Photo Response in Zinc Oxide Doped Alizarin Thin Film

Hybrid structure based on organic and inorganic materials are emerging as most promising materials for photovoltaic applications. We have designed a hybrid structurc based on Alizarin (1, 2 dihydroxy anthraquinone) and a wide band gap zinc oxide. Alizarin acts as donor and zinc oxide acts as an acceptor material. The device having configuration of ITO/Aln:ZnO/Ag was characterized by analyzing its optical and electrical characteristics. It is found that the doping with zinc oxide imparts an accelerated improvement in device performance particularly in terms of its photo response. Impedance analysis of the device was carried out by recording Cole‐Cole plot in between real and imaginary impedance under biasing varying from 0 to 5 V.