title: Temperature dependent electrical properties of organic light-emitting diodes using a Zn complex.
abstract: We synthesized a new electroluminescent material [(1,10-phenanthroline)(8-hydroxyqu inoline)] Zn(phen)q. The temperature dependence of the electrical properties of OLED using Zn(phen)q are studied to understand the electrical conduction mechanism. The current density-voltage characteristics are measured in the temperature range of 60 approximately 240 K and analyzed using a hopping model with an exponential trap distribution. At temperatures above 150 K, hopping conduction with an exponential trap distribution is dominant. We have obtained a characteristic trap depth of E(t) = 0.13 eV.
authors.affiliation: Department of Electrical Engineering and NTRC, Dong-A University, Busan 604-714, Korea.
authors.forename: Dong-Eun
authors.initials: DE
authors.lastname: Kim
authors.forename: Gyu-Chae
authors.initials: GC
authors.lastname: Choi
authors.forename: Jun-Woo
authors.initials: JW
authors.lastname: Park
authors.forename: Byoung-Sang
authors.initials: BS
authors.lastname: Kim
authors.forename: Burm-Jong
authors.initials: BJ
authors.lastname: Lee
authors.forename: Young-Soo
authors.initials: YS
authors.lastname: Kwon