214 citations · 788 across the 38 of their papers we have counts for
38 papers
Ab Initio Thermodynamic Study of PbI and CHNHPbI Surfaces in Reaction with CHNH Gas for Perovskite Solar Cells
Yun-Sim Kim, Chol-Hyok Ri, Yun-Hyok Kye +2
Hybrid organic-inorganic halide perovskites for photovoltaics have attracted research interest due to their unique material properties, but suffered from poor material stability. I…
Contrary Effect of B and N Doping into Graphene and Graphene Oxide Heterostructures with MoS on Interface Function and Hydrogen Evolution
Chol-Hyok Ri, Yun-Sim Kim, Kum-Chol Ri +2
Molybdenum disulfide (MoS) attracts attention as a high efficient and low cost photocatalyst for hydrogen production, but suffers from low conductance and high recombination ra…
Influence of M/A substitution on material properties of intermetallic compounds MSn (M = Fe, Co; A = Li, Na): A first-principles study
Chol-Jun Yu, Un-Song Hwang, Yong-Chol Pak +4
Iron and cobalt distannides \ce{MSn2} (M = Fe, Co) are regarded as a promising conversion-type anode material for lithium- and sodium-ion batteries, but their properties are not we…
Influence of Ti/V Cation-Exchange in NaTiO on Na-Ion Negative Electrode Performance: an Insight from First-Principles Study
Chol-Jun Yu, Suk-Gyong Hwang, Yong-Chol Pak +3
Sodium-titanate \ce{Na2Ti3O7} (NTO) is regarded as a highly promising anode material with a very low voltage for Na-ion batteries and capacitors, but suffered from relatively low s…
Manifestation of the thermoelectric properties in Ge-based halide perovskites
Un-Gi Jong, Chol-Jun Yu, Yun-Hyok Kye +2
In spite of intensive studies on the chalcogenides as conventional thermoelectrics, it remains a challenge to find a proper material with high electrical but low thermal conductivi…
Molecular dynamics study of the effect of moisture and porosity on thermal conductivity of tobermorite 14 Å
Song-Nam Hong, Chol-Jun Yu, Kum-Chol Ri +2
The effect of moisture and porosity on thermal conductivity of tobermorite 14 Å~as the major component of cement paste is studied by using molecular dynamics simulation with ClayFF…