A Dual-Responsive Nanocomposite toward Climate-Adaptable Solar Modulation for Energy-Saving Smart Windows

2017 ◽  
Vol 9 (7) ◽  
pp. 6054-6063 ◽  
Author(s):  
Heng Yeong Lee ◽  
Yufeng Cai ◽  
Shuguang Bi ◽  
Yen Nan Liang ◽  
Yujie Song ◽  
...  
Keyword(s):  
Energy Saving ◽  
Solar Modulation ◽  
Smart Windows ◽  
Dual Responsive

Thermochromic Hydrogels with Dynamic Solar Modulation and Regulatable Critical Response Temperature for Energy‐Saving Smart Windows

2021 ◽  
pp. 2109597
Author(s):  
Gang Xu ◽  
Huan Xia ◽  
Pengyu Chen ◽  
Wei She ◽  
Hanning Zhang ◽  
...  
Keyword(s):  
Energy Saving ◽  
Solar Modulation ◽  
Smart Windows ◽  
Critical Response

scholarly journals Energy-Efficient Smart Window Based on Thermochromic Hydrogel with Ultrahigh Visible Transparency and Unprecedented Infrared Transmittance Modulation

2021 ◽  
Author(s):  
Rong Zhang ◽  
Bo Xiang ◽  
Min Feng ◽  
Liru Xia ◽  
Lei Xu ◽  
...  
Keyword(s):  
Energy Saving ◽  
Superior Performance ◽  
Significant Advance ◽  
Solar Modulation ◽  
Smart Window ◽  
Smart Windows ◽  
Responsive Materials ◽  
Infrared Transmittance ◽  
Potential Applications ◽  
Glass Panels

Abstract Both high visible transparency and strong solar modulating ability are highly required for energy-saving smart windows, but conventional responsive materials usually have low transparency and narrow solar transmittance range. Herein, we report a significant advance toward the design and fabrication of responsive smart windows by trapping novel V0.8W0.2O2@SiO2 doped poly(N-isopropyl acrylamide) (PNIPAm) thermochromic liquid hydrogel within two glass panels. The smart window is highly transparent to allow solar transmittance at low temperatures, while turns opaque automatically to cut off solar energy gain when exposed in sunlight. With a remarkably low content (1.0wt‰) of dopant, V0.8W0.2O2@SiO2/PNIPAm (VSP) hydrogels exhibit ultrahigh luminous transmittance Tlum of 92.48% and solar modulation ∆Tsol of 77.20%. The superior performance is mainly attributed to that V0.8W0.2O2@SiO2 doping induces PNIPAm particles’ size reduction and internal structure change. W-doping decreases the phase transition temperature (Tc) of VO2 from 68 ºC to ~30 ºC (close to the Tc of PNIPAm), contributing to an unprecedented infrared transmittance modulation. Especially, the smart window shows excellent energy-saving during daytime outdoor demonstrations where practically achievable cooling temperature reaches up to 15.1 ºC. In addition, the smart window exhibits outstanding stability, as embodied by unchanged optical performance even after 100 transparency-opaqueness reversible cycles. This new type of thermochromic hydrogel offering unique advantages of shape-independence, scalability together with soundproof functionality promises potential applications in energy-saving buildings and greenhouses.

Tailoring Broad-Band-Absorbed Thermoplasmonic 1D Nanochains for Smart Windows with Adaptive Solar Modulation

2021 ◽  
Vol 13 (4) ◽  
pp. 5634-5644
Author(s):  
Min Guo ◽  
Qiaoqi Yu ◽  
Xingchi Wang ◽  
Wanxuan Xu ◽  
Yi Wei ◽  
...  
Keyword(s):  
Broad Band ◽  
Solar Modulation ◽  
Smart Windows

Self-Regulation of Infrared Using a Liquid Crystal Mixture Doped with Push–Pull Azobenzene for Energy-Saving Smart Windows

2021 ◽  
Vol 13 (4) ◽  
pp. 5028-5033
Author(s):  
Seung-Won Oh ◽  
Seung-Min Nam ◽  
Sang-Hyeok Kim ◽  
Tae-Hoon Yoon ◽  
Wook Sung Kim
Keyword(s):  
Liquid Crystal ◽  
Energy Saving ◽  
Self Regulation ◽  
Smart Windows ◽  
Crystal Mixture

Energy-Saving Smart Windows with HPC/PAA Hybrid Hydrogels as Thermochromic Materials

2021 ◽  
Author(s):  
Liangmiao Zhang ◽  
Hui Xia ◽  
Fang Xia ◽  
Yi Du ◽  
Yupeng Wu ◽  
...  
Keyword(s):  
Energy Saving ◽  
Smart Windows ◽  
Hybrid Hydrogels

Hydrogel smart windows

2020 ◽  
Vol 8 (20) ◽  
pp. 10007-10025 ◽  
Author(s):  
Yang Zhou ◽  
Xiaoxiao Dong ◽  
Yuanyuan Mi ◽  
Fan Fan ◽  
Quan Xu ◽  
...  
Keyword(s):  
Energy Saving ◽  
Recent Progress ◽  
Light Transmittance ◽  
Solar Light ◽  
Smart Windows

Smart windows are a promising way to modulate solar light transmittance, which is crucial for energy saving buildings. We provide an overview of the recent progress in hydrogel-based smart windows.

Metal oxides in energy-saving smart windows

2018 ◽  
pp. 341-360 ◽  
Author(s):  
Yanfang Wang ◽  
Bingwei Chen ◽  
Yusong Zhu ◽  
Lijun Fu ◽  
Yuping Wu ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Energy Saving ◽  
Smart Windows

Influence of partial pressure of oxygen on thermochromic performance of VO2 thin films by RF magnetron sputtering

2019 ◽  
Vol 33 (28) ◽  
pp. 1950349 ◽  
Author(s):  
Pengfei Guo ◽  
Caijuan Liu ◽  
Junhui Liu ◽  
Ruoping Li ◽  
Mingju Huang
Keyword(s):  
Magnetron Sputtering ◽  
Partial Pressure ◽  
Rf Magnetron Sputtering ◽  
Solar Modulation ◽  
Partial Pressure Of Oxygen ◽  
Smart Windows ◽  
Glass Substrates ◽  
Partial Pressures ◽  
Phase Surface ◽  
Vo2 Thin Films

In order to obtain a material with high solar modulation ability [Formula: see text] and crystalline quality, [Formula: see text] films were prepared on quartz glass substrates using RF magnetron sputtering under various oxygen partial pressures. Their phase, surface, transmittance, and film sheet resistance properties were analyzed. As the oxygen partial pressure increased, the luminous transmittance [Formula: see text] of the film increased to as high as 55.6%, while the [Formula: see text] first increased to a maximum of 10.8% and then decreased. This paper is a meaningful aid in the application of [Formula: see text] films to smart windows.

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