UV-/thermal processing of sol-gel-derived lead-magnesium-niobium titanate thin films

  • Mehmet Çopuroǧlu
  • , Shane O'Brien
  • , Barbara Malič
  • , Brigita Kužnik
  • , Marija Kosec
  • , Xiaohong Zhu
  • , Emmanuel Defaÿ
  • , Richard Winfield

Research output: Contribution to journalArticlepeer-review

Abstract

This work aimed to describe the sol-gel synthesis and preparation of a near-morphotropic phase boundary lead-magnesium-niobium titanate (PMNT) material system, and to investigate the influences of room-temperature-UV-irradiation and rapid thermal annealing (RTA) processes on the properties of its thin films. It was postulated that the use of UV-irradiation prior to thermal processing could play a role in the generation of a structural difference that would manifest itself via the formation of a higher film thickness, which was more pronounced at higher RTA temperatures The PMNT thin film system described here (particularly those annealed at higher temperatures) appeared to be potentially suitable for ultrahigh-value-capacitor applications; the unexposed film annealed at 750 °C exhibited the highest high k value (1425) with a strongly pronounced perovskite phase (97%).

Original languageEnglish
Pages (from-to)4503-4507
Number of pages5
JournalThin Solid Films
Volume518
Issue number16
DOIs
Publication statusPublished - 1 Jun 2010

Keywords

  • Characterisation
  • Ferroelectrics
  • Rapid thermal annealing
  • Sol-gel method
  • UV-irradiation

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