Local charge transport properties of hydrazine reduced monolayer graphene oxide sheets prepared under pressure condition
Abstract
Charge transport properties of chemically reduced graphene oxide (RGO) sheets prepared by treatment with hydrazine were examined using conductive atomic force microscopy. The current-voltage (I-V) characteristics of monolayer RGO sheets prepared under atmospheric pressure followed an exponentially increase due to 2D variable-range hopping conduction through small graphene domains in an RGO sheet containing defect regions of residual sp{sup 3} carbon clusters bonded to oxygen groups, whereas RGO sheets prepared in a closed container under moderate pressure showed linear I-V characteristics with a conductivity of 267.2−537.5 S/m. It was found that the chemical reduction under pressure results in larger graphene domains (sp{sup 2} networks) in the RGO sheets when compared to that prepared under atmospheric pressure, indicating that the present reduction of GO sheets under the pressure is one of the effective methods to make well-reduced GO sheets.
- Authors:
-
- Nano-Science Center and Department of Chemistry, University of Copenhagen, Universitetparken 5, 2100 Københaven Ø (Denmark)
- Publication Date:
- OSTI Identifier:
- 22311037
- Resource Type:
- Journal Article
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 105; Journal Issue: 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ATMOSPHERIC PRESSURE; ATOMIC FORCE MICROSCOPY; CHARGE TRANSPORT; CURRENTS; ELECTRIC CONDUCTIVITY; ELECTRIC POTENTIAL; GRAPHENE; HYDRAZINE; OXIDES; OXYGEN; SHEETS
Citation Formats
Ryuzaki, Sou, Meyer, Jakob A. S., Petersen, Søren, Nørgaard, Kasper, Hassenkam, Tue, and Laursen, Bo W. Local charge transport properties of hydrazine reduced monolayer graphene oxide sheets prepared under pressure condition. United States: N. p., 2014.
Web. doi:10.1063/1.4895072.
Ryuzaki, Sou, Meyer, Jakob A. S., Petersen, Søren, Nørgaard, Kasper, Hassenkam, Tue, & Laursen, Bo W. Local charge transport properties of hydrazine reduced monolayer graphene oxide sheets prepared under pressure condition. United States. https://doi.org/10.1063/1.4895072
Ryuzaki, Sou, Meyer, Jakob A. S., Petersen, Søren, Nørgaard, Kasper, Hassenkam, Tue, and Laursen, Bo W. 2014.
"Local charge transport properties of hydrazine reduced monolayer graphene oxide sheets prepared under pressure condition". United States. https://doi.org/10.1063/1.4895072.
@article{osti_22311037,
title = {Local charge transport properties of hydrazine reduced monolayer graphene oxide sheets prepared under pressure condition},
author = {Ryuzaki, Sou and Meyer, Jakob A. S. and Petersen, Søren and Nørgaard, Kasper and Hassenkam, Tue and Laursen, Bo W.},
abstractNote = {Charge transport properties of chemically reduced graphene oxide (RGO) sheets prepared by treatment with hydrazine were examined using conductive atomic force microscopy. The current-voltage (I-V) characteristics of monolayer RGO sheets prepared under atmospheric pressure followed an exponentially increase due to 2D variable-range hopping conduction through small graphene domains in an RGO sheet containing defect regions of residual sp{sup 3} carbon clusters bonded to oxygen groups, whereas RGO sheets prepared in a closed container under moderate pressure showed linear I-V characteristics with a conductivity of 267.2−537.5 S/m. It was found that the chemical reduction under pressure results in larger graphene domains (sp{sup 2} networks) in the RGO sheets when compared to that prepared under atmospheric pressure, indicating that the present reduction of GO sheets under the pressure is one of the effective methods to make well-reduced GO sheets.},
doi = {10.1063/1.4895072},
url = {https://www.osti.gov/biblio/22311037},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 9,
volume = 105,
place = {United States},
year = {Mon Sep 01 00:00:00 EDT 2014},
month = {Mon Sep 01 00:00:00 EDT 2014}
}