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Room-Temperature Liquid Metals for Flexible Electronic Devices.

Guixuan Lu1, Erli Ni2, Yanyan Jiang1

  • 1Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, Shandong, 250061, China.

Small (Weinheim an Der Bergstrasse, Germany)
|October 24, 2023
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Summary

Room-temperature gallium-based liquid metals offer unique properties for flexible electronics. This review explores their advancements, applications, and future potential in this rapidly developing field.

Keywords:
flexible electronicsliquid metalspatterningsintering

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Area of Science:

  • Materials Science
  • Electronics Engineering

Background:

  • Room-temperature gallium-based liquid metals (RT-GaLMs) exhibit remarkable properties like fluidity, conductivity, stretchability, self-healing, and biocompatibility.
  • These characteristics make RT-GaLMs highly suitable for manufacturing advanced flexible electronic devices.

Purpose of the Study:

  • To review recent advancements in RT-GaLMs for flexible electronics.
  • To elucidate the principles governing RT-GaLM processing and applications.
  • To explore diverse applications and future directions in this emerging field.

Main Methods:

  • Literature review of RT-GaLM research.
  • Analysis of physicochemical properties (rheological, wetting, adhesion) and their tuning.
  • Exploration of processing techniques and application principles.

Main Results:

  • RT-GaLMs can be tailored by composition and oxidation for specific applications.
  • Key properties like conductivity and self-healing are crucial for flexible electronics.
  • Diverse applications include self-healing circuits, flexible sensors, energy harvesting, and epidermal electronics.

Conclusions:

  • RT-GaLMs are promising materials for next-generation flexible electronics.
  • Further research is needed to overcome current challenges and unlock full potential.
  • This review provides a critical analysis to advance RT-GaLM technology.