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A new equivalent circuit model of organic-light-emitting-diode(OLED) is proposed.As the singlediode model is able to approximate OLED behavior as well as the multiple-diode model,the new model will be built based on it.In order to make sure that the experimental and simulated data are in good agreement,the constant resistor is exchanged for an exponential resistor in the new model.Compared with the measured data and the results of the other two OLED SPICE models,the simulatedⅠ-Ⅴcharacteristics of the new model match the measured data much better.This new model can be directly incorporated into an SPICE circuit simulator and presents good accuracy over the whole operating voltage.
A new equivalent circuit model of organic-light-emitting-diode (OLED) is proposed. As the single diode model is able to approximate the OLED behavior as well as the multiple-diode model, the new model will be built on on. to make sure that the experimental and simulated data are in good agreement, the constant resistor is exchanged for an exponential resistor in the new model. Compared with the measured data and the results of the other two OLED SPICE models, the simulated I-Ⅴ characteristics new model match the measured data much better.This new model can be directly incorporated into an SPICE circuit simulator and presents good accuracy over the whole operating voltage.