Phase-change VO_(2)-based thermochromic smart windows  

作　　者：Cancheng Jiang Lanyue He Qingdong Xuan Yuan Liao Jian-Guo Dai Dangyuan Lei 

机构地区：[1]Department of Materials Science and Engineering,Centre for Functional Photonics,and Hong Kong Branch of National Precious Metals Material Engineering Research Centre,City University of Hong Kong,Kowloon,Hong Kong 999077,China [2]Department of Refrigeration and Cryogenics Engineering,Hefei University of Technology,193 Tunxi Road,Hefei 230009,China [3]Department of Architecture and Civil Engineering,City University of Hong Kong,Kowloon,Hong Kong 999077,China

出　　处：《Light(Science & Applications)》2024年第11期2489-2510,共22页光（科学与应用)（英文版）

基　　金：the financial support by the City University of Hong Kong through an ARG project(9667246);the Innovation and Technology Commission of Hong Kong through a Mainland-Hong Kong Joint Funding Scheme grant(MHP/162/22);the Research Grants Council of Hong Kong through a Collaborative Research Project Grant(C5050-22GF).

摘　　要：Thermochromic coatings hold promise in reducing building energy consumption by dynamically regulating the heat gain of windows,which are often regarded as less energy-efficient components,across different seasons.Vanadium dioxide(VO_(2))stands out as a versatile thermochromic material for smart windows owing to its reversible metal-toinsulator transition(MIT)alongside correlated structural and optical properties.In this review,we delve into recent advancements in the phase-change VO_(2)-based thermochromic coatings for smart windows,spanning from the macroscopic crystal level to the microscopic structural level(including elemental doping and micro/nanoengineering),as well as advances in controllable fabrication.It is notable that hybridizing functional elements/materials(e.g.,W,Mo/SiO_(2),TiN)with VO_(2)in delicate structural designs(e.g.,core-shell,optical cavity)brings new degrees of freedom for controlling the thermochromic properties,including the MIT temperature,luminous transmittance,solarenergy modulation ability and building-relevant multi-functionality.Additionally,we provide an overview of alternative chromogenic materials that could potentially complement or surpass the intrinsic limitations of VO_(2).By examining the landscape of emerging materials,we aim to broaden the scope of possibilities for smart window technologies.We also offer insights into the current challenges and prospects of VO_(2)-based thermochromic smart windows,presenting a roadmap for advancing this field towards enhanced energy efficiency and sustainable building design.In summary,this review innovatively categorizes doping strategies and corresponding effects of VO_(2),underscores their crucial NIRenergy modulation ability for smart windows,pioneers a theoretical analysis of inverse core-shell structures,prioritizes practical engineering strategies for solar modulation in VO_(2)films,and summarizes complementary chromogenic materials,thus ultimately advancing VO_(2)-based smart window technologies with a fresh perspective.

关 键 词：SMART DOPING LUMINOUS 

分 类 号：TQ637.5[化学工程—精细化工] TU113[建筑科学—建筑理论]