The Flexible Electronic Reflection Smart Windows for Automobiles and Architecture

Area of Science:

• Materials Science
• Electrochemistry
• Device Engineering

Background:

• High-viscosity gel electrolytes hinder the development of large-area flexible devices.
• Existing electrolytes pose challenges for practical applications in flexible electronics.

Purpose of the Study:

• To introduce an in situ polymerization route for electrolytes in reversible metal electrodeposition (RME) devices.
• To advance the practical application of flexible electronic reflection devices (F-ERD).

Main Methods:

• In situ polymerization of quasi-solid-state electrolytes.
• Fabrication and testing of flexible electronic reflection devices (F-ERD).
• Evaluation of mechanical properties, optical performance, and durability under bending cycles.

Main Results:

• The in situ polymerized electrolytes significantly improved device mechanical properties and safety.
• F-ERD demonstrated an 81.6% visible light modulation range and 88.3% reflectivity, with minimal degradation after 1000 bending cycles.
• Successfully fabricated the largest flexible RME device (171 cm²), showcasing potential for automotive smart windows and energy-efficient buildings.

Conclusions:

• This research establishes a foundation for applying RME technology on flexible surfaces.
• The developed F-ERD offers significant energy-saving potential and superior temperature management for vehicles and buildings.