Above 20% external quantum efficiency in green and white phosphorescent organic light-emitting diodes using an electron transport type green host material

作者：Jeon Soon Ok; Lee Jun Yeob^*

来源：Organic Electronics, 2011, 12(11): 1893-1898.

DOI：10.1016/j.orgel.2011.08.001

• Phosphorescent white organic light emitting
• diodes
• High efficiency
• Green phosphorescent host

Highly efficient green and white phosphorescent organic light emitting diodes were developed using a green phosphorescent host material based on phenyl substituted spirobifluorene. A high quantum efficiency of 25.3% was achieved in the green phosphorescent device and a high quantum efficiency of 21.6% was obtained in the white device with a stacked emitting structure of deep blue and red: green emitting layers.

• 出版日期2011-11