title: Characteristics of organic light emitting diodes with vanadium oxide solution-treated indium tin oxide.
abstract: The effect of indium tin oxide (ITO) in organic light emitting diodes (OLEDs) treated by vanadium penoxide (V2O5) saturation solution was studied. The device with ITO treated by ultraviolet-ozone (UV-ozone) was fabricated in the same run for comparison. It was found that the V2O5 solution-treated devices have much higher current efficiency compared to the device with bare ITO and UV-ozone-treated ITO as the anode. The turn-on voltages were reduced by around 2.5 V, and the luminances were about 1.69 times greater than that of the conventional device at 16 V driving voltage. Series resistances were determined by the slope of the current-voltage curve and the ac impedance spectroscopy technique.
authors.affiliation: Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing 100044, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Kong
authors.forename: Zheng
authors.initials: Z
authors.lastname: Xu
authors.forename: Suling
authors.initials: S
authors.lastname: Zhao
authors.forename: Fujun
authors.initials: F
authors.lastname: Zhang
authors.forename: Guang
authors.initials: G
authors.lastname: Yan
authors.forename: Wei
authors.initials: W
authors.lastname: Gong
authors.forename: Rui
authors.initials: R
authors.lastname: Liu
authors.forename: Qinjun
authors.initials: Q
authors.lastname: Sun