Accession Number : ADP006658

Title :   Photovoltages in Ferroelectric Films,

Corporate Author : HARRY DIAMOND LABS ADELPHI MD

Personal Author(s) : Brody, P. S. ; Rod, B. J.

Report Date : 05 APR 1991

Pagination or Media Count : 11

Abstract : Polarization-dependent steady photovoltaic currents were found in thin lead zirconate-titanate films on silicon substrate. In addition to a polarization-dependent current, there was a steady non-polarization-dependent background current. There were also transient photo-voltaic currents that appeared once, in an initial response to illumination, after the remanent polarization is switched. For mercury arc illumination and a 0.25-gm-thick, sol gel process, 53/47 Zr/Ti ratio film, the polarization -dependent current was equal to 2.7 A/C per W/cm2.

Descriptors :   *PHOTOVOLTAIC EFFECT, *FERROELECTRIC MATERIALS, BACKGROUND, FILMS, GELS, ILLUMINATION, MERCURY, POLARIZATION, RATIOS, RESPONSE, SILICON, SUBSTRATES, TRANSIENTS, ZIRCONATES, LEAD TITANATES.

Subject Categories : Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE