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

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 d...

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Veröffentlicht in:Applied physics letters 2015-01, Vol.106 (2)
Hauptverfasser: Chen, Wei, Wang, Fei, Qin, Shiqiao, Fang, Jingyue, Wang, Chaocheng, Wang, Guang, Wang, Li, Zhang, Xue-Ao
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Sprache:eng
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Zusammenfassung: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.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4906202