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The Effect of Thermal Accumulation to the Field Emission Properties of the Carbon Nanotubes
Abstract:
In this paper, we report a recent experimental observation of the effect of thermal accumulation to the field emission properties of the carbon nanotubes. The carbon nanotubes are grown on Ni by CVD. We compare the field emission characteristics of carbon nanotubes cathodes under DC and pulse mode. Our research shows that the higher current and higher current density could be acquired by suppressing the thermal accumulation. The Fowler-Nordheim plot shows a good linear fit, indicating that the emission current of carbon nanotubes follows Fowler-Nordheim behavior.
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265-268
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May 2015
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© 2015 Trans Tech Publications Ltd. All Rights Reserved
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