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Preparation and properties of PZT thin films produced by decomposition of metal carboxylate gels

  • J. P. Zhao*
  • , C. Y. Juan
  • , L. S. Qiang
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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 20.7 μC/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.

Original languageEnglish
Title of host publicationNanoscience and Technology
PublisherTrans Tech Publications Ltd
Pages195-200
Number of pages6
EditionPART 1
ISBN (Print)3908451302, 9783908451303
DOIs
StatePublished - 2007
EventChina International Conference on Nanoscience and Technology, ChinaNANO 2005 - Beijing, China
Duration: 9 Jun 200511 Jun 2005

Publication series

NameSolid State Phenomena
NumberPART 1
Volume121-123
ISSN (Print)1012-0394

Conference

ConferenceChina International Conference on Nanoscience and Technology, ChinaNANO 2005
Country/TerritoryChina
CityBeijing
Period9/06/0511/06/05

Keywords

  • Aqueous organic gel
  • EDTA
  • Electrical properties
  • PZT thin films

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