论文部分内容阅读
针对顶发射有机发光二极管(TEOLEDs)中的微腔效应会增加蓝光波段TEOLEDs的制作难度这一问题,提出利用高透明金属阴极并结合在阴极表面生长增透膜的方法来减小二极管阴极的反光性,从而抑制二极管中的微腔效应(这里主要是指多光束干涉);同时利用宽角干涉对器件结构进行设计来改善二极管的蓝光强度,制备了基于有机蓝光材料4,4-′bis(2,2-′diphenylvinyl)-1,1-′biphenyl的顶发射有机发光二极管;优化了增透膜的厚度,研究了增透膜对于二极管电光性能的影响;得到了性能(亮度、效率、色纯度等)可以与底发射有机发光二极管相比的蓝光波段TEOLEDs。
Aiming at the difficulty of making TEOLEDs in the blue wavelength band, the micro-cavity effect in top-emitting organic light-emitting diodes (TEOLEDs) is raised. It is proposed to reduce the reflectance of the diode cathode by using a highly transparent metal cathode in combination with an anti-reflection film grown on the cathode surface (Mainly referred to as multi-beam interference here); meanwhile, the structure of the device is designed to improve the blue light intensity of the diode by using wide angle interference, and a blue light based on the organic blue material 4,4 -bis 2,2’-diphenylvinyl) -1,1’-biphenyl. The thickness of the AR coating was optimized. The effect of the AR coating on the electro-optic performance of the diode was studied. The properties of the device such as brightness, efficiency, Purity, etc.) blue band TEOLEDs that can be compared to bottom-emitting organic light-emitting diodes.