Characteristics of Organic Light Emitting Diodes with Vanadium Oxide Solution-Treated Indium Tin Oxide
Authors: Kong, Chao; Xu, Zheng; Zhao, Suling; Zhang, Fujun; Yan, Guang; Gong, Wei; Liu, Rui; Sun, Qinjun
Source: Journal of Nanoscience and Nanotechnology, Volume 11, Number 11, November 2011 , pp. 9451-9455(5)
Publisher: American Scientific Publishers
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.
Document Type: Research article
Publication date: 2011-11-01
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