Jungsoo Lee

Materials Science Engineer

Functional Material Inks
Research

Functional Material Inks

All-inorganic material ink, Additive-free ink

Additive Manufacturing
Research

Additive Manufacturing

Direct ink writing, Fused deposition modelling

Optimal Designs
Research

Optimal Designs

Finite element method, Topology optimization, AI

01

Welcome!

I am a materials scientist currently working as a postdoctoral researcher at Functional Inorganic Materials Design & Manufacturing Lab (FIMDEM) at POSTECH.

My work focuses on thermoelectric (TE) energy harvesting and the design-to-manufacture pipeline that connects multiphysics modeling to printable devices. I enjoy turning optimization results into practical prototypes and benchmarking them against real operating conditions.

Research Interests: Thermoelectric devices, Topology optimization, Finite element analysis, 3D printing of functional materials, printable inks synthesis, device design & nanoparticle synthesis, mechanical alloying.

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02

Education

2021–2024

Ph.D., Materials Science & Engineering

Ulsan National Institute of Science and Technology (UNIST), Korea
Advisor: Jae Sung Son
2019–2021

M.S., Materials Science & Engineering

Ulsan National Institute of Science and Technology (UNIST), Korea
Advisor: Jae Sung Son
2013–2019

B.S., Materials Science & Engineering

Ulsan National Institute of Science and Technology (UNIST), Korea
03

Research experience

  • 03.2024–present
    Post Doctor Researcher
    Pohang University of Science and Technology (POSTECH), Republic of Korea
    Thermoelectrics, topology optimization, 3D printing.
  • 03.2019–02.2024
    Graduate Research Assistant
    Ulsan National Institute of Science and Technology (UNIST), Republic of Korea
    Printable thermoelectric inks, Thermoelectric device design.
  • 07.2019-12.2019
    Lab manager in Nanomaterials Science and Engineering Lab
    Ulsan National Institute of Science and Technology (UNIST), Republic of Korea
    Management in lab safety, instrumental maintenance, and training.
  • 12.2018-02.2019
    Undergraduate Research Assistant
    Ulsan National Institute of Science and Technology (UNIST), Republic of Korea
    Nanoparticle synthesis, ligand-exchange.
04

Publications

[12]Topology optimization of thermoelectric generator for maximum power efficiency

Preprint(2025)
Jungsoo Lee†, Seong Eun Yang†, Seungjun Choo†, Haiyang Li, Hyunjin Han, Keonkuk Kim, Yae Eun Park, Hayoung Chung*, Jae Sung Son*
LinkPDF

Keywords: Topology optimization, TEG

[11]Geometric design of Cu2Se-based thermoelectric materials for enhancing power generation

Nature Energy(2024)
Seungjun Choo†, Jungsoo Lee†, Bengisu Şişik, Sung-Jin Jung, Keonkuk Kim, Seong Eun Yang, Seungki Jo, Changhyeon Nam, Sangjoon Ahn, Ho Seong Lee, Han Gi Chae, Seong Keun Kim, Saniya LeBlanc*, Jae Sung Son*
LinkPDF

Keywords: Cu2Se, Device design

[10]Heat-Dissipation Design and 3D Printing of Ternary Silver Chalcogenide-Based Thermoelectric Legs for Enhancing Power Generation Performance

Advanced Science(2024)
Keonkuk Kim†, Seungjun Choo†, Jungsoo Lee†, Hyejin Ju, Soo-ho Jung, Seungki Jo, So-Hyeon Lee, Seongheon Baek, Ju-Young Kim, Kyung Tae Kim, Han Gi Chae, Jae Sung Son*
LinkPDF

Keywords: Ag-chalcogenide, 3D printing

[9]Ductile (Ag,Cu)2(S,Se,Te)-based auxetic metamaterials for sustainable thermoelectric power generation

Nano Energy(2024)
Seong Eun Yang†, Youngtaek Oh†, Jungsoo Lee, Seungheon Shin, So-Hyeon Lee, Keonkuk Kim, Changhyeon Nam, Sangjoon Ahn, Ju-young Kim*, Hayoung Chung*, and Jae Sung Son*
LinkPDF

Keywords: Auxetic metamaterial, Ag/Cu chalcogenide

[8]3D-printed functionally graded thermoelectric materials for enhanced power generation

Chemical Engineering Journal(2024)
Hyunjin Han†, Seong Eun Yang†, Jungsoo Lee, Keonkuk Kim, Changhyeon Nam, Seungki Jo, Sangjoon Ahn, and Jae Sung Son*
LinkPDF

