论文信息 - Efficiency improvement of red organic light-emitting diodes using a blue phosphorescent exciton blocking layer

Efficiency improvement of red organic light-emitting diodes using a blue phosphorescent exciton blocking layer

Quantum efficiency of red organic light-emitting diodes was improved using a blue phosphorescent emitting layer as an exciton blocking layer. Compared with 8.1% quantum efficiency of standard devices without an exciton blocking layer, high quantum efficiency of 14.1% was obtained using a blue phosphorescent emitting layer between the hole transport layer and the red emitting layer.

Kyoung Soo Yook | Jun Yeob Lee

[1] J. Jang,et al. High efficiency phosphorescent organic light-emitting diodes using carbazole-type triplet exciton blocking layer , 2007 .

[2] Ho Kyoon Chung,et al. High efficiency and low power consumption in active matrix organic light emitting diodes , 2003 .

[3] Stephen R. Forrest,et al. New charge-carrier blocking materials for high efficiency OLEDs , 2003 .

[4] Stephen R. Forrest,et al. Phosphorescent materials for application to organic light emitting devices , 1999 .

[5] Jan Birnstock,et al. High-efficiency and low-voltage p‐i‐n electrophosphorescent organic light-emitting diodes with double-emission layers , 2004 .

[6] Shizuo Tokito,et al. Highly efficient phosphorescence from organic light-emitting devices with an exciton-block layer , 2001 .

[7] Jun Yeob Lee. Effect of doping profile on the lifetime of green phosphorescent organic light-emitting diodes , 2006 .