摘要
设计了由分布布拉格反射镜 (DBR)和金属反射镜面形成的微腔结构。利用 8-羟基喹啉铝 (Alq3)作为电子传输层兼作发光层 ,TPD作为空穴传导层 ,制成了有机发光二极管(OLED)和微腔有机发光二极管 (MOLED)。发现MOLED的光谱半宽比OLED的窄得多 ,而光密度则得到了增强。对腔长进行调节 ,MOLED光谱峰出现移动。实验结果与理论计算基本符合。
Microcavity structure consisting of a distributed Bragg reflector (DBR) is designed. Using 8-hydroxyquinoline aluminium (Alq 3) as an electron transporting layer and emissive layer,and triphenyl diamine (TPD) as the hole transporting layer, organic light emitting diodes(OLEDs) and microcavity organic light emitting diodes(MOLEDs) are fabricated. It is found that FHWM of MOLEDs is much narrower than that of OLEDs while the light intensty of MOLED is enhanced. When the cavity length is modified, the peak spectrum of MOLED will move. The results of the experiment agree quite well with the theoretic calculation.
出处
《半导体光电》
EI
CAS
CSCD
北大核心
2000年第3期166-168,共3页
Semiconductor Optoelectronics
基金
国家自然科学基金资助项目! (6 9876 0 15 )
关键词
有机发光二极管
微腔
电致发光
MOLED
organic light emitting diode
microcavity organic light emitting diode
EL
