Graphene electron cannon: High-current edge emission from aligned graphene sheets

Journal Article · Mon Jan 13 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4861611· OSTI ID:22275816

Liu, Jianlong; Li, Nannan; Guo, Jing; Fang, Yong; Deng, Jiang ^[1]; Zeng, Baoqing ^[1]; Wang, Wenzhong; Li, Jiangnan; Hao, Chenchun ^[2]

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1. National Key Laboratory of Science and Technology on Vacuum Electronics, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054 (China)
2. School of Science, Minzu University of China, Beijing 100081 (China)

High-current field emitters are made by graphene paper consist of aligned graphene sheets. Field emission luminance pattern shows that their electron beams can be controlled by rolling the graphene paper from sheet to cylinder. These specific electron beams would be useful to vacuum devices and electron beam lithograph. To get high-current emission, the graphene paper is rolled to array and form graphene cannon. Due to aligned emission array, graphene cannon have high emission current. Besides high emission current, the graphene cannon is also tolerable with excellent emission stability. With good field emission properties, these aligned graphene emitters bring application insight.

• OSTI ID: 22275816
• Journal Information: Applied Physics Letters, Vol. 104, Issue 2; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
CURRENTS
ELECTRON BEAMS
FIELD EMISSION
GRAPHENE