| Recombination Efficiency in Double-Layer Organic Light-Emitting Devices |
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| 作者姓名： | 许雪梅 彭景翠 翟述 李宏建 吴建好 欧阳玉 |
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| 作者单位： | [1]DepartmentofAppliedPhysics,HunanUniversity,Changsha410082／／SchoolofPhysicsScienceandTechnology,CentralSouthUniversity,Changsha410083 [2]DepartmentofAppliedPhysics,HunanUniversity,Changsha410082 [3]SchoolofP-hysicsScience-andTechnology,CentralSouthUniversity,Changsha410083 |
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| 摘 要： | We analyse the influence of properties of organic/organic interface (OOI) on the characteristics of recombination efficiency of organic double-layer light-emitting diodes. Based on the disordered hopping theory model, spatial and energetic disorder of hopping states are also discussed for the case of space charge limited currents in hole transmitting layers but injection-limited currents in electron transporting layers. The results show that the recombination efficiency increases firstly and then decreases for different OOI parameters, and there is a maximum value changed with different spatial disorder parameters and energetic disorder scale. Different spatial disorder parameters make carrier mobilities change greatly, and the energetic disorder scale causes various localized state densities. Our calculated results are qualitatively in agreement with the experimental data.
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| 关 键 词： | 再结合效率 双层有机光发射二极管 能量转换 电子输运层 数字仿真 |
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