摘要
采用喷涂技术制备了石墨烯/PEDOT:PSS复合透明导电薄膜,并在此基础上制备了柔性黄光OLED器件。通过设计DPVBi/Rubrene/DPVBi势阱结构,可以实现电荷的有效陷获,获得稳定明亮的黄光发射。实验结果表明,适当增加发光区的厚度,可以提升器件的发光效率和稳定性,在12 V时器件的效率为0.9 cd/A。该柔性黄光OLED器件在反复弯曲测试中表现出了良好的发光稳定性,发光效率没有产生明显变化。
Graphene/PEDOT：PSS hybrid transparent conductive thin films were fabricated by using spray coating technique. Flexible yellow OLEDs were also fabricated based on the grapphene/PEDOT：PSS hybrid thin films. Charge carriers can be effectively trapped in the DPVBi/Rubrene/DPVBi structure and as a result, stable bright yellow emission can be obtained. The experimental results indicate that the efficiency and stability of the devices can be improved by enhancing the thicknes. of the emission region. The current efficiency of the device at 12 V is 0.9 cd/A. The flexible yellow OLEDs exhibit excellent emission stability upon repeating bending test, and the luminescent efficiency does not show obvious variation.
出处
《电子元件与材料》
CAS
CSCD
2016年第1期29-32,共4页
Electronic Components And Materials
基金
国家自然科学基金资助(No.61377027)
福建省自然科学基金资助(No.2013J01233)
