title: A Facile Route for Patterned Growth of Metal-Insulator Carbon Lateral Junction through One-Pot Synthesis.
abstract: Precise graphene patterning is of critical importance for tailor-made and sophisticated two-dimensional nanoelectronic and optical devices. However, graphene-based heterostructures have been grown by delicate multistep chemical vapor deposition methods, limiting preparation of versatile heterostructures. Here, we report one-pot synthesis of graphene/amorphous carbon (a-C) heterostructures from a solid source of polystyrene via selective photo-cross-linking process. Graphene is successfully grown from neat polystyrene regions, while patterned cross-linked polystyrene regions turn into a-C because of a large difference in their thermal stability. Since the electrical resistance of a-C is at least 2 orders of magnitude higher than that for graphene, the charge transport in graphene/a-C heterostructure occurs through the graphene region. Measurement of the quantum Hall effect in graphene/a-C lateral heterostructures clearly confirms the reliable quality of graphene and well-defined graphene/a-C interface. The direct synthesis of patterned graphene from polymer pattern could be further exploited to prepare versatile heterostructures.
authors.affiliation: National Creative Research Initiative Centre for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology , Pohang 790-784, Republic of Korea.
authors.forename: Beomjin
authors.initials: B
authors.lastname: Park
authors.affiliation: Department of Chemistry, College of Natural Sciences, Seoul National University , Seoul 151-747, Republic of Korea.|School of Physics and Astronomy, University of Manchester , Manchester M13 9PL, United Kingdom.|Center for Electricity & Magnetism, Korea Research Institute of Standards and Science , Daejeon 305-340, Republic of Korea.
authors.forename: Jaesung
authors.initials: J
authors.lastname: Park
authors.affiliation: Department of Chemistry and KI for the NanoCentury, KAIST , Daejeon 305-701, Korea.|Centre for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS) , Daejeon 305-701, Republic of Korea.|Center for Nanosafety Metrology, Korea Research Institute of Standards and Science , Daejeon 305-340, Republic of Korea.
authors.forename: Jin Gyeong
authors.initials: JG
authors.lastname: Son
authors.affiliation: Department of Chemistry, College of Natural Sciences, Seoul National University , Seoul 151-747, Republic of Korea.|School of Physics and Astronomy, University of Manchester , Manchester M13 9PL, United Kingdom.
authors.forename: Yong-Jin
authors.initials: YJ
authors.lastname: Kim
authors.affiliation: Department of Chemistry, Pohang University of Science and Technology , Pohang 790-784, Republic of Korea.|Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798, Republic of Korea.
authors.forename: Seong Uk
authors.initials: SU
authors.lastname: Yu
authors.affiliation: School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798, Republic of Korea.
authors.forename: Hyo Ju
authors.initials: HJ
authors.lastname: Park
authors.affiliation: Center for Electricity & Magnetism, Korea Research Institute of Standards and Science , Daejeon 305-340, Republic of Korea.
authors.forename: Dong-Hun
authors.initials: DH
authors.lastname: Chae
authors.affiliation: National Creative Research Initiative Centre for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology , Pohang 790-784, Republic of Korea.
authors.forename: Jinseok
authors.initials: J
authors.lastname: Byun
authors.affiliation: National Creative Research Initiative Centre for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology , Pohang 790-784, Republic of Korea.
authors.forename: Gumhye
authors.initials: G
authors.lastname: Jeon
authors.affiliation: Department of Chemistry and KI for the NanoCentury, KAIST , Daejeon 305-701, Korea.|Centre for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS) , Daejeon 305-701, Republic of Korea.
authors.forename: Sung
authors.initials: S
authors.lastname: Huh
authors.affiliation: School of Electrical and Electronic Engineering, Yonsei University , Seoul 120-749, Republic of Korea.
authors.forename: Seoung-Ki
authors.initials: SK
authors.lastname: Lee
authors.affiliation: School of Physics and Astronomy, University of Manchester , Manchester M13 9PL, United Kingdom.
authors.forename: Artem
authors.initials: A
authors.lastname: Mishchenko
authors.affiliation: National Creative Research Initiative Centre for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology , Pohang 790-784, Republic of Korea.
authors.forename: Seung
authors.initials: S
authors.lastname: Hyun
authors.affiliation: Center for Nanosafety Metrology, Korea Research Institute of Standards and Science , Daejeon 305-340, Republic of Korea.
authors.forename: Tae Geol
authors.initials: TG
authors.lastname: Lee
authors.affiliation: Department of Chemistry and KI for the NanoCentury, KAIST , Daejeon 305-701, Korea.|Centre for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS) , Daejeon 305-701, Republic of Korea.
authors.forename: Sang Woo
authors.initials: SW
authors.lastname: Han
authors.affiliation: School of Electrical and Electronic Engineering, Yonsei University , Seoul 120-749, Republic of Korea.
authors.forename: Jong-Hyun
authors.initials: JH
authors.lastname: Ahn
authors.affiliation: School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798, Republic of Korea.
authors.forename: Zonghoon
authors.initials: Z
authors.lastname: Lee
authors.affiliation: Center for Nanometrology, Korea Research Institute of Standards and Science , Daejeon 305-340, Republic of Korea.
authors.forename: Chanyong
authors.initials: C
authors.lastname: Hwang
authors.affiliation: School of Physics and Astronomy, University of Manchester , Manchester M13 9PL, United Kingdom.
authors.forename: Konstantin S
authors.initials: KS
authors.lastname: Novoselov
authors.affiliation: Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798, Republic of Korea.
authors.forename: Kwang S
authors.initials: KS
authors.lastname: Kim
authors.affiliation: Department of Chemistry, College of Natural Sciences, Seoul National University , Seoul 151-747, Republic of Korea.
authors.forename: Byung Hee
authors.initials: BH
authors.lastname: Hong
authors.affiliation: National Creative Research Initiative Centre for Smart Block Copolymers, Department of Chemical Engineering, Pohang University of Science and Technology , Pohang 790-784, Republic of Korea.
authors.forename: Jin Kon
authors.initials: JK
authors.lastname: Kim
keywords: amorphous carbon; bottom-up growth; graphene; graphene growth from polymer; graphene-based heterostructure