Morphology-controlled synthesis of W 18O 49 nanostructures and their near-infrared absorption properties

Chongshen Guo, Shu Yin, Mei Yan, Makoto Kobayashi, Masato Kakihana, Tsugio Sato

    Research output: Contribution to journalArticlepeer-review

    193 Citations (Scopus)

    Abstract

    The morphology-controlled synthesis and near-infrared (NIR) absorption properties of W 18O 49 were systematically investigated for the application of innovative energy-saving windows. Various morphologies of W 18O 49, such as nanorods, nanofibers, nanograins, nanoassembles, nanoplates, and nanoparticles, with various sizes were successfully synthesized by solvothermal reactions using organic alcohols as reaction media and WCl 6, W(EtO) 6, and WO 3 solids as the tungsten source. W 18O 49 nanorods of less than 50 nm in length showed the best optical performance as an effective solar filter, which realized high transmittance in the visible region as well as excellent shielding properties of NIR light. Meanwhile, the W 18O 49 nanorods also exhibited strong absorption of NIR light and instantaneous conversion of the absorbed photoenergy to the local heat.

    Original languageEnglish
    Pages (from-to)4763-4771
    Number of pages9
    JournalInorganic chemistry
    Volume51
    Issue number8
    DOIs
    Publication statusPublished - 2012 Apr 16

    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Inorganic Chemistry

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