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Schottky barrier effects in the photocurrent of sol–gel derived lead zirconate titanate thin film capacitors
2000
Applied Physics Letters
Preserved Fulltext
We studied the photoresponse of Pb͑Zr 0.53 Ti 0.47 ͒O 3 ͑PZT͒ thin films by measuring the currentvoltage (I -V) curve at several ferroelectric polarization states illuminated by a monochromatic 3.5 eV UV light. The photocurrent in Pt/PZT/Pt capacitors was sensitive to the polarization state, and the poling voltage-dependent photocurrent showed very asymmetric hysteresis behavior. The capacitance that is dependent upon the thickness of the samples was first measured. Then, the capacitance of the
doi:10.1063/1.125891
fatcat:uvek6onqxna2zkp56mfb6haram