Enhanced thermochromic properties and solar-heat shielding ability of WxV1-xO2 thin films with Ag nanowires capping layers

Li Li Zhao, Lei Miao, Cheng Yan Liu, Hai Long Wang, Sakae Tanemura, Li Xian Sun, Xiang Gao, Jian Hua Zhou

研究成果: Article

2 引用 (Scopus)

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Considerable efforts have been made to shift the phase transition temperature of metal-doped vanadium dioxide (VO2) films nearer the ambient temperature while maintain the excellent thermochromic properties simultaneously. Here, we describe a facile and economic solution-based method to fabricateW-doped VO2 (V1-xWxO2) thn films with excellent thermochromic properties for the application of smart windows. The substitutional doping of tungsten atoms notably reduces the phase transition temperature to the ambient temperature and retains the excellent thermochromic property. Furthermore, Ag nanowires (NWs) are employed as capping layers to effectively decrease the thermal emissivity from 0.833 to 0.603, while the original near infrared region (NIR) modulation ability is not severely affected. Besides, the Ag NWs layers further depress the phase transition temperature as well as the hysteresis loop width, which is important to the fenestration application. These solution-grown Ag NWs/V1-xWxO2 thin films exhibit excellent solar modulation ability, narrowed hysteresis loop width as well as low thermal emissivity, which provide a promising perspective into the practical application of VO2-based smart windows.

元の言語English
ページ(範囲)9192-9196
ページ数5
ジャーナルJournal of Nanoscience and Nanotechnology
15
発行部数11
DOI
出版物ステータスPublished - 2015 11 1
外部発表Yes

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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