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

doi:10.1016/j.jcis.2017.10.096

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

Institute of Chemistry

The Hebrew University of Jerusalem

Research output: Contribution to journal › Article › peer-review

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 (T_lum) and the enlarged solar modulating abilities (ΔT_sol). 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 language	English
Pages (from-to)	529-535
Number of pages	7
Journal	Journal of Colloid and Interface Science
Volume	512
DOIs	https://doi.org/10.1016/j.jcis.2017.10.096
State	Published - 15 Feb 2018

Keywords

Acid etching: Smart window
Surface engineering
Thermochromic properties
Vanadium dioxide

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Colloid and Surface Chemistry

Access to Document

10.1016/j.jcis.2017.10.096

Cite this

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

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.",

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AU - Magdassi, Shlomo

AU - Long, Yi

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AB - 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.

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KW - Thermochromic properties

KW - Vanadium dioxide

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