Effect of deposition temperature on the microstructure and dielectric properties of Ba 0.6Sr 0.4TiO 3 thin film deposited by radio-frequency magnetron sputtering

Zuyong Feng*, Wei Chenooi, Kiang Tan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Ba06Sr04TiO3 (BST) thin films with the thickness of 300 nm were deposited on Pt/SiO2/Si substrates at various deposition temperatures by RF magnetron sputtering technique, and their electric properties were investigated. Due to the high tem-perature annealing process at substrate temperature of 600 °C, well-crystallized BST film was deposited. The dielectric con-stant and dielectric loss of the film deposited at 600 °C are 300 and 0.033 at 100 kHz, respectively. Due to the good crys- tallinity of the BST films deposited by RF magnetron sputter-ing, high dielectric tunability up to 39.2% is achieved at a low applied voltage of 5 V.

Original languageEnglish
Pages (from-to)1510-1514
Number of pages5
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume206
Issue number7
DOIs
Publication statusPublished - Jul 2009
Externally publishedYes

ASJC Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

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