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Bismuth-Tin Core-Shell Particles From Liquid Metals: A Novel, Highly Efficient Photothermal Material that Combines
Dogu Seyda1, Orcun Dincer1,2, Duygu İnce1
1Department of Metallurgical and Materials Engineering, Middle East Technical University (METU), Ankara, 06800, Türkiye.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|October 8, 2024
Summary
Hybrid bismuth-tin (BiSn) liquid metal particles with a core-shell structure exhibit high photothermal efficiency. These novel materials offer a scalable, non-carbon alternative for solar water evaporation and polymer actuators.
Area of Science:
- Materials Science
- Nanotechnology
- Photothermal Applications
Background:
- Bismuth-tin (BiSn) liquid metal particles possess a unique core-shell structure.
- Individual bismuth or tin lacks photothermal properties.
- Nano-oxides offer broadband absorption, while metallic particles provide high light-to-heat conversion.
Purpose of the Study:
- To investigate hybrid bismuth-tin (BiSn) liquid metal particles for photothermal applications.
- To optimize the core-shell structure for enhanced photothermal performance.
- To explore applications in solar water evaporation and polymer actuators.
Main Methods:
- Fabrication of hybrid BiSn liquid metal particles with a core-shell structure.
- Characterization of optical absorption and photothermal conversion efficiency.
- Demonstration of particle performance in solar water evaporation and polymer actuators.
Main Results:
- Optimized BiSn particles achieve 85% broadband light absorption.
- Photothermal conversion efficiency exceeds 90%.
- Successful application as solar absorbers for water evaporation and in NIR-responsive polymer actuators.
Conclusions:
- BiSn liquid metal-derived core-shell particles are novel, highly efficient photothermal materials.
- These particles offer a scalable, non-carbon alternative for solar energy applications.
- The unique properties enable diverse applications including polymer actuators with rapid response times.
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