Record number :
1001002
Title of article :
Calculation of the emission performance of the carbon nanotube array
Author/Authors :
Zhang Yuning، نويسنده , , Lei Wei، نويسنده , , Zhang Xiaobing، نويسنده , , Wang Baoping، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Pages :
7
From page :
400
To page :
406
Abstract :
Because of the excellent field emission performances, the carbon nanotube array has already been used as the cold electron source in the field emission display, the vacuum microwave tube, and the electron microscopy, etc. It is necessary to estimate the emission performance of the carbon nanotube array in the design of these devices. The emission current density of a single carbon nanotube can be estimated with the Fowler–Nordheim formula approximately. Thus, the emission performance of the whole array is obtained by the sum of the current emitted from all carbon nanotubes in the array. However, this calculation is very complex and time consuming due to the large number of carbon nanotubes in the array. This paper proposes a simple model to predict the emission performance of the whole CNTarray. The total emission current can be deduced easily with this model if we know the geometrical parameters of the CNT array. A few experiments have been performed to verify this model. With this model, the influences of geometric dimensions of the CNT array on the emission performance are also discussed
Keywords :
Emission performance , CNT array , Geometrical dimension
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science
Serial Year :
2005
Link To Document :
بازگشت