364 citations · 1.5k across the 7 of their papers we have counts for
7 papers
Bright visible light emission from graphene
Young Duck Kim, Hakseong Kim, Yujin Cho +18
Graphene and related two-dimensional materials are promising candidates for atomically thin, flexible, and transparent optoelectronics. In particular, the strong light-matter inter…
Ordered Growth of Topological Insulator Bi2Se3 Thin Films on Dielectric Amorphous SiO2 by MBE
Sahng-Kyoon Jerng, Kisu Joo, Youngwook Kim +7
Topological insulators (TIs) are exotic materials which have topologically protected states on the surface due to the strong spin-orbit coupling. However, a lack of ordered growth…
Methane as an effective hydrogen source for single-layer graphene synthesis on Cu foil by plasma enhanced chemical vapor deposition
Yong Seung Kim, Jae Hong Lee, Young Duck Kim +8
A single-layer graphene is synthesized on Cu foil in the absence of H2 flow by plasma enhanced chemical vapor deposition (PECVD). In lieu of an explicit H2 flow, hydrogen species a…
Surface versus bulk state in topological insulator Bi2Se3 under environmental disorder
Matthew Brahlek, Yong Seung Kim, Namrata Bansal +2
Topological insulators (TIs) are predicted to be composed of an insulating bulk state along with conducting channels on the boundary of the material. In Bi2Se3, however, the Fermi…
Thickness-dependent bulk properties and weak anti-localization effect in topological insulator Bi2Se3
Yong Seung Kim, Matthew Brahlek, Namrata Bansal +7
We show that a number of transport properties in topological insulator (TI) Bi2Se3 exhibit striking thickness-dependences over a range of up to five orders of thickness (3 nm - 170…
Epitaxial growth of topological insulator Bi2Se3 film on Si(111) with atomically sharp interface
Namrata Bansal, Yong Seung Kim, Eliav Edrey +10
Atomically sharp epitaxial growth of Bi2Se3 films is achieved on Si (111) substrate with MBE (Molecular Beam Epitaxy). Two-step growth process is found to be a key to achieve inter…
Thickness-independent transport channels in topological insulator Bi2Se3 thin films
Namrata Bansal, Yong Seung Kim, Matthew Brahlek +2
With high quality topological insulator (TI) Bi2Se3 thin films, we report thickness-independent transport properties over wide thickness ranges. Conductance remained nominally cons…