Preparation and Properties of PZT Thin Films Produced by Decomposition of Metal Carboxylate Gels

Abstract:

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In this work, PZT (Zr/Ti=52/48) thin films have been prepared using aqueous organic gel method. The desired metal cations are chelated in a solution using citric acid and ethylenediaminetertraacetic acid (EDTA) as the chelating agents. The thermal decompostion of the metal carboxylate precursors gels have been studied by TG/DTA and the products derived from calcinations of the gels at different temperatures have been characterized by XRD and SEM. By heat-treatment at 650°C for 2h, PZT thin films with smooth and crack-free surface could be achieved. The thickness of each layer was 50nm. Electric properties measurement indicated that the PZT films demonstrated a ferroelectric hysteresis loop. The remanent polarization(Pr) and coercive field (Ec) were 20.7μC/cm2 and 75.5kV/cm, respectively. The dielectric constant and the dielectric loss at 100 kHz of the films were 930 and 0.045, respectively.

Info:

Periodical:

Solid State Phenomena (Volumes 121-123)

Edited by:

Chunli BAI, Sishen XIE, Xing ZHU

Pages:

195-200

DOI:

10.4028/www.scientific.net/SSP.121-123.195

Citation:

J. P. Zhao et al., "Preparation and Properties of PZT Thin Films Produced by Decomposition of Metal Carboxylate Gels", Solid State Phenomena, Vols. 121-123, pp. 195-200, 2007

Online since:

March 2007

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$35.00

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