[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.4313/TEEM.2002.3.1.038

Current-Voltage-Luminance Characteristics Depending on a Direction of Applied Voltage in Organic Light-Emitting Diodes

Kim, Sang-Keol (Department of Electrical Engineering, Kwang Woon University)
Hong, Jin-Woong (Department of Electrical Engineering, Kwang Woon University)
Kim, Tae-Wan (Department of Physics, Hong Ik University)

Publication Information

Transactions on Electrical and Electronic Materials / v.3, no.1, 2002 , pp. 38-41 More about this Journal

Abstract

We have investigated current-voltage-luminance characteristics of organic light-emitting diodes based on TPD/Alq $_3$ organics depending on the application of forward-backward bias voltage. Luminance-voltage characteristics and luminous efficiency were measured at the same time when the current-voltage characteristics were measured. We have observed that the current-voltage characteristics shows a reversible current maxima at low voltage, which is possibly not related to the emission from Alq $_3$ . Current-voltage-luminance characteristics imply that the conduction luminance mechanism at low voltage is different from that of high voltage one.

Keywords

Organic light-emitting diodes; Current-voltage-luminance characteristics; Negative differential resistance;

Citations & Related Records

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