Optical and electrical properties of La2O3 films prepared by ion beam assistant electron beam evaporation

Chen Yang, Huiqing Fan, Shaojun Qiu, Yingxue Xi, Yunfei Fu

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

La"2O"3 films were deposited on Si(100) substrates by ion beam assistant electron beam evaporation and were annealed at 450900°C. Crystalline structure was found to change from amorphous structure to cubic and hexagonal structure with the rise in annealing temperature. The near infrared transmittance of the film annealed at 600°C was relatively high and could be further increased using assistant ion beam in deposition. The maximum leakage current density increased dramatically from 10-7 to 10-4 A/cm2 with the rise in annealing temperature. The film annealed at 600°C with cubic structure had a relatively high dielectric constant of ∼18.

Original languageEnglish
Pages (from-to)271-275
Number of pages5
JournalSurface Review and Letters
Volume15
Issue number3
DOIs
StatePublished - Jun 2008

Keywords

  • Electron beam evaporation
  • Film structure
  • LaO films
  • Optical and electrical properties

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