202 citations · 376 across the 6 of their papers we have counts for
6 papers
Quasiparticle band structures, spontaneous polarization, and spin-splitting in noncentrosymmetric few-layer and bulk -GeSe
Han-gyu Kim, Hyoung Joon Choi
Group-IV monochalcogenides have attracted much attention due to their potential of ferroelectric and multiferroic properties. Recently, centrosymmetric gamma-phase GeSe in a double…
Quasiparticle band structures of bulk and few-layer PdSe2 from first-principles GW calculations
Han-gyu Kim, Hyoung Joon Choi
We performed first-principles density functional theory (DFT) and GW calculations to investigate electronic structures of bulk and few-layer PdSe2. We obtained the quasiparticle ba…
γ-GeSe:a new hexagonal polymorph from group IV-VI monochalcogenides
Sol Lee, Joong-Eon Jung, Han-gyu Kim +12
The family of group IV-VI monochalcogenides has an atomically puckered layered structure, and their atomic bond configuration suggests the possibility for the realization of variou…
Single-Crystalline Metallic Films Induced by van der Waals Epitaxy on Black Phosphorus
Yangjin Lee, Han-gyu Kim, Tae Keun Yun +11
The properties of metal-semiconductor junctions are often unpredictable because of non-ideal interfacial structures, such as interfacial defects or chemical reactions introduced at…
Thickness dependence of work function, ionization energy, and electron affinity of Mo and W dichalcogenides from DFT and GW calculations
Han-gyu Kim, Hyoung Joon Choi
Transition-metal dichalcogenides (TMDs) are promising for two-dimensional (2D) semiconducting devices and novel phenomena. For 2D applications, their work function, ionization ener…
Enhanced graphitic domains of unreduced graphene oxide and the interplay of hydration behaviour and catalytic activity
Tobias Foller, Rahman Daiyan, Xiaoheng Jin +15
Previous studies indicate that the properties of graphene oxide (GO) can be significantly improved by enhancing its graphitic domain size through thermal diffusion and clustering o…