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Simulation of bi-layer organic polymer light emitting diode using LiF/Al cathode

Nowadays device development using organic diodes (OLEDs) is kicking out inorganic diodes as they are more economical, flexible, faster and have higher luminosity than the inorganic devices. This paper presents the results of bi-layer organic polymer simulation with LiF/Al as the cathode and ITO as anode. Silvaco Atlas TCAD tool is used for simulation and analysis of the OLED device. The electrical and optical characteristics of OLEDs like I-V characteristics, recombination rate, exciton density, transient time versus anode current, transient time versus exciton density etc are presented. Simulation is based on distribution of Langevin recombination model. The model presented here will be helpful in future for the optimization of better electrical parameters.