Faculty & Research
What topics are studied in the Department of Physics and Chemistry?
The Department of Physics and Chemistry deals with convergence sciences, harmonizing the basic sciences, investigating the basic characteristics of matter through chemistry and physics, with applied sciences. Our academics are oriented toward cutting-edge convergence science encompassing physics, chemistry, biology and material sciences, and students explore new materials, biomaterials, nano materials, functional materials, flexible materials and other core areas important to progress in state-of-the-art sciences and industry.
What career opportunities are there for graduates of the Department of Physics and Chemistry?
Graduates holding advanced degrees from the Department of Physics and Chemistry may become professors or researchers at universities in Korea and abroad, or find employment in government-funded research institutes (Korea Research Institute of ChemicalTechnology and the Korea Research Institute of Standards and Science, etc.), private firms (Samsung Electronics, LG Electronics, SK Hynix, etc.), and public corporations. DGIST also operates a student-initiated research and entrepreneurship program with support from local government, further diversifying graduates’ career options.
Kwon, Yong Seung
Quantum Functional Materials Lab.
양자 기능성 물질 연구실l권용성
One of the main research interests is to discover new functional materials like iron based high Tc superconductors, and thermoelectric materials. High quality single crystals are grown by using Bridgeman and flux methods. Successfully grown single crystals are characterized through extensive measurements of electrical, magnetic, thermal, structural and optical properties under low temperatures, high magnetic fields and high pressures.
We, Xlab, study X materials to improve the quality of life. Now, we delve into basic science as well as engineering to discover breakthroughs for #Semiconductor, #Energy, and #Sensor. We are especially interested in studying the multifunctional devices in the forms of films and nanostructures. We also endeavor to develop experimental tools to study electrical, magnetic, optical, and chemical properties of emerging X materials.
Future Semiconductor Nanophotonics Lab
미래 반도체 나노포토닉스 연구실l조창희
Research fields in Future Semiconductor Nanophotonics Laboratory include ‘Future Semiconducting Materials’, ‘Quantum Information Devices’, and ‘Light-Matter Interactions’. We explore new science and technologies in emerging semiconducting materials by tailoring the light-matter interactions. To this end, we pursue our studies to understand optical physics in various photonic systems such as optical micro-cavities based on 2D semiconductors and perovskites.
Computational Materials Theory Group
We use computational approaches to design new functional materials and advance our fundamental understanding of condensed matter and nanomaterials. Theoretical methods range from first-principles calculations (density functional theory) to data-driven approaches (machine learning). Therefore, our research is at the intersection of materials physics, chemistry, and computer science. Specific areas of focus include: computational design of functional materials for energy and information applications; simulation of complex systems using machine-learned potentials; use of generative AI for materials science; thermoelectricity in liquids; and “phase” transitions in intermediate-size systems, such as nanoclusters and small proteins.
Asymmetric Organic Synthesis and Drug Synthesis Lab.
비대칭 유기합성 및 의약품 합성 연구실l정병혁
Our group focuses on the research of transition metal catalysis derived mainly from earth-abundant metals such as copper and nickel. We aim to develop unprecedented chemical transformations, which significantly enhance the economy and the selectivity to access a target chemical product. We pursue to unveil the core chemistry of developed catalysis and apply them to the synthesis of drug and natural products.
Our research group aims to develop porous functional materials, mainly metal-organic frameworks (MOFs), metal-organic polyhedral (MOPs), and metal-organic aerogels (MOAs). In MOFs, MOPs, and MOAs, metal clusters as the joints are interconnected to multitopic organic ligands in the network structures. Thus, their physicochemical properties are highly tailorable through the judicious combinations of the building blocks. Further, the crystalline nature of MOFs facilitates in-depth study of the structure- property relationships. We have been tried to harness these advantages for their applications in gas sorption, ion exchanges, catalysis, and sensing.
Kim, Seong Kyun
Sustainable Chemistry Lab.
The research aim of our research group is development of brand-new materials for sustainable future. Currently, we are interested in following projects – water treatment & seawater desalination materials, Catalytic upcycling of fossil-based plastics, and biomass upcycling.
Spin NanoTech Lab.
We are an experimental research group with an aim to understand and develop functional novel materials with exotic properties due to the interactions of spins and electrons. We explore broad range of nanostructured material systems including metals, semiconductors, and oxides to study their electric and magnetic properties.
Topological Quantum Device
위상 양자소자 연구실l김영욱
The goal of our research is to investigate the topological quantum property of two-dimensional electron systems with extraordinarily low levels of disorder. In order to unlock their full potential, we will make unprecedented quality quantum device using an assembly of heterostructures consisting of several layers of different 2D materials by exploiting van der Waals forces. Then, we will control the properties of subjecting the sample to high magnetic field and ultralow temperatures. Finally, we will discover quantum phenomena and build a topological quantum circuit.
