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

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.
Authors:
; ; ; ;  [1] ;  [1] ;  [2] ; ; ;  [3]
  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. (China)
  3. School of Science, Minzu University of China, Beijing 100081 (China)
Publication Date:
OSTI Identifier:
22275816
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 2; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; CURRENTS; ELECTRON BEAMS; FIELD EMISSION; GRAPHENE