Preparation and electrical properties of (100) preferred (Ba,Sr)TiO3 bilayer thin films derived from pulse laser deposition method

S.G. Lu, P.A. Friddle, Z.K. Xu, G.G. Siu, H. Chen, K.H. Wong, Chee Leung Mak

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Bilayer Ba0.6Sr0.4TiO3 - Ba0.4Sr0.6TiO3 and Ba0.4Sr0.6TiO3 - Ba0.6Sr0.4TiO3 thin films were deposited on the LaNiO3-buffered Pt/Ti/SiO2/Sisubstrates using pulse laser deposition method. A (100) preferred orientation was obtained. The structure was characterized using x-ray diffraction (XRD) and Raman spectroscopy. The leakage current, and dielectric permittivity versus temperature were characterized. Results indicated that the (100) preferred bilayer structure had less leakage current and smaller loss tangent, which was in favor of enhancing the quality of thin film used as microwave dielectrics.
Original languageEnglish
Pages (from-to)849-852
Number of pages4
JournalHigh-Performance Ceramics Iii, Pts 1 and 2
Volume280-283
Publication statusPublished - 2005

Keywords

  • Barium strontium titanate
  • Preferred orientation
  • Thin film
  • Pulse laser deposition

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

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