Surface engineering on continuous VO2 thin films to improve thermochromic properties: Top-down acid etching and bottom-up self-patterning

Ning Wang, Yew Keat Peh, Shlomo Magdassi, Yi Long*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Surface engineering is an effective method to improve the thermochromic performance of VO2. In this paper, an acid-etching top down method was proposed to tailor the VO2 surface morphology from the continuous dense-packed surface to patterned structure, which exhibited the enhanced integrated visible transmittance (Tlum) and the enlarged solar modulating abilities (ΔTsol). Moreover, a self-patterning approach was also illustrated to improve the thermochromic properties. The proposed surface engineering methods represent a facile and cost-effective approach for enhancing thermochromic properties that could promote the application of VO2 thin films in smart windows.

Original languageAmerican English
Pages (from-to)529-535
Number of pages7
JournalJournal of Colloid and Interface Science
Volume512
DOIs
StatePublished - 15 Feb 2018

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Inc.

Keywords

  • Acid etching: Smart window
  • Surface engineering
  • Thermochromic properties
  • Vanadium dioxide

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