【作者】 段光凤；

【导师】 刘彭义；

【作者基本信息】 暨南大学 ， 凝聚态物理， 2005， 硕士

【摘要】 本论文工作主要包括有机电致发光器件的制作及其一系列电学、光学性能的测试和分析。 论文先回顾了有机电致发光器件的历史进展、介绍了器件结构、有机材料、发光机理、研究热点及应用前景。 在实验过程中,器件的各层有机膜采用真空蒸发沉积技术制备,并对Alq₃和TPD两种有机膜采用多种检测手段验证了膜的均匀性,通过PL谱和EL谱对比知道了器件的发光来自Alq₃。 文章重点研究了影响有机发光器件性能的几个因素,器件的结构为:ITO/TPD（20nm）/Alq₃（30nm）/Al:首先在保证基片与蒸发源距离不变,湿度相同的情况下,通过改变Alq₃蒸发温度,测试器件的J-V、B-V、η-V及衰变,寻找Alq₃的最佳沉积速率;确定了Alq₃的沉积速率后,在此最佳沉积速率条件下探讨湿度对器件性能的影响;在这章节的最后一部分,比较了LiF/Al的复合电极与单层Al电极的器件性能区别。 论文对OLED的寿命做了简单的研究,做了大气环境下的寿命实验,通过测试器件的衰变曲线得到了有价值的实验结果。更多还原

【Abstract】 This thesis mainly discussed the OLED’s fabrication and a series of characteristics on electronic and optical property.At first, the thesis reviewed the histories and described structures、 organic materials、 hotspot、 foreground of organic Light-Emitting Devices.The organic films of OLED were fabricated by reactive evaporating deposition.The uniformity on the organic films of Alq₃ and TPD were maden sure by some detection which device’s luminescence is from Alq₃ was known by PL and EL chart.The thesis discussed the effects of OLED’s property. The structure of OLED is ITO/TPD（20 nm）/Alq₃（30 nm）/Al .at first I searched the optimized deposition velocity of Alq₃ by testing electronic and optical property of the device. After ensuring the deposition velocity of Alq₃ ,The effect of OLED on humidity was discussed and the difference of LiF/Al cathode and Al cathode was studied .The thesis studied the lifetime of OLED and found worthy experiment results by experiment on lifetime on condition of atmosphere .更多还原