Seoul National Univ. DMSE
People
Faculty
Stephen Dongmin Kang
Assistant professor
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Mailstop
33-108
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Phone
880-1607
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Fax
none
- Homepage
Education
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2018
Ph.D. : Caltech, Department of Applied Physics and Materials Science
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2009
M.S. : Seoul National University, Department of Materials Science and Engineering
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2007
B.S. : Seoul National University, Department of Materials Science and Engineering
Career
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2023 - Current
Seoul National University, Department of Materials Science and Engineering, Assistant Professor
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2022-23
Stanford University, Department of Materials Science and Engineering USA Senior Staff Scientist
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2018-22
Stanford University, Department of Materials Science and Engineering USA Post-Doctoral Scholar
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2016-18
Northwestern University, Department of Materials Science and Engineering, Pre-Doctoral Scholar
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2010-13
Korea Research Institute of Standards & Science, Korea, Research Scientist
Research Interests
1. Mixed ionic-electronic conductors
- Elecrtrochemically active materials for energy storage such as in Li-ion batteries
- Kinetics: Charge-transfer reactions, chemical diffusion
- Fundamental transport phenomena, ion-electron coupling
2. Concentrated electrolytes (Liquid & Solid)
- Non-ideal behavior of Li+ and counter ions in concentrated electrolytes
- Minority carriers and chemical potential profiles in electrolytes (battery reliability)
3. Heavily doped semiconductors
- Materials for thermoelectric energy generation and solid-state cooling
- Conduction mechanism studies (scattering, grain boundaries, etc)
- Elecrtrochemically active materials for energy storage such as in Li-ion batteries
- Kinetics: Charge-transfer reactions, chemical diffusion
- Fundamental transport phenomena, ion-electron coupling
2. Concentrated electrolytes (Liquid & Solid)
- Non-ideal behavior of Li+ and counter ions in concentrated electrolytes
- Minority carriers and chemical potential profiles in electrolytes (battery reliability)
3. Heavily doped semiconductors
- Materials for thermoelectric energy generation and solid-state cooling
- Conduction mechanism studies (scattering, grain boundaries, etc)
Selected Publications
Papers
- "Contact Resistance of Carbon–Lix(Ni,Mn,Co)O2 Interfaces ", Advanced Energy Materials, 12 (2022)
- "Fictitious phase separation in Li layered oxides driven by electro-autocatalysis", Nature Materials, 20 (2021)
- “Compliant and stretchable thermoelectric coils for energy harvesting in miniature flexible devices”, Science Advances, 4 (2018)
- "Charge-transport model for conducting polymers", Nature Materials, 16 (2017)
- "Thermoelectric imaging of structural disorder in epitaxial graphene", Nature Materials, 12 (2013)
- "Contact Resistance of Carbon–Lix(Ni,Mn,Co)O2 Interfaces ", Advanced Energy Materials, 12 (2022)
- "Fictitious phase separation in Li layered oxides driven by electro-autocatalysis", Nature Materials, 20 (2021)
- “Compliant and stretchable thermoelectric coils for energy harvesting in miniature flexible devices”, Science Advances, 4 (2018)
- "Charge-transport model for conducting polymers", Nature Materials, 16 (2017)
- "Thermoelectric imaging of structural disorder in epitaxial graphene", Nature Materials, 12 (2013)
Lab Overview
Our philosophy is to focus on fundamental material properties and phenomena in areas highly relevant for energy applications such as electrochemical storage or thermoelectrics.
Even for materials prevalent in devices we use on a daily basis, it is not uncommon to find significant inconsistencies in our current understanding.
For instance, most of the overvoltage observed while cycling Li-ion battery electrodes cannot be entirely accounted for in a self-consistent manner,
showcasing our poor understanding on the microscopic kinetic processes. We aim to identify such knowledge gaps (the "scientific dept" in technology) and deliver improved understanding to the community.
Even for materials prevalent in devices we use on a daily basis, it is not uncommon to find significant inconsistencies in our current understanding.
For instance, most of the overvoltage observed while cycling Li-ion battery electrodes cannot be entirely accounted for in a self-consistent manner,
showcasing our poor understanding on the microscopic kinetic processes. We aim to identify such knowledge gaps (the "scientific dept" in technology) and deliver improved understanding to the community.