title: Realization of continuous Zachariasen carbon monolayer.
abstract: Rapid progress in two-dimensional (2D) crystalline materials has recently enabled a range of device possibilities. These possibilities may be further expanded through the development of advanced 2D glass materials. Zachariasen carbon monolayer, a novel amorphous 2D carbon allotrope, was successfully synthesized on germanium surface. The one-atom-thick continuous amorphous layer, in which the in-plane carbon network was fullysp2-hybridized, was achieved at high temperatures (>900°C) and a controlled growth rate. We verified that the charge carriers within the Zachariasen carbon monolayer are strongly localized to display Anderson insulating behavior and a large negative magnetoresistance. This new 2D glass also exhibited a unique ability as an atom-thick interface layer, allowing the deposition of an atomically flat dielectric film. It can be adopted in conventional semiconductor and display processing or used in the fabrication of flexible devices consisting of thin inorganic layers.
authors.affiliation: Device Laboratory, Samsung Advanced Institute of Technology, Suwon 16674, Korea.
authors.forename: Won-Jae
authors.initials: WJ
authors.lastname: Joo
authors.affiliation: SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University, Suwon 16419, Korea.; National Graphene Institute, University of Manchester, Manchester M13 9PL, U.K.
authors.forename: Jae-Hyun
authors.identifier: 0000-0001-5117-8923
authors.initials: JH
authors.lastname: Lee
authors.affiliation: School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea.
authors.forename: Yamujin
authors.initials: Y
authors.lastname: Jang
authors.affiliation: School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea.
authors.forename: Seog-Gyun
authors.initials: SG
authors.lastname: Kang
authors.affiliation: Analytical Science Group, Samsung Advanced Institute of Technology, Suwon 16674, Korea.
authors.forename: Young-Nam
authors.identifier: 0000-0003-1740-7723
authors.initials: YN
authors.lastname: Kwon
authors.affiliation: Analytical Science Group, Samsung Advanced Institute of Technology, Suwon 16674, Korea.
authors.forename: Jaegwan
authors.initials: J
authors.lastname: Chung
authors.affiliation: Device Laboratory, Samsung Advanced Institute of Technology, Suwon 16674, Korea.
authors.forename: Sangyeob
authors.identifier: 0000-0002-9957-990X
authors.initials: S
authors.lastname: Lee
authors.affiliation: Device Laboratory, Samsung Advanced Institute of Technology, Suwon 16674, Korea.
authors.forename: Changhyun
authors.initials: C
authors.lastname: Kim
authors.affiliation: School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea.
authors.forename: Tae-Hoon
authors.initials: TH
authors.lastname: Kim
authors.affiliation: School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea.
authors.forename: Cheol-Woong
authors.identifier: 0000-0003-0475-8399
authors.initials: CW
authors.lastname: Yang
authors.affiliation: Device Laboratory, Samsung Advanced Institute of Technology, Suwon 16674, Korea.
authors.forename: Un Jeong
authors.initials: UJ
authors.lastname: Kim
authors.affiliation: Device Laboratory, Samsung Advanced Institute of Technology, Suwon 16674, Korea.
authors.forename: Byoung Lyong
authors.initials: BL
authors.lastname: Choi
authors.affiliation: SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University, Suwon 16419, Korea.; School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea.
authors.forename: Dongmok
authors.initials: D
authors.lastname: Whang
authors.affiliation: Device Laboratory, Samsung Advanced Institute of Technology, Suwon 16674, Korea.
authors.forename: Sung-Woo
authors.initials: SW
authors.lastname: Hwang
keywords: 2D glass; Amorphous; Chemical Vapor Deposition; Germanium; Thin film; Zachariasen carbon monolayer