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Lee, Geunsik (이근식)

Department
Department of Chemistry(화학과)
Website
https://sites.google.com/view/gslee2017/home
Lab
Computational Research on Electronic Structure and Transport in Condensed Materials (응집물질 전자구조 및 전자전도 연구실)
Research Keywords
open quantum system, electron correlation, dynamical mean field theory, 2D materials, non-equilibrium electron transport, magnetic ordering, strongly correlated system, water splitting, perovskite solar cell
Research Interests
Physical and chemical properties of materials are governed by electromagnetic interaction between charged species. Particles heavier than few-nucleon can be easily described by classical equations of motion. However, electrons require a special treatment because of their uncertainty in exhibiting quantitative properties. The most prevailing theory in last one century has been the quantum mechanics where distribution of electrons is probabilistically given by a squared wave function. Once we know the distribution of electrons or the initial wave function, all the microscopic behavior later on, in principle, can be predicted by using the Schrodinger equation of motion and quantum statistical mechanics. But, practically, it is still challenging to describe system of many particles interacting among themselves, namely the complex system, where only qualitative behavior has been known with simplified models. For reliable and quantitative description of physical and chemical properties of materials, we need high-performance computation power together with numerical approaches solving quantum mechanics. By using various state-of-the-art numerical methods, our group is mainly oriented to studying novel phenomena of nanoscale systems, related to next-generation electronic/spintronic/optical devices and high-efficient energy/environment catalysts. In addition, we develop a numerical code to describe strongly correlated systems in non-equilibrium steady-state situation.
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Issue DateTitleAuthor(s)TypeViewAltmetrics
2021-09The impact of molecular orientation on carrier transfer characteristics at a phthalocyanine and halide perovskite interfaceJavaid, Saqib; Lee, GeunsikARTICLE30 The impact of molecular orientation on carrier transfer characteristics at a phthalocyanine and halide perovskite interface
2021-07Facile room-temperature self-assembly of extended cation-free guanine-quartet network on Mo-doped Au(111) surfaceGhassami, Amirreza; Oleiki, Elham; Kim, Dong Yeon, et alARTICLE88 Facile room-temperature self-assembly of extended cation-free guanine-quartet network on Mo-doped Au(111) surface
2021-05Graphene Antiadhesion Layer for the Effective Peel-and-Pick Transfer of Metallic Electrodes toward Flexible ElectronicsJeong, Gyujeong; Seo, Jihyung; Kim, Yongchul, et alARTICLE77 Graphene Antiadhesion Layer for the Effective Peel-and-Pick Transfer of Metallic Electrodes toward Flexible Electronics
2021-04Tip-Induced Nano-Engineering of Strain, Bandgap, and Exciton Funneling in 2D SemiconductorsKoo, Yeonjeong; Kim, Yongchul; Choi, Soo Ho, et alARTICLE95 Tip-Induced Nano-Engineering of Strain, Bandgap, and Exciton Funneling in 2D Semiconductors
2021-04First principles and machine learning based superior catalytic activities and selectivities for N-2 reduction in MBenes, defective 2D materials and 2D pi-conjugated polymer-supported single atom catalystsZafari, Mohammad; Nissimagoudar, Arun S.; Umer, Muhammad, et alARTICLE73 First principles and machine learning based superior catalytic activities and selectivities for N-2 reduction in MBenes, defective 2D materials and 2D pi-conjugated polymer-supported single atom catalysts
2021-03Triboelectric Charge-Driven Enhancement of the Output Voltage of BiSbTe-Based Thermoelectric GeneratorsKim, Sun-Woo; Yang, U. Jeong; Lee, Jae Won, et alARTICLE85 Triboelectric Charge-Driven Enhancement of the Output Voltage of BiSbTe-Based Thermoelectric Generators
