High pyroelectric coefficient modified lead titanate thin films deposition using gold electrode

Reported is the deposition and characterisation of lead zirconium titanate (PbZr0.4Ti0.6O3) (PZT) and lead calcium titanate (Pb0.7Ca0.3Ti03) (PCT) deposited on a gold electrode with a gold top electrode to form a capacitor structure. Pulsed laser deposition was utilised to deposit the thin films. Th...

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Veröffentlicht in:	Electronics letters 2013-07, Vol.49 (15), p.952-953
Hauptverfasser:	Ahmed, M, Butler, D.P
Format:	Artikel
Sprache:	eng
Schlagworte:	calcium compounds capacitor structure Condensed matter: electronic structure, electrical, magnetic, and optical properties dielectric constant dielectric loss tangent dielectric losses dielectric polarisation Dielectric properties of solids and liquids dielectric thin films Dielectrics, piezoelectrics, and ferroelectrics and their properties Exact sciences and technology gold top electrode lead calcium titanate lead compounds lead titanate thin films lead zirconium titanate Organic and inorganic circuits and devices Pb0.7Ca0.3TiO3 permittivity Permittivity (dielectric function) Physics poling pulsed laser deposition Pyroelectric and electrocaloric effects pyroelectric coefficient pyroelectricity PZT
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Zusammenfassung:	Reported is the deposition and characterisation of lead zirconium titanate (PbZr0.4Ti0.6O3) (PZT) and lead calcium titanate (Pb0.7Ca0.3Ti03) (PCT) deposited on a gold electrode with a gold top electrode to form a capacitor structure. Pulsed laser deposition was utilised to deposit the thin films. The thin films were characterised for their dielectric constant and loss tangent variation with temperature as well as the pyroelectric coefficient. The thin films were poled to improve the pyroelectric effect. The highest pyroelectric coefficient was found to be 280 µC/m2 K for PZT film and 400 µC/m2 K for the PCT film after poling.
ISSN:	0013-5194 1350-911X 1350-911X
DOI:	10.1049/el.2013.1164