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P‐154: Optimized Field Emission of Multiwalled Carbon Nantoubes
Author(s) -
Lee Kyongsoo,
Ju ByeongKwon
Publication year - 2008
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3069522
Subject(s) - field electron emission , carbon nanotube , materials science , cathode , common emitter , indium , current density , layer (electronics) , optoelectronics , carbon fibers , nanotechnology , composite material , electrical engineering , electron , physics , engineering , quantum mechanics , composite number
Abstract To investigate the emission properties of carbon nanotubes (CNTs), an indium based cathode was formulated with various surface treatments. In this case, we can demonstrate the field emission properties of unalloyed CNTs as compared with the conventional screen‐printed method. We have demonstrated that the sprayed carbon nanotubes (CNTs) on the indium layer were vertically aligned by surface treatment methods such as taping and applying acritical bias field. From these emitter surfaces, the CNT can be turned on with a field as low as 1.4V/μm. An emission current density of 5mA/cm 2 at 1.8V/μm can be attained.