Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/143851
Title: Efficient near infrared modulation with high visible transparency using SnO2 – WO3 nanostructure for advanced smart windows
Authors: Nguyen, Tam Duy
Yeo, Loo Pin
Kei, Tan Chiew
Mandler, Daniel
Magdassi, Shlomo
Tok, Alfred Iing Yoong
Keywords: Engineering::Materials
Issue Date: 2019
Source: Nguyen, T. D., Yeo, L. P., Kei, T. C., Mandler, D., Magdassi, S., & Tok, A. I. Y. (2019). Efficient near infrared modulation with high visible transparency using SnO2 – WO3 nanostructure for advanced smart windows. Advanced Optical Materials, 7(8), 1801389-. doi:10.1002/adom.201801389
Journal: Advanced Optical Materials
Abstract: Renewable energy technology and effective energy management are the most crucial factors to consider in the progress toward worldwide energy sustainability. Smart window technology has a huge potential in energy management as it assists in reducing energy consumption of indoor lighting and air‐conditioning in buildings. Electrochromic (EC) materials, which can electrically modulate the transmittance of solar radiation, are one of the most studied smart window materials. In this work, highly transparent SnO2 inverse opal (IO) is used as the framework to electrochemically deposit amorphous WO3 layer to fabricate hybrid SnO2–WO3 core–shell IO structure. The hybrid structure is capable of effective near infrared (NIR) modulation while maintaining high visible light transparency in the colored and bleached states. By varying the initial diameter of the polystyrene (PS) opal template and the WO3 electrodeposition time, optimal results can be obtained with the smallest PS diameter of 392 nm and 180 s WO3 electrodeposition. In its colored state, the 392‐SnO2–WO3‐180 core–shell IO structure shows ≈70% visible light transparency, 62% NIR blockage at 1200 nm, and ≈15% drop in NIR blocking stability after 300 cycles. The SnO2–WO3 core–shell IO structure in this study is a promising EC material for advanced smart window technology.
URI: https://hdl.handle.net/10356/143851
ISSN: 2195-1071
DOI: 10.1002/adom.201801389
Rights: This is the accepted version of the following article: Nguyen, T. D., Yeo, L. P., Kei, T. C., Mandler, D., Magdassi, S., & Tok, A. I. Y. (2019). Efficient near infrared modulation with high visible transparency using SnO2 – WO3 nanostructure for advanced smart windows. Advanced Optical Materials, 7(8), 1801389-. doi:10.1002/adom.201801389, which has been published in final form at https://doi.org/10.1002/adom.201801389. This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [https://authorservices.wiley.com/authorresources/Journal-Authors/licensing/self-archiving.html].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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