A review of transparent-reflective switchable glass technologies for building facades

Shi Wun Tong, Wei Peng Goh, Xiaohu Huang and Changyun Jiang

Renewable and Sustainable Energy Reviews, 2021, vol. 152, issue C

Abstract: Transparent-reflective switchable (TRS) glass is an emerging technology that provides active control of solar radiation. Efficient TRS glasses have advantages over other smart windows, such as traditional electrochromic glasses, for radiant energy control because they modulate the sunlight transmission based on light reflection, which prevents unnecessary indoor heating by sunlight through the fenestrations. The high translucence tunability not only allows the optimization of indoor temperature, it also provides glare control for building occupants’ visual comfort. There are several aspects, however, that require further improvements to accelerate the commercialization of TRS glasses. This review aims to validate four state-of-the-art TRS glass technologies as ideal energy-efficient building glazing, by comparing their key optical switch response, challenges and potential solutions. With further technical revolutions being made in new materials, device configuration and low-cost manufacturing processes, TRS glasses are touted to be essential elements in climate-adaptive building envelopes.

Keywords: Solar radiation management; Smart window; Switchable mirror; Switchable glass; Transparent-reflective switchable; Window glazing; Energy-saving; Metal hydride; Cholesteric liquid crystal; Reversible electrodeposition mirror; Micro-shutter (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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DOI: 10.1016/j.rser.2021.111615

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