A novel multifunctional thermochromic structure with skin comfort design for smart window application

In this paper, we reported a VO2-based thermochromic window using bistratal glasses of TiO2 antireflection coating as well as Al: ZnO/SiO2 coatings, respectively. The thermochromic behavior of VO2 was modulated by TiO2 antireflection layers based on skin comfort design for the first time. The film t...

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Bibliographic Details
Published inSolar energy materials and solar cells Vol. 159; pp. 553 - 559
Main Authors Sun, GuangYao, Cao, Xun, Zhou, Huaijuan, Bao, Shanhu, Jin, Ping
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.01.2017
Elsevier BV
Subjects
Antireflection coatings
Design
Energy efficiency
Film thickness
Glass
Multifunctional
Silicon dioxide
Skin
Skin comfort
Solar radiation
Structural design
Structural engineering
Thermochromic
Thin film
Thin films
Titanium dioxide
Vanadium oxides
Windows & doors
Zinc oxide
Energy efficiency
Thermochromic
Multifunctional
Skin comfort
Thin film
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Summary:In this paper, we reported a VO2-based thermochromic window using bistratal glasses of TiO2 antireflection coating as well as Al: ZnO/SiO2 coatings, respectively. The thermochromic behavior of VO2 was modulated by TiO2 antireflection layers based on skin comfort design for the first time. The film thickness of TiO2(240nm)/VO2(70nm)/TiO2(10nm)/Glass structure has been optimized based on modulation of 1350 ~ 2500nm solar radiation by calculation. A remarkable improvement in mid-infrared reflectivity was obtained using Al: ZnO with SiO2 layer, and the film thickness has been optimized as SiO2 (~100nm)/Al: ZnO (300nm)/Glass to achieve a suitable integrated luminous transmittance. This two multilayered stacks were combined together with different orders to form a multifunctional window for energy efficient fenestration. This work provides a new insight for structural design of multilayer thin films and serves as starting points for developing novel coatings for windows with superior energy efficiency. •Thermochromic VO2 was modulated by TiO2 with a TiO2(240nm)/VO2(70nm)/TiO2(10nm)/Glass structure based on skin comfort design for the first time.•An optimized SiO2 (~100nm)/Al:ZnO (300nm)/Glass low-emission structure was computational simulated and deposited.•Smart window combining these two structure possesses the improved performance of 6.9% in solar modulating ability, >40% in integrated visible transmittance and >80% reflectivity in mid-infrared region.
ISSN:0927-0248
1879-3398
DOI:10.1016/j.solmat.2016.09.045