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有机薄膜电致发光器件结构与发光特性的研究
引用本文:李方红,刘旭.有机薄膜电致发光器件结构与发光特性的研究[J].光学学报,1998,18(2):17-222.
作者姓名:李方红  刘旭
作者单位:浙江大学现代光学仪器国家重点实验室
摘    要:从有机电致发光薄膜的发光机理出发,通过以Alq薄膜器件、PVK为空穴传输层和Alq为发光层的双层 及PVK掺荧光材料Perylene的双层薄膜器件的研制,从器件的电致姚谱、电流密度-电压特性、亮度-电压特性的曲线的测试结果,计算分析了器件的流明效率、量子效率,并对有机薄膜电致发光器件的结构与发光特性之间的关系进行研究,利用能级理论分析了器件的姚特性随器件的结构不同所具有的规律。实验表明,加入PVK

关 键 词:电致发光  器件有机薄膜  能级理论  发光特性
收稿时间:1997/1/29

Structure and Electroluminescence Characteristics of Organic Thin Film Electroluminescent Devices
Li Fanghong,Liu Xu,Gu Peifu,Tang Jingfa.Structure and Electroluminescence Characteristics of Organic Thin Film Electroluminescent Devices[J].Acta Optica Sinica,1998,18(2):17-222.
Authors:Li Fanghong  Liu Xu  Gu Peifu  Tang Jingfa
Abstract:The electroluminescent mechanism of organic thin film is introduced. Several kinds of electroluminescent devices (the single layer of Alq; the double layers of PVK as a hole transport layer and Alq as an emitting layer; the double layer of PVK doped with perylene and Alq) are fabricated, and the EL spectra, J V, B V, efficiency of the devices are investigated. By the energy theory, the characteristics change of all devices is demonstrated. When the hole transport layer of PVK is used, the efficiency of double layer device is 10 ̄100 times higher than the efficiency of single layer device, and the highest quantum efficiency is 0.15%(photons/electrons). The luminous efficiency is 0.08 lm/w, the brightness is changed as the thickness of the hole transport layer and emitting layer are modulated.
Keywords:electroluminescence    organic film    theory of enegy band    
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