39 citations · 58 across the 5 of their papers we have counts for
12 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…
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…
First-Principles Study on Material Properties and Stability of Inorganic Halide Perovskite Solid Solutions CsPb(IBr) towards High Performance Perovskite Solar Cells
Chol-Jun Yu, Un-Hyok Ko, Suk-Gyong Hwang +4
All-inorganic halide perovskites have attracted a great interest as a promising light harvester of perovskite solar cells due to their enhanced chemical stability. In this work we…
Computational Prediction of Structural, Electronic, Optical Properties and Phase Stability of Double Perovskites K2SnX6 (X = I, Br, Cl)
Un-Gi Jong, Chol-Jun Yu, Yun-Hyok Kye
Vacancy-ordered double perovskites K2SnX6 (X = I, Br, Cl) attract significant research interest due to their potential application as light-absorbing materials in perovskite solar…