Procedure of removing polymer residues and its influences on electronic and structural characteristics of graphene

Youngkun Ahn; Hyein Kim; Young Hwan Kim; Yeonjin Yi; Seong Il Kim

doi:10.1063/1.4794900

Procedure of removing polymer residues and its influences on electronic and structural characteristics of graphene

Youngkun Ahn, Hyein Kim, Young Hwan Kim, Yeonjin Yi, Seong Il Kim

Department of Physics

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88 Citations (Scopus)

Abstract

Procedure of removing polymer residues by post-annealing and the effect on electronic properties of transferred monolayer graphene grown by chemical vapor deposition method are investigated using X-ray photoelectron spectroscopy and Raman spectroscopy. It is found that breaking the polymerization backbone bond induces effective removal of poly(methyl methacrylate) on the graphene surface by depolymerization, and decomposition of the carboxyl functional group involves reducing the level of p-doping of the graphene, while the annealing process leads to an increase in defects, and consequently, to oxidation that transforms the graphene into p-doped material.

Original language	English
Article number	091602
Journal	Applied Physics Letters
Volume	102
Issue number	9
DOIs	https://doi.org/10.1063/1.4794900
Publication status	Published - 2013 Mar 4

Bibliographical note

Funding Information:
This work was supported by the Korea Institute of Science and Technology (2E23273), (2E23150) and by the Converging Research Center Program conducted under the Ministry of Education, Science and Technology (2012K001280).

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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abstract = "Procedure of removing polymer residues by post-annealing and the effect on electronic properties of transferred monolayer graphene grown by chemical vapor deposition method are investigated using X-ray photoelectron spectroscopy and Raman spectroscopy. It is found that breaking the polymerization backbone bond induces effective removal of poly(methyl methacrylate) on the graphene surface by depolymerization, and decomposition of the carboxyl functional group involves reducing the level of p-doping of the graphene, while the annealing process leads to an increase in defects, and consequently, to oxidation that transforms the graphene into p-doped material.",

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T1 - Procedure of removing polymer residues and its influences on electronic and structural characteristics of graphene

AU - Ahn, Youngkun

AU - Kim, Hyein

AU - Kim, Young Hwan

AU - Yi, Yeonjin

AU - Kim, Seong Il

N1 - Funding Information: This work was supported by the Korea Institute of Science and Technology (2E23273), (2E23150) and by the Converging Research Center Program conducted under the Ministry of Education, Science and Technology (2012K001280).

PY - 2013/3/4

Y1 - 2013/3/4

N2 - Procedure of removing polymer residues by post-annealing and the effect on electronic properties of transferred monolayer graphene grown by chemical vapor deposition method are investigated using X-ray photoelectron spectroscopy and Raman spectroscopy. It is found that breaking the polymerization backbone bond induces effective removal of poly(methyl methacrylate) on the graphene surface by depolymerization, and decomposition of the carboxyl functional group involves reducing the level of p-doping of the graphene, while the annealing process leads to an increase in defects, and consequently, to oxidation that transforms the graphene into p-doped material.

AB - Procedure of removing polymer residues by post-annealing and the effect on electronic properties of transferred monolayer graphene grown by chemical vapor deposition method are investigated using X-ray photoelectron spectroscopy and Raman spectroscopy. It is found that breaking the polymerization backbone bond induces effective removal of poly(methyl methacrylate) on the graphene surface by depolymerization, and decomposition of the carboxyl functional group involves reducing the level of p-doping of the graphene, while the annealing process leads to an increase in defects, and consequently, to oxidation that transforms the graphene into p-doped material.

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Procedure of removing polymer residues and its influences on electronic and structural characteristics of graphene

Abstract

Bibliographical note

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