Stress effect on the pyroelectric properties of lead titanate thin films

Haitao Huang, Chang Q. Sun, Zhang Tianshu, Zhu Hong, Joo Tien Oh, Peter Hing

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)

Abstract

In the application of thin ferroelectric films to IR sensors, problems may arise to affect the sensitivities of the devices. The effects to influence the pyroelectric properties can be mainly categorized into two groups. One is the intrinsic effect due to the reduction in grain size. The other is the effect caused by residual stress. In this paper the stress effect on the pyroelectric properties of PbTiO3thin films will be studied by using the Landau-Ginsburg-Devonshire (LCD) phenomenological theory. It is found that a compressive stress increases the figure of merit while a tensile stress increases the pyroelectric coefficient for the films with the polarization vectors normal to the surface.
Original languageEnglish
Pages (from-to)81-90
Number of pages10
JournalIntegrated Ferroelectrics
Volume51
DOIs
Publication statusPublished - 1 Dec 2003
Externally publishedYes

Keywords

  • Figure of merit
  • PbTiO 3
  • Phenomenological theory
  • Pyroelectric coefficient
  • Stress

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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