Abstract
Organic semiconductor based photodetectors would be very attractive, innovative and well suited for light detection applications. The requirement of organic semiconductor in photonic device is to low cost, light weight, mechanical flexibility, chemical modification, tunability of absorption range with co-evaporation and co-mixing of molecules and easy to integrate. In fact, organic optoelectronics devices are more eco-friendly and energy efficient. In this research work, main objective is to fabricate and characterize organic semiconductor based photo detector with a proper choice of organic semiconductor as donor and acceptor and optimize by employing diversified organic semiconductors for fast response time, high photosensitivity, high quantum efficiency, low dark current, large dynamic range and long life time. The equivalent circuit model of the proposed organic photo detector (OPD) structure has been designed and simulated using MATLAB Simulink in which Rubrene and BPPC are used as active layer of OPD. 500 MHz of Operating frequency is to be found in this proposed OPD that is much higher than the speed of the red light illumined Bi-layer OPDs reported till today.
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