skip to main content

Title: Fabrication of carbon nanotube emitters on the graphite rod and their high field emission performance

Carbon nanotube (CNT) emitters with small emission area were fabricated on graphite rods using CNT films. By introducing the edge polishing process, the field emission performance of the CNT emitter was much improved, which showed a very high emission current of 6.34 mA (1.6 A/cm{sup 2}) under an applied electric field of 5.3 V/μm. It also indicates good long-term emission stability, which reveals no degradation in the emission current for 20 h. The emission patterns demonstrate uniform and well-focused electron beam spots. The enhanced field emission performance is mainly attributed to the suppressed edge emission after the edge polishing process.
Authors:
; ;  [1] ;  [2] ; ;  [3] ;  [4] ;  [1] ;  [5]
  1. School of Electrical Engineering, Korea University, Seoul 136-713 (Korea, Republic of)
  2. Department of Micro/Nano Systems, Korea University, Seoul 136-713 (Korea, Republic of)
  3. Korea Electrotechnology Research Institute, Ansan 127-56 (Korea, Republic of)
  4. Department of Quantum Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603 (Japan)
  5. (Korea, Republic of)
Publication Date:
OSTI Identifier:
22280564
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; CARBON NANOTUBES; ELECTRIC CURRENTS; ELECTRIC FIELDS; ELECTRON BEAMS; FABRICATION; FIELD EMISSION; GRAPHITE; PERFORMANCE; PHASE STABILITY; POLISHING; RODS; THIN FILMS