학술논문
Field emission characteristics of graphene oxide coated CuO cathode
Document Type
Conference
Author
Source
2015 28th International Vacuum Nanoelectronics Conference (IVNC) Vacuum Nanoelectronics Conference (IVNC), 2015 28th International. :128-129 Jul, 2015
Subject
Language
ISSN
2164-2370
2380-6311
2380-6311
Abstract
Graphene oxide (GO) coated CuO nanoswire arrays have been prepared on Cu substrate as field emission cathodes. CuO were grown on Cu substrates by a low-temperature hydrothermal process and the covering of GO sheets was carried out using an electrostatic self-assembly method. The field emission (FE) investigation of GO/CuO cathode showed a low turn-on field (4.5 V/ µ m) and high enhancement factor (1190) compared to those of pure CuO. The GO/CuO composite nanostructures are promising field emission cathodes in FE application.