Observation of complete space-charge-limited transport in metal-oxide-graphene heterostructure

Journal Article · Mon Jan 12 00:00:00 EST 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4906202· OSTI ID:22399134

Chen, Wei; Wang, Fei; Fang, Jingyue; Wang, Guang ^[1]; Qin, Shiqiao; Zhang, Xue-Ao ^[1]; Wang, Chaocheng ^[2]; Wang, Li ^[1]

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1. College of Science, National University of Defense Technology, Changsha 410073 (China)
2. Department of Physics, Nanchang University, Nanchang 330031 (China)

The metal-oxide-graphene heterostructures have abundant physical connotations. As one of the most important physical properties, the electric transport property of the gold-chromium oxide-graphene heterostructure has been studied. The experimental measurement shows that the conductive mechanism is dominated by the space-charge-limited transport, a kind of bulk transport of an insulator with charge traps. Combining the theoretical analysis, some key parameters such as the carrier mobility and trap energy also are obtained. The study of the characteristics of the metal-oxide-graphene heterostructures is helpful to investigate the graphene-based electronic and photoelectric devices.

• OSTI ID: 22399134
• Journal Information: Applied Physics Letters, Vol. 106, Issue 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CARRIER MOBILITY
CHARGE TRANSPORT
CHROMIUM OXIDES
ELECTRIC CONDUCTIVITY
GOLD
GRAPHENE
HETEROJUNCTIONS
SPACE CHARGE
TRAPS