Sunlight-Induced Photo-Thermochromic Supramolecular Nanocomposite Hydrogel Film for Energy-Saving Smart Window

Solar RRL ◽  
2018 ◽  
Vol 2 (11) ◽  
pp. 1800204 ◽  
Author(s):  
Zuqiang Xu ◽  
Sai Wang ◽  
Xiao-Yu Hu ◽  
Juli Jiang ◽  
Xiaoqiang Sun ◽  
...  
Keyword(s):  
Energy Saving ◽  
Nanocomposite Hydrogel ◽  
Smart Window ◽  
Hydrogel Film

Chameleon-Inspired Energy-Saving Smart Window Responding to Natural Weather

2021 ◽  
Author(s):  
Zeqian Sun ◽  
Xinmin Xie ◽  
Wenlong Xu ◽  
Kun Chen ◽  
Yihan Liu ◽  
...  
Keyword(s):  
Energy Saving ◽  
Smart Window

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.

Green chitosan–carbon dots nanocomposite hydrogel film with superior properties

2015 ◽  
Vol 115 ◽  
pp. 238-245 ◽  
Author(s):  
Achyut Konwar ◽  
Neelam Gogoi ◽  
Gitanjali Majumdar ◽  
Devasish Chowdhury
Keyword(s):  
Carbon Dots ◽  
Nanocomposite Hydrogel ◽  
Hydrogel Film

Energy-Efficient Smart Window Based on Thermochromic Microgel with Ultrahigh Visible Transparency and Infrared Transmittance Modulation

2021 ◽  
Author(s):  
Rong Zhang ◽  
Bo Xiang ◽  
Yuchun Shen ◽  
Liru Xia ◽  
Lei Xu ◽  
...  
Keyword(s):  
Energy Saving ◽  
Energy Efficient ◽  
Smart Window ◽  
Smart Windows ◽  
Responsive Materials ◽  
Infrared Transmittance

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,...

Photochromic transparent wood for photo-switchable smart window applications

2019 ◽  
Vol 7 (28) ◽  
pp. 8649-8654 ◽  
Author(s):  
Lihong Wang ◽  
Yanjun Liu ◽  
Xiyun Zhan ◽  
Dan Luo ◽  
Xiaowei Sun
Keyword(s):  
Energy Saving ◽  
Thermal Insulation ◽  
Building Material ◽  
Optical Transmittance ◽  
Smart Window ◽  
High Toughness ◽  
High Optical Transmittance ◽  
Window Applications ◽  
Significant Attention

Transparent wood with high optical transmittance, excellent thermal insulation and high toughness has attracted significant attention as an energy-saving building material.

scholarly journals Energy Saving and Energy Generation Smart Window with Active Control and Antifreezing Functions

2022 ◽  
pp. 2105184
Author(s):  
Yingchun Niu ◽  
Yang Zhou ◽  
Daxue Du ◽  
Xiangcheng Ouyang ◽  
Ziji Yang ◽  
...  
Keyword(s):  
Energy Saving ◽  
Active Control ◽  
Energy Generation ◽  
Smart Window

Active and passive modulation of solar light transmittance in a hybrid thermochromic soft-matter system for energy-saving smart window applications

2018 ◽  
Vol 6 (26) ◽  
pp. 7054-7062 ◽  
Author(s):  
Xiao Liang ◽  
Mei Chen ◽  
Qian Wang ◽  
Shumeng Guo ◽  
Lanying Zhang ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Energy Saving ◽  
Vanadium Dioxide ◽  
Soft Matter ◽  
Light Transmittance ◽  
Solar Light ◽  
Light Control ◽  
Smart Window ◽  
Matter System ◽  
Window Applications

In this work, we promote a new hybrid liquid crystals/vanadium dioxide thermochromic system for solar light control and energy-saving smart window applications.

Sign in / Sign up

Export Citation Format

Share Document