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Cited 58 time in webofscience Cited 63 time in scopus
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Clean Transfer of Wafer-Scale Graphene via Liquid Phase Removal of Polycyclic Aromatic Hydrocarbons SCIE SCOPUS

Title
Clean Transfer of Wafer-Scale Graphene via Liquid Phase Removal of Polycyclic Aromatic Hydrocarbons
Authors
Kim, HHKang, BSuk, JWLi, NKim, KSRuoff, RSLee, WHCho, K
Date Issued
2015-05
Publisher
AMER CHEMICAL SOC
Abstract
Pentacene (C22H14), a polycyclic aromatic hydrocarbon, was used as both supporting and sacrificing layers for the clean and doping-free graphene transfer. After successful transfer of graphene to a target substrate, the pentacene layer was physically removed from the graphene surface by using intercalating organic solvent. This solvent-mediated removal of pentacene from graphene surface was investigated by both theoretical calculation and experimental studies with various solvents. The uses of pentacene and appropriate intercalation solvent enabled graphene transfer without forming a residue from the supporting layer. Such residues tend to cause charged impurity scattering and unintentional graphene doping effects. As a result, this clean graphene exhibited extremely homogeneous surface potential profiles over a large area. A field-effect transistor fabricated using this graphene displayed a high hole (electron) mobility of 8050 cm(2)N.s (9940 cm(2)N.s) with a nearly zero Dirac point voltage.
URI
https://oasis.postech.ac.kr/handle/2014.oak/37848
DOI
10.1021/NN5066556
ISSN
1936-0851
Article Type
Article
Citation
ACS NANO, vol. 9, no. 5, page. 4726 - 4733, 2015-05
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조길원CHO, KIL WON
Dept. of Chemical Enginrg
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