95 citations · 336 across the 10 of their papers we have counts for
10 papers
Room temperature self-assembly of cation-free guanine quartet network nucleated from Mo-induced defect on decorated Au(111) with graphene nanoribbons
Amirreza Ghassami, Elham Oleiki, Dong Yeon Kim +3
Guanine-quadruplex, consisting of several stacked guanine-quartets (GQs), has emerged as an important category of novel molecular targets with applications from nanoelectronic devi…
Sparse Gaussian Process Potentials: Application to Lithium Diffusivity in Superionic Conducting Solid Electrolytes
Amir Hajibabaei, Chang Woo Myung, Kwang S. Kim
For machine learning of interatomic potentials a scalable sparse Gaussian process regression formalism is introduced with a data-efficient on-the-fly adaptive sampling algorithm. W…
Liquid-liquid-like phase transitions between high, mid, and low density phases in confined water
Saeed Pourasad, Amir Hajibabaei, Chang Woo Myung +1
Liquid-liquid phase transition (LLPT) in supercooled water has been a long-standing controversial issue. We show simulation results of real stable first-order phase transitions bet…
Anharmonicity-driven Rashba co-helical excitons break quantum efficiency limitation
Chang Woo Myung, Kwang S. Kim
Closed-shell light-emitting diodes (LEDs) suffer from the internal quantum efficiency (IQE) limitation imposed by optically inactive triplet excitons. Here we show an undiscovered…
La-Doped BaSnO Electron Transport Layer for Perovskite Solar Cells
Chang Woo Myung, Geunsik Lee, Kwang S. Kim
Due to the photo-instability and hysteresis of TiO electron transport layer (ETL) in perovskite solar cells (PSCs), novel electron transport materials are highly demanded. Here…
Rashba-Dresselhaus Effect in Inorganic/Organic Lead Iodide Perovskite Interfaces
Chang Woo Myung, Saqib Javaid, Kwang S. Kim +1
Despite the imperative importance in solar-cell efficiency, the intriguing phenomena at the interface between perovskite solar-cell and adjacent carrier transfer layers are hardly…
Drift-induced modifications to the dynamical polarization of graphene
Mohsen Sabbaghi, Hyun-Woo Lee, Tobias Stauber +1
The response function of graphene is calculated in the presence of a constant current across the sample. For small drift velocities and finite chemical potential, analytic expressi…
Orbital selective Fermi surface shifts and mechanism of high T superconductivity in correlated AFeAs (A=Li,Na)
Geunsik Lee, Hyo Seok Ji, Yeongkwan Kim +9
Based on the dynamical mean field theory (DMFT) and angle resolved photoemission spectroscopy (ARPES), we have investigated the mechanism of high superconductivity in stoichi…
Nonstationary theory of magnetic field induced current for molecular spin nanojunction
M. Jouravlev, Kwang S. Kim
For the study of molecular spin junctions, we take into account two types of couplings between the molecule and the metal leads: (i) electron transfer that gives rise to net curren…
Carbon nanotube, graphene, nanowire, and molecule-based electron and spin transport phenomena using the non-equilibrium Green function method at the level of first principles theory
Woo Youn Kim, Kwang S. Kim
Based on density functional theory (DFT), we have developed algorithms and a program code to investigate the electron transport characteristics for a variety of nanometer scaled de…