摘要
以ITO为透明电极,NPB为空穴传输层,Alq_3为发光层,制备出ITO/NPB/Alq_3/LiF/Al结构的有机电致发光显示器。通过比较Alq_3发光层厚度以及沉积速率对OLED的亮度、发光效率的影响,确定了Alq_3层的厚度为65nm,沉积速率为0.3nm/s,得到起亮电压为3.01V、发光亮度为12800cd/m2、发光效率达到4.421cd/A的器件,并对其影响因素进行了分析。
Organic light-emitting device （OLED） based on Alq3 emitting layer, ITO transparent anode and NPB hole transport layer were fabricated. The structure was ITO/NPB/Alq3/LiF/A1. Optimized thickness 65 nm and deposit speed 0.3 nm/s were confirmed through the comparison of brightness and luminescent efficiency with different thickness and deposit speed of Alq3. The threshold voltage 3.01 V, brightness 12 800 cd/m^2, efficiency 4. 421 cd/A were achieved. In addition, influence factors were analyzed.
出处
《液晶与显示》
CAS
CSCD
北大核心
2005年第6期508-511,共4页
Chinese Journal of Liquid Crystals and Displays
基金
国家自然科学基金资助项目(No.20476054)
陕西省教育厅专项研究基金资助项目(No.03JK1610)
