In this study we report the use of a wide band gap host host p-bis (triphenylsilyly) benzene (UGH2) for Iridium (III) bis [(4, 6-difluorophenyl)-pyridinato-N, C2’] picolinate (FIrpic) based devices. The wide band gap host serves to confine the charge carriers in the emitting layer. Also the high triplet energy of the host efficiently confines all the excitons on the dopant molecules. A systematic effort is made to enhance the performance of blue phosphorescent organic light emitting diodes using the UGH2 host. The device performance of the intrinsic device was further enhanced by incorporation of a p-i-n architecture to tune the charge balance in the device.

© 2008 Optical Society of America

PDF Article
More Like This
Triplet energy confinement effect in blue phosphorescent organic light emitting devices

Jaewon Lee, Neetu Chopra, and Franky So
CMR4 Conference on Lasers and Electro-Optics (CLEO) 2008

Highly Efficient Blue Electrophosphorescent Device Using a Weak Electron Transporting Material

Lixin Xiao, Boyuan Qi, Xing Xing, Zhijian Chen, Bo Qu, and Qihuang Gong
SDWC3 Solid-State and Organic Lighting (SOLED) 2011

High Efficiency and Simple Architecture Phosphorescent OLEDs

Tae Jin Park, Woo Sik Jeon, and Jang Hyuk Kwon
ThY2 Asia Communications and Photonics Conference and Exhibition (ACP) 2009


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription