AVS 62nd International Symposium & Exhibition
    Energy Frontiers Focus Topic Tuesday Sessions
       Session EN-TuP

Paper EN-TuP11
Improvement in Photovoltaic Response of PLZT Thin Film Capacitors with ITO Electrodes

Tuesday, October 20, 2015, 6:30 pm, Room Hall 3

Session: Energy Frontiers Poster Session
Presenter: Sushma Kotru, The University of Alabama
Authors: S. Kotru, The University of Alabama
V.N. Harshan, The University of Alabama
V. Batra, The University of Alabama
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Ferroelectric thin films of perovskite-type structure are of practical interest because of their excellent ferroelectric, dielectric and optical properties. Recently these materials have generated lot of research interest for photovoltaic applications (PV) . Photovoltaic properties of Pb0.95La0.05Zr0.54Ti0.46O3 (PLZT) thin film capacitors prepared using solution based method with various top electrodes having different work functions are investigated. The results demonstrate that ITO (Sn doped In2O3), a transparent conducting oxide, as top electrode, enhances the magnitude of photo voltage and photo current as compared to metal electrodes. The photovoltaic efficiency is enhanced by orders of magnitude with ITO as top electrode when compared to metal electrode devices. Thus the choice of transparent conducting oxide as an electrode holds potential for improving the photovoltaic response of ferroelectric thin film capacitors.