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20072025
most citedInfluence of halide composition on the structural, electronic, and optical properties of mixed CHNHPb(IBr) perovskites calculated using the virtual crystal approximation method

214 citations

Showing cond-mat.mtrl-sciShow all

23 papers · 1 filter

cond-mat.mtrl-sci2019★ 4 cited

First-principles study on luminescence properties of Eu-doped defect pyrochlore oxide KNbWOHO:Eu

Song-Hyok Choe, Chol-Jun Yu, Myong Choe +3

Defect pyrochlore oxides have attracted a great interest as promising luminescent materials due to their flexible composition and high electron/hole mobility. In this work, we inve…

cond-mat.mtrl-sci2019★ 16 cited

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…

cond-mat.mtrl-sci2019

Thermal conductivity of porous jennite by molecular dynamics method

Song-Nam Hong, Chol-Jun Yua, Un-Song Hwang +2

The thermal conductivity of porous jennite, as the major component of cement paste, and its porosity and temperature dependences are simulated by molecular dynamics methods using C…

cond-mat.mtrl-sci2019★ 18 cited

First-Principles Study on NaxTiO2 with Trigonal Bipyramid Structures: An Insight into Sodium-Ion Battery Anode Application

Song-Hyok Choe, Chol-Jun Yu, Kum-Chol Ri +4

Developing efficient anode materials with low electrode voltage, high specific capacity and superior rate capability is urgently required on the road to commercially viable sodium-…

cond-mat.mtrl-sci2018

Two-dimensional hybrid composites of SnS2 with graphene and graphene oxide for improving sodium storage: A first-principles study

Kum-Chol Ri, Chol-Jun Yu, Jin-Song Kim +1

Among the recent achievements of sodium-ion battery (SIB) electrode materials, hybridization of two-dimentional (2D) materials is one of the most interesting appointments. In this…

cond-mat.mtrl-sci2018

First-principles study on the chemical decomposition of inorganic perovskites \ce{CsPbI3} and \ce{RbPbI3} at finite temperature and pressure

Un-Gi Jong, Chol-Jun Yu, Yun-Hyok Kye +3

Inorganic halide perovskite \ce{Cs(Rb)PbI3} has attracted significant research interest in the application of light-absorbing material of perovskite solar cells (PSCs). Although th…