Novel Biphasically and Reversibly Transparent Phase Change Material to Solve the Thermal Issues in Transparent...

Area of Science:

• Materials Science
• Nanotechnology
• Thermal Engineering

Background:

• Transparent electronic systems face thermal management challenges due to rapid growth and lack of suitable solutions.
• Effective transparent thermal management materials are crucial for modern transparent electronics.
• Existing solutions often compromise optical transparency or thermal performance.

Purpose of the Study:

• To synthesize a novel, transparent, and thermally conductive composite material for transparent electronics.
• To investigate the thermal energy storage and optical properties of the developed composite.
• To evaluate the material's suitability for thermal management in transparent electronic devices.

Main Methods:

• Synthesis of a biphasic and reversible transparent polyethylene glycol (PEG)/epoxy resin (EP) composite for thermal energy storage (TPE-TES).
• Utilizing phase change properties of PEG and encapsulable properties of EP.
• Characterization using Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) to analyze phase dispersion and surface morphology.

Main Results:

• The TPE-TES composite exhibits high optical transparency due to energy-driven structural rearrangements and submicron phase dispersion of PEG and EP.
• A smooth surface morphology suppresses diffuse reflections, enhancing visible light penetration.
• The material demonstrates effective thermal energy storage, rapid temperature regulation, and improved spatial temperature uniformity.

Conclusions:

• The synthesized TPE-TES composite effectively addresses thermal bottlenecks in transparent electronics.
• Its unique combination of thermal energy storage and optical transparency makes it ideal for advanced electronic applications.
• The material's flexibility, stability, and processability allow its use as coatings or substrates in integrated electronic devices.