Solar Light Management Enabled by Dual-Responsive Smart Window
Dongxu Ma1, Lei Chen1, Fu Fan1
1College of Mechanical and Vehicle Engineering, National Engineering Research Center for High-Efficiency Grinding, Hunan University, Changsha410082, China.
ACS Applied Materials & Interfaces
|December 12, 2022
Summary
This study introduces a dual-responsive smart window using thermoresponsive hydrogel and a transparent heater. It effectively manages solar light across UV to infrared wavelengths for energy savings and privacy.
Area of Science:
- Materials Science
- Energy Science
- Optoelectronics
Background:
- Smart windows are crucial for energy efficiency and privacy but face challenges like low transmittance and limited modulation.
- Existing smart window technologies often involve complex fabrication or limited spectral control.
Purpose of the Study:
- To develop a dual-responsive smart window with broad solar light management capabilities.
- To overcome limitations of current smart windows regarding performance and complexity.
Main Methods:
- Fabrication of a smart window combining a reversible thermoresponsive hydrogel with a ZnO/Ag/ZnO multilayer transparent heater.
- Integration of thermochromic and transparent conductive film properties for tunable optical performance.
Main Results:
- Achieved solar light modulation across the 200-2500 nm range (UV to infrared).
- Demonstrated high luminous transmittance (81.7%) and luminous modulation (81.6%).
- Exhibited excellent solar modulation (62.9%) and effective temperature regulation in outdoor tests.
Conclusions:
- The developed smart window offers a simple yet effective solution for solar light management.
- This technology shows significant potential for energy management and climate control in buildings.
- Dual-responsiveness (thermochromic and electrochromic) enhances functionality for diverse environmental conditions.
Keywords:
energy savingprivacy protectionsmart windowsolar light managementtunable optical propertiesMore Related Videos
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