Effects of annealing on near-infrared shielding properties of Cs-doped tungsten oxide thin films deposited by electron beam evaporation

Chak Seng Long, Horng Hwa Lu, Ding Fwu Lii, Jow Lay Huang

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Near-infrared (NIR) shielding properties are important for solar films. In this study, CsxWO3 films prepared using electron beam evaporation were characterized using X-ray diffraction, X-ray photoelectron spectroscopy, and spectrophotometry. The effects of annealing on NIR shielding properties and film microstructure were investigated. The results show that the NIR shielding properties of CsxWO3 films can be improved by annealing at 300-450°C under pure H2 atmosphere, the amorphous thin films being transformed to crystalline films. The CsxWO3 films annealed at 450°C in pure H2 atmosphere showed high transmittance of visible light (70%) and high NIR shielding ratio (99%).

Original languageEnglish
Pages (from-to)75-79
Number of pages5
JournalSurface and Coatings Technology
Volume284
DOIs
Publication statusPublished - 2015 Dec 25

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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