Properties of PbTiO3, La-modified PbTiO3 and Pb(Zr,Ti)O3 thin films and their application to infrared detectors

  • Wei Ren
  • , Yun Liu
  • , Xiaoqing Wu
  • , Liangying Zhang
  • , X. I. Yao

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

The structure and properties of PbTiO3, La-modified PbTiO3 and Pb(Zr,Ti)O3 ferroelectric thin films and multilayer pyroelectric thin films applied to infrared detectors were investigated. A PbTiO3 thin film with fine crystal grains has low dielectric constant and loss tangent, and its pyroelectric coefficient is 1. 6 × 10-8 C/cm2 K. A multilayer pyroelectric thin film is introduced to reduce thermal loss from the pyroelectric layer to the substrate. A porous SiO2 thin film with very low thermal conductivity was prepared and used as a thermal insulating layer. Experimental results show that the multilayer pyroelectric thin film can improve the pyroelectric response of a thin film detector remarkably at low frequency, and is a promising candidate for infrared detectors.

Original languageEnglish
Pages (from-to)271-279
Number of pages9
JournalIntegrated Ferroelectrics
Volume15
Issue number1-4
DOIs
StatePublished - 1997

Fingerprint

Dive into the research topics of 'Properties of PbTiO3, La-modified PbTiO3 and Pb(Zr,Ti)O3 thin films and their application to infrared detectors'. Together they form a unique fingerprint.

Cite this