Abstract
In this study, the space charge limited current transport model was applied to simulate the current density–voltage characteristics of two-layer NPB/Alq3 organic light emitting diodes (OLEDs). Several parameters for simulations were moderately adjusted, and the best set of parameters were obtained. Upon increasing the applied voltage, the junction temperature of the OLED increased, further influencing the transport of the carriers. When the junction temperature was used as the reference temperature in analysis of the relationship between voltage and temperature, the simulated current density–voltage characteristics were found to be very consistent with the experimental data.
Highlights
Taunk et al explored the current density–voltage (J–V) characteristics of the Al/PPy-PVDF/Ag device under different temperature conditions (10 K–300 K).1 Under any temperature and low voltage (
When the temperature was low and the applied voltage was high (>3 V), the conduction characteristics were related to the space charge limit, and the space charges followed an exponential distribution according to the defects
By combining the electric field-dependent hole mobility μp and space charge limited effects, they submitted that the hole conduction of a conjugated polymer may be a function of voltage, temperature, and thickness
Summary
Taunk et al explored the current density–voltage (J–V) characteristics of the Al/PPy-PVDF/Ag device under different temperature conditions (10 K–300 K). Under any temperature and low voltage (
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