Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/16614
Title: Electrical and pyroelectric properties of Sol-Gel derived (Pb, Ca)TiO 3 thin films with various orientations
Authors: Tang, XG
Ding, AL
Chan, HLW 
Issue Date: 2003
Source: Chinese physics letters, 2003, v. 20, no. 11, p. 2039-2041 How to cite?
Journal: Chinese Physics Letters 
Abstract: (Pb0.76Ca0.24)TiO3 (PCT) thin films with various orientations were grown on Pt/Ti/SiO2/Si substrates by using a sol-gel process and by controlling the temperature of heat-treatment. The PCT thin films with (100) and random orientation showed well-saturated hysteresis loops at an applied field of 800 kV/cm, with remanent polarization and coercive electric field of 23.6 μC/cm2 and 225 kV/cm, 17.8 μC/cm 2 and 195 kV/cm, respectively. For highly (100)- and random-oriented PCT films, the dielectric constant and dielectric loss values of these films are 121 and 0.016, 121 and 0.024 at 1 kHz, respectively. The pyroelectric coefficients p of the PCT thin films are measured by a dynamic technique. At room temperature, the p values and figures of merits of the highly (100)and random-oriented PCT films are 185μC/m2K and 1.79 × 10 -5 Pa-0.5, 176μC/m2K and 1.39 × 10-5 Pa-0.5, respectively.
URI: http://hdl.handle.net/10397/16614
ISSN: 0256-307X
DOI: 10.1088/0256-307X/20/11/039
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