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Shape Memory Polymers for Active Cell Culture
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Deformable Thermo-Responsive Smart Windows Based on a Shape Memory Polymer for Adaptive Solar Modulations.

Dan Li1, Chengzhi Zhou1,2, Yun Meng1

  • 1School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue,Singapore 639798, Singapore.

ACS Applied Materials & Interfaces
|December 17, 2021
PubMed
Summary
This summary is machine-generated.

New thermo-responsive smart windows use a shape-changing polymer to control sunlight. These butterfly-wing-like smart windows (BSW) offer improved solar modulation and luminous transmission for energy efficiency.

Keywords:
deformable surface morphologyshape memorysmart windowsthermo-responsive

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Area of Science:

  • Materials Science
  • Energy Science
  • Optics

Background:

  • Thermo-responsive smart windows are crucial for reducing building energy consumption and preventing solar cell overheating.
  • Conventional materials face limitations in balancing luminous transmission and solar modulation.
  • Deformable surface morphology presents an alternative strategy for effective solar transmission control.

Purpose of the Study:

  • To develop novel thermo-responsive smart windows with a deformable surface morphology.
  • To achieve custom-designed solar modulation (ΔTsol) and luminous transmission (Tlum) based on incident sunlight angles.
  • To introduce a new design strategy overcoming limitations of conventional smart window materials.

Main Methods:

  • Fabrication of butterfly-wing-like smart windows (BSW) using a thermo-responsive shape memory polymer and optical coating.
  • Investigating the reversible transformation from a flat to a tilted configuration upon heating.
  • Characterizing the optical performance, including luminous transmission and solar modulation.

Main Results:

  • The BSW demonstrates a high solar modulation (ΔTsol) of 32.6%.
  • The average luminous transmission (Tlum(average)) achieved was 64.5%.
  • The BSW exhibits tunable optical properties based on incident light angles.

Conclusions:

  • The developed BSW offers a promising solution for energy-efficient buildings and solar cell protection.
  • The deformable surface morphology strategy effectively enhances smart window performance.
  • This research provides a new mechanism for designing advanced thermo-responsive smart windows.