LIU Qiao-ping, LI Wei-xia, YANG Yan-ning etc. Field Emission Characteristics of CNTs Mixed Nano-diamond Deposited on Titanium Substrate[J]. Chinese Journal of Luminescence, 2015,36(9): 1013-1017
LIU Qiao-ping, LI Wei-xia, YANG Yan-ning etc. Field Emission Characteristics of CNTs Mixed Nano-diamond Deposited on Titanium Substrate[J]. Chinese Journal of Luminescence, 2015,36(9): 1013-1017 DOI: 10.3788/fgxb20153609.1013.
Field Emission Characteristics of CNTs Mixed Nano-diamond Deposited on Titanium Substrate
On the basis of field emission characteristics of nano-diamond
the field emission characteristics of diamond doped CNTs were studied. The composite coating of diamond and CNTs was formed using electrophoretic deposition
and the cathode samples were fabricated after heat treatment. The microstructure
field emission and luminescence performance of the samples were characterized. Compared with the undoped diamond cathode
the turn-on field of the composite coating cathode decreases obviously
the field emission current increases. The fluorescent powder on the anode surface can luminescent under lower electric field
but the luminescence is nonuniform and the phenomena of edge luminescence occurs. The improvement of the field emission characteristics is due the enhancement of the electron transportation capacity of the composite coating and the increase of the effective emitter number. Finally
the reasons of edge luminescence were explained.
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references
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