Published April 6, 2015 | Version v1
Journal article Metadata-only

Verification of electron doping in single-layer graphene due to H2 exposure with thermoelectric power

Creators

  • 1. Department of Physics and Astronomy, Seoul National University, Seoul 151-747 (Korea, Republic of)
  • 2. Department of Nano Science and Technology, Seoul National University, Seoul 151-747 (Korea, Republic of)
  • 3. Department of Chemistry Education, Seoul National University, Seoul 151-742 (Korea, Republic of)
  • 4. Department of Physics, Incheon National University, Incheon 406-772 (Korea, Republic of)
  • 5. Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE-412 96 Göteborg (Sweden)

Description

We report the electron doping of single-layer graphene (SLG) grown by chemical vapor deposition (CVD) by means of dissociative hydrogen adsorption. The transfer characteristic showed n-type doping behavior similar to that of mechanically exfoliated graphene. Furthermore, we studied the thermoelectric power (TEP) of CVD-grown SLG before and after exposure to high-pressure H2 molecules. From the TEP results, which indicate the intrinsic electrical properties, we observed that the CVD-grown SLG is n-type doped without degradation of the quality after hydrogen adsorption. Finally, the electron doping was also verified by Raman spectroscopy

Additional details

Identifiers

DOI
10.1063/1.4917470;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
106
Journal Issue
14
Journal Page Range
p. 142110-142110.4
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46104550
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ADSORPTION; CHEMICAL VAPOR DEPOSITION; DOPED MATERIALS; ELECTRICAL PROPERTIES; ELECTRONS; GRAPHENE; HYDROGEN; MOLECULES; N-TYPE CONDUCTORS; RAMAN SPECTROSCOPY; THERMOELECTRIC MATERIALS; THERMOELECTRIC PROPERTIES
Descriptors DEC
CARBON; CHEMICAL COATING; DEPOSITION; ELECTRICAL PROPERTIES; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; LASER SPECTROSCOPY; LEPTONS; MATERIALS; NONMETALS; PHYSICAL PROPERTIES; SEMICONDUCTOR MATERIALS; SORPTION; SPECTROSCOPY; SURFACE COATING

Optional Information

Notes
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