Microstructure and electricaloptical properties of cesium tungsten oxides synthesized by solvothermal reaction followed by ammonia annealing

Jing Xiao Liu, Yoshihiko Ando, Xiao Li Dong, Fei Shi, Shu Yin, Kenji Adachi, Takeshi Chonan, Akikazu Tanaka, Tsugio Sato

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

Cesium tungsten oxides (CsxWO3) were synthesized by solvothermal reactions using ethanol and 57.1 vol% ethanol aqueous solution at 200 °C for 12 h, and the effects of post annealing in ammonia atmosphere on the microstructure and electricaloptical properties were investigated. Agglomerated particles consisting of disk-like nanoparticles and nanorods of CsxWO3 were formed in the pure ethanol and ethanol aqueous solutions, respectively. The samples retained the original morphology and crystallinity after annealing in ammonia atmosphere up to 500 °C, while a small amount of nitrogen ion were incorporated in the lattice. The as-prepared CsxWO3 sample showed excellent near infrared (NIR) light shielding ability as well as high transparency in the visible light region. The electrical resistivity of the pressed pellets of the powders prepared in pure ethanol and 57.1 vol% ethanol aqueous solution greatly decreased after ammonia annealing at 500 °C, i.e., from 734 to 31.5 and 231 to 3.58 Ω cm, respectively.

Original languageEnglish
Pages (from-to)2456-2460
Number of pages5
JournalJournal of Solid State Chemistry
Volume183
Issue number10
DOIs
Publication statusPublished - 2010 Oct 1

Keywords

  • Ammonia annealing
  • CsWO
  • Electrical properties
  • Optical properties
  • Solvothermal reaction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Microstructure and electricaloptical properties of cesium tungsten oxides synthesized by solvothermal reaction followed by ammonia annealing'. Together they form a unique fingerprint.

  • Cite this