Dr. Edwin Tso’s paper featured as the inside front cover on Advanced Science

Dr. Edwin Tso’s paper titled “Near-Infrared-Activated Thermochromic Perovskite Smart Windows” has been published on Advanced Science (IF:16.806, DOI: https://doi.org/10.1002/advs.202106090) and featured as inside front cover in the Issue 14, Volume 9.

About the project:

Perovskite-based thermochromic smart windows that can change color have attracted much interest for their application in energy-efficient buildings. However, the high transition temperature hinders their practical application. Therefore, Dr Tso’s team designed a near-infrared (NIR) activated thermochromic perovskite window that enables reversible transition cycles at room temperature. Under natural sunlight (>700 W m−2), it efficiently harvests 78% NIR light to trigger the thermochromism of perovskites, blocking the heat gain from both the visible and NIR light. Meanwhile, it also exhibits a low mid-infrared emissivity of <0.3, suppressing thermal="" radiation="" to="" the="" indoor="" environment.="" a="" field="" test="" demonstrates="" that="" this="" smart="" window="" can="" reduce="" the="" indoor="" temperature="" by="" 8°c="" compared="" to="" a="" normal="" glass="" window="" at="" noon="" in="" hong="" kong.="" the="" near-room-temperature="" color="" change,="" multispectral="" thermal="" management,="" outstanding="" energy-saving="" ability,="" climate="" adaptability,="" and="" solution-based="" process="" of="" this="" window="" make="" it="" unique="" and="" promising="" for="" use="" as="" a="" new="" generation="" window="" technology="" in="">

Dr. Tso is the sole corresponding author of this paper. The first author is Mr. Liu Sai, a PhD student of SEE. The co-authors are Dr. Wang Ying and Prof. Yu Kin Man from the Department of Physics. Other co-authors are from the Hong Kong University of Science and Technology.