Abstract
Low field electron emission from nanocarbon materials obtained by chemical vapour deposition (CVD) was studied to evaluate both the emission mechanism and material's applicability for cold cathodes. Statistical behaviour of nanocarbon cathodes shows narrow distribution of emission sites parameters and their significant contradiction to the usual Fowler - Nordheim theory. An energy band diagram of emission sites including two potential barriers was proposed on the basis of experimental comparative analysis of the field emission characteristics, structural and other properties of the CVD nanocarbon films. This two barrier model explains low field emission and other phenomena related to nanocarbon materials. Experimental verification of nanocarbon cathodes was demonstrated in prototypes of cathodoluminescent lamps.
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