Liquid Metals & Low-Melting Alloys

Metals that flow. Systems that endure.

EMDP Lab primarily studies liquid metals and low-melting-point alloys as adaptable platforms for energy transport, soft electronics, and advanced materials processing.

We engineer alloy composition, interfaces, and phase transitions to turn fluid or easily processed metals into reliable device functions.

Reflective liquid metal flowing around a crystalline low-melting alloy specimen — Phase behavior, interface control, and processing come together in one materials platform.

Materials & Process

Build the material system

Students work on synthesis, formulation, interfacial control, and process tuning rather than only running downstream tests.

Characterization

Prove what changed

Electrical, thermal, and reliability measurements are treated as evidence for mechanism and process quality, not just a checklist.

Translation

Connect to devices and output

The research is framed so material advances can support functioning devices, credible claims, and eventually strong publications.

Liquid-metal microchannel embedded in a flexible transparent interconnect — Liquid-metal channels maintain a conductive path while soft interconnects bend and stretch.

Deep-sea mission equipment in a harsh marine environment — Deep-sea pressure magnifies small interfacial failures.

Satellite operating in the space environment — Space adds thermal cycling, low pressure, and long-duration reliability demands.

Theme 01

Energy Transmission in Extreme Environments

Problem. Electric energy transmission in deep-sea, space, and deformable systems requires interconnects that survive pressure, temperature variation, low-pressure conditions, and repeated mechanical stress.

Approach. The lab studies materials selection, interface engineering, and fabrication routes that preserve conductivity while reducing thermal and mechanical mismatch across the structure.

Define failure modes in harsh mechanical and thermal environments.
Develop robust interconnect fabrication strategies for long-duration use.
Benchmark reliability with conditions that map to realistic deployment.

Deep Sea Space Soft Interconnects Reliability

Two ion species moving through a porous polymer network toward an electrode — Polymer-network structure controls ion pathways and local concentration.

Selective ion boosting system and ion transport concept — Selective ion boosting enables functions beyond electronic transport.

Soft via processing and polymer-compatible routing — Polymer-compatible processing connects material behavior to a working device.

Theme 02

Ion-Based Energy Control in Polymer Systems

Problem. Ionic transport is slower than electronic transport, but ion concentration gradients and ion-polymer interactions can create useful memory, thermal, and adaptive behaviors that standard systems do not offer.

Approach. The lab investigates ion-gel composition, polymer-network structure, and 3D processing conditions so ionic dynamics can be tuned into stable and controllable device functions.

Engineer ion transport pathways inside polymer matrices.
Connect processing conditions to switching and thermal response.
Translate ionic effects into practical sensing and control functions.

Ion Gels Polymer Matrix Memory Effects Thermoelectric

Liquid metal at the interface of a wide-bandgap semiconductor wafer — Liquid-metal-assisted interfaces can open more accessible routes to wide-bandgap materials.

Liquid-metal composite processing route for power electronics — Composite design links liquid-metal processing to high-power device structures.

Liquid-metal-assisted extrusion process footage. No audio.

Theme 03

Wide-Bandgap Routes for High-Power Electronics

Problem. Demand from electric vehicles, AI infrastructure, and power systems is pushing beyond conventional silicon, but scalable routes for materials such as GaN and SiC remain a core challenge.

Approach. The lab explores liquid-metal-assisted processing in ambient environments to lower fabrication barriers while maintaining the interfaces and structures needed for high-performance device modules.

Address material constraints for high-voltage and high-temperature operation.
Use liquid-metal-enabled fabrication under more accessible conditions.
Target processing paths that can scale beyond isolated demonstrations.

GaN SiC Liquid Metal High Power

Student fit

Find a research direction you can own

If one of these themes is a match, the application process can focus quickly on defining a realistic first project and milestone.

Discuss a Project Meet the Team

Contact

Talk through a potential project

333, Techno jungang-daero, Hyeonpung-eup, Dalseong-gun, Daegu, Republic of Korea, 42988

hodh123@dgist.ac.kr

If you are interested in one of these themes, leave your email and the lab can follow up.