Mg-Doped VO2@ZrO2 Core−Shell Nanoflakes for Thermochromic Smart Windows with Enhanced Performance

Zuohao WEN, Yujie KE, Chengchen FENG, Shuliang FANG, Miuyang SUN, Xinghai LIU*, Yi LONG*

*Corresponding author for this work

Research output: Journal PublicationsJournal Article (refereed)peer-review

20 Citations (Scopus)

Abstract

The VO2-based smart windows can dynamically and reversibly adjust the indoor solar irradiation to reduce the energy consumption for building glasses. This paper reports the first successful preparation of Mg-doped VO2@ZrO2 core−shell nanocrystals with promoted thermochromic performance as well as tunable appearance and wettability. The achieved combination of Tlum of 52.4% and ∆Tsol of 7.1% is comparable to the best-reported results of VO2-based core−shell rod structures. The thickness of ZrO2 shell is tunable between 3 and 14 nm, resulting in a slightly hydrophobic surface and a slight color change toward blue-green and brighter produced films. The preparation method based on hydrothermal and UV-curing methods is facile. This work may inspire future development of VO2 synthesis, their structure−property, and the application the thermochromic films for energy-saving purposes in buildings or automobiles.

Original languageEnglish
Article number2001606
JournalAdvanced Materials Interfaces
Volume8
Issue number1
Early online date25 Nov 2020
DOIs
Publication statusPublished - 8 Jan 2021
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2020 Wiley-VCH GmbH

Funding

Z.W. and Y.K. contributed equally to this work. X.L. acknowledges the study is supported by the financial support of this work by NSAF (Grant No. 51776143). The use of SEM, XPS, TEM, and AFM was funded by the Open Subsidies for large‐scale Equipment of Wuhan University (Grant No. LF20181061). Y.L. thanks the funding support by the National Research Foundation, Prime Minister's Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme and Sino‐Singapore International Joint Research Institute for funding support.

Keywords

  • nanocrystals
  • solar energy
  • thermochromic
  • UV-curing
  • vanadium dioxide

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