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

    研究成果: Article査読

    48 被引用数 (Scopus)

    抄録

    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.

    本文言語English
    ページ(範囲)2456-2460
    ページ数5
    ジャーナルJournal of Solid State Chemistry
    183
    10
    DOI
    出版ステータスPublished - 2010 10 1

    ASJC Scopus subject areas

    • 電子材料、光学材料、および磁性材料
    • セラミックおよび複合材料
    • 凝縮系物理学
    • 物理化学および理論化学
    • 無機化学
    • 材料化学

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