214 citations · 788 across the 38 of their papers we have counts for
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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…
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…
Defect physics in -doped from first-principles calculation
Yun-Hyok Kye, Chol-Jun Yu, Un-Gi Jong +2
Calcium fluoride has been widely used for light up-/down-conversion luminescence by accommodating lanthanide ions as sensitizers or activators. Especially, Yb-doped \ce{CaF2} exhib…
Interface Engineering in Hybrid Iodide CH3NH3PbI3 Perovskite Using Lewis Base and Graphene towards High Performance Solar Cells
Chol-Jun Yu, Yun-Hyok Kye, Un-Gi Jong +6
Perovskite solar cells have achieved a substantial breakthrough via advanced interface engineerings. Reports have emphasized that combining the hybrid perovskites with Lewis base a…
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-…