Novel Quantum Materials Laboratory
재미있는 양자물질 실험실l박기성
We are interested in novel quantum materials. These include high-temperature superconductors that are difficult to explain, topological quantum materials that can be explained but are difficult to find in reality, and magnetic materials useful in academic and industrial fields. We synthesize them in a single crystal or polycrystalline form using the flux method, the chemical vapor transport method, etc. In addition, we study their physical properties, such as atomic structure, electrical properties, magnetic properties, and thermal properties. Let’s start by saying, “There is such a wonderful material in the world, which we have made in our own laboratory! This is interesting because …”.
Our main areas of interest are biophysics in living cells (B-team) and chemistry reactions (C-team) observed under the microscope at the single-molecular level. We are researching interdisciplinary studies in the fields of microscopy, computational science, chemistry, and biology. We are developing imaging and manipulating nanotechnologies, machine learning algorithms for receptor dynamics and their functions in a spatiotemporal and quantitative manner to better understand how cells exploit various stimuli and signaling pathways combined and orchestrated to control a diverse array of cellular processes in widely different spatial and temporal domains.
Bioinspired Organic Materials Laboratory
생체모사 유기소재 연구실l홍선기
Catecholic/polyphenolic moieties are involved in various molecular interactions that mediate the adhesion, cohesion, coloration, and others of organic materials in nature. We design novel biomaterials by mimicking the unique chemical structures of these catecholic/polyphenolic biomaterials to address the current unmet needs in biomedical engineering.
Kim, Aaram J.
Quantum Many-Body Theory Group
Based on the symbiotic relation between developing quantum many-body algorithms and extending knowledge on emergent physics, we aim to provide the numerically exact results on the long-standing problems of strongly correlated systems, including the unconventional superconductors, frustrated spin systems, and light-matter-coupled systems. We have expertise in the quantum Monte Carlo methods, the dynamical mean-field theory, and the Feynman diagrammatic theory.
Organic synthesis and Catalysis Lab.
유기합성 및 촉매 연구실l이성기
Organic synthesis and catalysis lab is aiming to develop new catalysts, reagents, and reaction systems and apply them to prepare complicated organic molecules. We are interested in radical and ionic reactions including asymmetric synthesis using organo- and transition metal catalysts. The rational design of organic molecules is the essential theme of this laboratory to solve current issues in organic chemistry.
Jeong, Nak Cheon
Nano-space Chemistry Lab.
Our laboratory’s leading research is about metal-organic framework (MOF) materials, a subset of crystalline porous materials built by the self-assembly of metal ions and organic linkers. Currently, we are interested in the reduction/oxidation of transition metal ions by coordination bonding-mediated electron transfer reactions. Also, our studies focus on various methods to activate the MOF materials, such as chemical, microwave, and laser activations. Intrigued by the true nature of chemical bondings, our group members are profoundly investigating weak metal-halogen coordination and hydrogen bondings that propagate through the nanospace.
FemtoLab for Advanced Energy Materials
에너지물질 반응동력학 연구실l성주영
We develop and utilize the most advanced spectroscopy techniques to elucidate how charge carriers/excitons/ions behave in new energy materials such as organic semiconductors, perovskites, quantum dots etc. Understanding photophysical properties of various energy materials is the first step toward developing and utilizing novel energy materials. By achieving femtosecond time resolution and nanoscale spatial resolution, we provide unprecedented optical and electronic properties of next generation energy materials.
NanoBioEngineering and Spintronics.
We are working on the fields of Spintronics and nano-micro-devices, exchange biased Planar Hall magnetoresistance sensors and industrial applications. Also our research interests skate the intersection between nano-Spintronics and bio-medical engineering, directed from microscopic biochemical diagnosis of Cardiovascular disease, to mesoscopic cellular diagnosis using micro-magnetophoresis platform, and finally to macroscopic vital signals analysis of vascular system.
Spin Phenomena for Information Nano-devices Lab.
스핀정보 나노소자 연구실l유천열
Main goals of our researches are finding and studying exotic physical/magnetic phenomena related with the next generation memory and logic devices, which have superb performances over the current Si-based semiconductors.
Low-dimensional Topological Matter Laboratory
저차원 위상물질 연구실l서정필
Scanning Tunneling microscopy presents a powerful technique to study topography and local density of states of materials in nanometer scale. The goal of research is to visualize the quantum effect in the quantum functional materials and to analyze how the electrons interact each other in various experimental conditions answering the interesting questions of superconductivity, heavy fermions and topological phase of materials and so on.
Light and Matter Theory Lab.
광물성 이론 연구실l이재동
Materials theory is a way to understand properties of emergent materials using theoretical approach. We use computational methods performed on model calculation and first-principle density functional theory to study new physics of the materials.
Our lab. is focusing on extremely light, flexible and bio-compatible devices and sensors that can monitor bio-information without our recognition. Ultra-flexible, sweat permeable devices for E-skin electronics & wearable devices are our current interested research in order to minimize the uncomfortableness during the long term health monitoring.