scispace - formally typeset
S

Sung-Yool Choi

Researcher at KAIST

Publications -  230
Citations -  10401

Sung-Yool Choi is an academic researcher from KAIST. The author has contributed to research in topics: Graphene & Graphene nanoribbons. The author has an hindex of 46, co-authored 210 publications receiving 8675 citations. Previous affiliations of Sung-Yool Choi include Hanyang University & Korea University of Science and Technology.

Papers
More filters
Journal ArticleDOI

Switching terahertz waves with gate-controlled active graphene metamaterials

TL;DR: It is demonstrated that substantial gate-induced persistent switching and linear modulation of terahertz waves can be achieved in a two-dimensional metamaterial, into which an atomically thin, gated two- dimensional graphene layer is integrated.
Journal ArticleDOI

Switching teraherz waves with gate-controlled active graphene metamaterials

TL;DR: In this paper, the gate-induced persistent switching and linear modulation of terahertz waves can be achieved in a two-dimensional artificial material, referred to as a metamaterial, into which an atomically thin, gated twodimensional graphene layer is integrated.
Journal ArticleDOI

Graphene oxide thin films for flexible nonvolatile memory applications.

TL;DR: The microscopic origin of the bipolar resistive switching behavior was elucidated and is attributed to rupture and formation of conducting filaments at the top amorphous interface layer formed between the graphene oxide film and the top Al metal electrode, via high-resolution transmission electron microscopy and in situ X-ray photoemission spectroscopy.
Journal ArticleDOI

Effective Liquid-Phase Exfoliation and Sodium Ion Battery Application of MoS2 Nanosheets

TL;DR: A facile liquid-phase exfoliation method is reported to improve theExfoliation efficiency for single-layer MoS2 sheets in 1-methyl-2-pyrrolidinone (NMP) with a sodium hydroxide (NaOH) assistant and stable operation of sodium-ion battery is demonstrated by using the exfoliated MoS1-rGO composite as anode materials.
Journal ArticleDOI

Versatile carbon hybrid films composed of vertical carbon nanotubes grown on mechanically compliant graphene films.

TL;DR: This research highlights the need to understand more fully the interaction between materials science and nanofiltration, as well as the types of materials that can be incorporated into electronics and telecommunications systems.