School of Materials Science and Engineering, Shanghai University
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DOI:
10.7502/j.issn.1674-3962.2016.08.03
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Abstract:
Tranditional energy-saving windows work just by blocking solar energy (solar control coated glass), thermal radiation (Low-E glass) or thermal convection (hollow glass), while smart energy-saving windows could change their optical performances under a given stimulus such as temperature, electrical filed, gas, and light irradiation, et. al., which would endue them the ability to control the heat enter house, bringing higher energy-saving efficiency. Chromic materials is the core of smart energy-saving windows, including organic and inorganic materials. Compare to organic ones, inorganic chromic materials show advantages in age resistance, stability metachrosis and thermal stability, is the main materials of current smart energy-saving windows. This paper reviews the research progress of four sorts of inorganic materials (thermochromic, electricochromic, gasochromic and photochromic), including their development, preparation technology, mechanism of discoloration or energy-saving, current problem and their prospects.