214 citations · 788 across the 38 of their papers we have counts for
6 papers · 1 filter
Self-consistent one-electron equation including exchange and correlation in terms of equivalent function and phase norm: calculation for ground and excited states in a unified way
Chol Jong, Byong-Il Ri, Chol-Jun Yu +4
We present an alternative one-electron equation for resolving many-electron problem to one-electron approximation and including the exchange and correlation effects in an analytica…
Mixed eldfellite compounds \ce{Na(Fe_{1/2}M_{1/2})(SO4)2} (M = Mn, Co, Ni): A new family of high electrode potential cathodes for the sodium-ion battery
Gum-Chol Ri, Song-Hyok Choe, Chol-Jun Yu
Natural abundance of sodium and its similar behavior to lithium triggered recent extensive studies of cost-effective sodium-ion batteries (SIBs) for large-scale energy storage syst…
Ab initio design of drug carriers for zoledronate guest molecule using phosphonated and sulfonated calix[4]arene and calix[4]resorcinarene host molecules
Yong-Man Jang, Chol-Jun Yu, Jin-Song Kim +1
Monomolecular drug carriers based on calix[n]-arenes and -resorcinarenes containing the interior cavity can enhance the affinity and specificity of the osteoporosis inhibitor drug…
Influence of water intercalation and hydration on chemical decomposition and ion transport in methylammonium lead halide perovskites
Un-Gi Jong, Chol-Jun Yu, Gum-Chol Ri +4
The use of methylammonium (MA) lead halide perovskites \ce{CH3NH3PbX3} (X=I, Br, Cl) in perovskite solar cells (PSCs) has made great progress in performance efficiency during recen…
Critical role of water in defect aggregation and chemical degradation of perovskite solar cells
Yun-Hyok Kye, Chol-Jun Yu, Un-Gi Jong +2
The chemical stability of methylammonium lead iodide (\ce{MAPbI3}) under humid conditions remains the primary challenge facing halide perovskite solar cells. We investigate defect…
Ab initio study of sodium cointercalation with diglyme molecule into graphite
Chol-Jun Yu, Song-Bok Ri, Song-Hyok Choe +3
The cointercalation of sodium with the solvent organic molecule into graphite can resolve difficulty of forming the stage-I Na-graphite intercalation compound, which is a predomina…