Keywords: Functionally graded, 3D printing

[7]Doping-Induced Viscoelasticity in PbTe Thermoelectric Inks for 3D Printing of Power-Generating Tubes

Advanced Energy Materials(2021)
Jungsoo Lee, Seungjun Choo, Hyejin Ju, Jaehyung Hong, Seong Eun Yang, Fredrick Kim, Da Hwi Gu, Jeongin Jang, Gyeonghun Kim, Sangjoon Ahn, Ji Eun Lee, Sung Youb Kim, Han Gi Chae, Jae Sung Son*
LinkPDF

Keywords: PbTe, Ink rheology, 3D printing

[6]Cu2Se-based Thermoelectric Cellular Architectures for Efficient and Durable Power Generation

Nature Communications(2021)
Seungjun Choo†, Faizan Ejaz†, Hyejin Ju, Fredrick Kim, Jungsoo Lee, Seong Eun Yang, Gyeonghun Kim, Hangeul Kim, Seungki Jo, Seongheon Baek, Soyoung Cho, Keonkuk Kim, Ju-Young Kim, Sangjoon Ahn, Han Gi Chae*, Beomjin Kwon*, and Jae Sung Son*
LinkPDF

Keywords: Cu2Se, Cellular architecture

[5]Direct ink writing of three-dimensional thermoelectric microarchitectures

Nature Electronics(2021)
Fredrick Kim†, Seong Eun Yang†, Hyejin Ju†, Seungjun Choo, Jungsoo Lee, Gyeonghun Kim, Soo-ho Jung, Suntae Kim, Chaenyung Cha, Kyung Tae Kim, Sangjoon Ahn, Han Gi Chae*, and Jae Sung Son*
LinkPDF

Keywords: Direct ink writing, Microarchitecture

[4]Synthesis of Solution-Processed 2D Carbide MXene Flakes Using Highly Purified Precursors for Ink Applications

Nanoscale Advances(2021)
Shi-Hyun Seok, Seungjun Choo, Jinsung Kwak, Hye-Jin Ju, Ju-Hyung Han, Woo-Seok Kang, Joonsik Lee, Se-Yang Kim, Do Hee Lee, Jungsoo Lee, Jaewon Wang, Seunguk Song, Wook Jo, Byung Mun Jung, Han Gi Chae*, Jae Sung Son*, and Soon-Yong Kwon*
LinkPDF

Keywords: MXene, Ink

[3]Composition-segmented BiSbTe thermoelectric generator fabricated by multimaterial 3D printing

Nano Energy(2021)
Seong Eun Yang, Fredrick Kim, Faizan Ejaz, Gi Seung Lee, Hyejin Ju, Seungjun Choo, Jungsoo Lee, Gyeonghun Kim, Soo-ho Jung, Sangjoon Ahn, Han Gi Chae*, Kyung Tae Kim*, Beomjin Kwon*, Jae Sung Son*
LinkPDF

Keywords: BiSbTe, Multimaterial 3D printing

[2]Ordered Mesoporous Carbons with Graphitic Tubular Frameworks by Dual Templating for Efficient Electrocatalysis and Energy Storage

Angewandte Chemie International Edition(2020)
Du San Baek, Kyung Ah Lee, Jaehyuk Park, Jae Hyung Kim, Jungsoo Lee, June Sung Lim, So Young Lee, Tae Joo Shin, Hu Young Jeong, Jae Sung Son, Seok Ju Kang*, Jin Young Kim*, and Sang Hoon Joo*
LinkPDF

Keywords: Mesoporous carbon, Electrocatalysis, Energy storage

[1]Colloidal Suprastructures Self-Organized from Oppositely Charged All-Inorganic Nanoparticles

Chemistry of Materials(2020)
Da Hwi Gu, Jungsoo Lee, Hyeong Woo Ban, Gibok Lee, Minju Song, Wooyong Choi, Seongheon Baek, Hyewon Jeong, Song Yeul Lee, Yong Il Park*, and Jae Sung Son*
LinkPDF

Keywords: Colloidal suprastructure, All-inorganic nanoparticles

05

PATENTS

2025
[2]

THERMOELECTRIC SYSTEM AND THE FABRICATIOM METHOD THEREOF

KR 10-2025-0127599
2023
[1]

INK FOR THERMOELECTRIC MATERIAL AND THERMOELECTRIC MATERIAL MANUFACTURED USING THE SAME

KR 10-2022-0114219
06

Awards

2024

Samsung HumanTech Paper Award

🏆 Gold Prize
SAMSUNG
08

Contact

ljs0505@postech.ac.krGoogle ScholarinLinkedIn
Location: 67 Cheongam-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do
© 2025 Jungsoo Lee. All rights reserved.