2021-01Unprecedented electrocatalytic oxygen evolution performances by cobalt-incorporated molybdenum carbide microflowers with controlled charge re-distributionShah, Md Selim Arif Sher; Paidi, Vinod K.; Jung, Hyeonjung, et alARTICLE36 Unprecedented electrocatalytic oxygen evolution performances by cobalt-incorporated molybdenum carbide microflowers with controlled charge re-distribution
2020-12A high performance N-doped graphene nanoribbon based spintronic device applicable with a wide range of adatomsRezapour, M. Reza; Lee, Geunsik; Kim, Kwang S.ARTICLE92 A high performance N-doped graphene nanoribbon based spintronic device applicable with a wide range of adatoms
2020-09Immobilizing single atom catalytic sites onto highly reduced carbon hosts: Fe-N-4/CNT as a durable oxygen reduction catalyst for Na-air batteriesNoh, Woo Yeong; Kim, Eun Mi; Kim, Kwang Young, et alARTICLE138 Immobilizing single atom catalytic sites onto highly reduced carbon hosts: Fe-N-4/CNT as a durable oxygen reduction catalyst for Na-air batteries
2020-08A new class of ferromagnetic semiconductor: Copper molybdate organic-inorganic compound with phenanthroline organic linkersIslah-u-din; Chong, Shen, V; Jameson, Geoffrey B., et alARTICLE246 A new class of ferromagnetic semiconductor: Copper molybdate organic-inorganic compound with phenanthroline organic linkers
2020-08Unveiling 79-year-old ixene and its BN-doped derivativePati, Palas Baran; Jin, Eunji; Kim, Yohan, et alARTICLE274 Unveiling 79-year-old ixene and its BN-doped derivative
2020-05Transport gaps in ideal zigzag-edge graphene nanoribbons with chemical edge disorderLee, Geunsik; Shan, Bin; Svizhenko, Alexei, et alARTICLE219 Transport gaps in ideal zigzag-edge graphene nanoribbons with chemical edge disorder
2020-04Enhanced photoluminescence quantum yield of MAPbBr(3) nanocrystals by passivation using graphenePark, Youngsin; Jana, Atanu; Myung, Chang Woo, et alARTICLE196 Enhanced photoluminescence quantum yield of MAPbBr(3) nanocrystals by passivation using graphene
2020-03Zwitterionic Conjugated Surfactant Functionalization of Graphene with pH-Independent Dispersibility: An Efficient Electron Mediator for the Oxygen Evolution Reaction in Acidic MediaKim, Ungsoo; Cho, Yongjoon; Jeon, Dasom, et alARTICLE257 Zwitterionic Conjugated Surfactant Functionalization of Graphene with pH-Independent Dispersibility: An Efficient Electron Mediator for the Oxygen Evolution Reaction in Acidic Media
2020-03Ultrasensitive Plasmon-Free Surface-Enhanced Raman Spectroscopy with Femtomolar Detection Limit from 2D van der Waals HeterostructureSeo, Jihyung; Lee, Junghyun; Kim, Yongchul, et alARTICLE185 Ultrasensitive Plasmon-Free Surface-Enhanced Raman Spectroscopy with Femtomolar Detection Limit from 2D van der Waals Heterostructure
2020-02Edge functionalized graphene nanoribbons with tunable band edges for carrier transport interlayers in organic–inorganic perovskite solar cellsKim, Eun Mi; Javaid, Saqib; Park, Jong Hyeok, et alARTICLE169 Edge functionalized graphene nanoribbons with tunable band edges for carrier transport interlayers in organic–inorganic perovskite solar cells
2019-12Signature of multilayer growth of 2D layered Bi2Se3 through heteroatom-assisted step-edge barrier reductionKim, Yongsam; Lee, Geunsik; Li, Nannan, et alARTICLE292 Signature of multilayer growth of 2D layered Bi2Se3 through heteroatom-assisted step-edge barrier reduction
2019-11An effective approach to realize graphene based p-n junctions via adsorption of donor and acceptor moleculesRezapour, M. Reza; Lee, Geunsik; Kim, Kwang S.ARTICLE310 An effective approach to realize graphene based p-n junctions via adsorption of donor and acceptor molecules
2019-09Homogeneous Li deposition through the control of carbon dot-assisted Li-dendrite morphology for high-performance Li-metal batteriesHong, Dongki; Choi, Yuri; Ryu, Jaegeon, et alARTICLE338 Homogeneous Li deposition through the control of carbon dot-assisted Li-dendrite morphology for high-performance Li-metal batteries
2019-08Band gap tuning and excitonic effect in chloro‑fluorinated grapheneJavaid, Saqib; Akhtar, Muhammad Javed; Kim, Eun Mi, et alARTICLE342 Band gap tuning and excitonic effect in chloro‑fluorinated graphene

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