title: Comparison of bipolar hosts and mixed-hosts as host structures for deep-blue phosphorescent organic light emitting diodes.
authors: Department of Polymer Science and Engineering, Dankook Univeristy, Yongin-si, Gyeonggi-do, 448-701 Korea.
authors: Sook Hee
authors: SH
authors: Jeong
authors: Chang Woo
authors: CW
authors: Seo
authors: Jun Yeob
authors: JY
authors: Lee
authors: Nam Sung
authors: NS
authors: Cho
authors: Jung Keun
authors: JK
authors: Kim
authors: Joong Hwan
authors: JH
authors: Yang