Improved field emission properties of CuO nanowire arrays by coating of graphene oxide layers - Details

author：

Yu, W. (Yu, W..) ^[1] | Hu, H. (Hu, H..) ^[2] | Zhang, D. (Zhang, D..) ^[3] | Huang, H. (Huang, H..) ^[4] | Guo, T. (Guo, T..) ^[5]

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Abstract：

Graphene　oxide　(GO)-coated　copper　oxide　(CuO)　nanowire　arrays　were　prepared　as　field　emission　cathodes　using　a　solution　process,　in　which　CuO　nanowires　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　investigations　of　GO/CuO　cathode　showed　a　low　turn-on　field　of　3.7　V/μm　and　a　high　enhancement　factor　(2080)　compared　to　those　of　bare　CuO　nanowires.　Furthermore,　the　emission　current　was　stable　without　any　attenuation　during　the　testing.　The　GO/CuO　composite　nanostructures　are　promising　field　emission　cathodes　in　field　emission　application.　©　2015　American　Vacuum　Society.

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Community：

[ 1 ] [Yu, W.]College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350002, China
[ 2 ] [Hu, H.]College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350002, China
[ 3 ] [Zhang, D.]College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350002, China
[ 4 ] [Huang, H.]College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350002, China
[ 5 ] [Guo, T.]College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350002, China

Reprint 's Address：

[Hu, H.]College of Physics and Information Engineering, Fuzhou UniversityChina

Email：

huhl@fzu.edu.cn

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Source ：

Journal of Vacuum Science and Technology B: Nanotechnology and Microelectronics

ISSN： 2166-2746

Year： 2016

Issue： 2

Volume： 34

1 . 5 0 0

JCR@2023

ESI HC Threshold：324

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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