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.
Bibliographical noteFunding Information:
This research is supported by the National Research Foundation, Prime Minister’s Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme. The author Peh Yew Keat thanks the financial support from the NTU-JTC Industrial Infrastructure Innovation Centre Singapore.
© 2017 Elsevier Inc.
- Acid etching: Smart window
- Surface engineering
- Thermochromic properties
- Vanadium dioxide