co-doped with DCJTB and rubrene in PVK matrix, respectively. When the doping ratio was proper, pure emission from fluorescent material can be achieved. Furthermore, the sensitizing mechanism and effect were analyzed. A weak effect between Ir(ppy)3 and DCJTB was found. It was deduced that the weaker sensitizing effect is related to the poor film appearance.
Key words：Phosphorescent sensitizer;Fluorescence;Energy transfer
宋丹丹，赵谡玲*,徐 征，张福俊，岳 欣，朱海娜. 磷光材料fac-tris(2-phenylpyridinato-N, C2’) iridium(Ⅲ) 对不同荧光材料的敏化作用及发光机制分析[J]. 光谱学与光谱分析, 2009, 29(10): 2626-2629.
SONG Dan-dan, ZHAO Su-ling*, XU Zheng, ZHANG Fu-jun, YUE Xin, ZHU Hai-na . Study on the Sensitizing Effect of fac-Tris(2-Phenylpyridinato-N, C2’) Iridium(Ⅲ) on Two Different Fluorescent Materials. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(10): 2626-2629.
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