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Effect of ion impinging on the microstructure and field emission of carbon nanotubes

โœ Scribed by Jihua Zhang; Xi Wang; Weidong Yu; Tao Feng; Fumin Zhang; Zhihong Zheng; Qiong Li; Xianghuai Liu

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
892 KB
Volume
127
Category
Article
ISSN
0038-1098

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โœฆ Synopsis

Effects of ion impinging on the microstructure and field electron emission properties of screen-printed carbon nanotube films were investigated. We observed that the plasma treatment modified the microstructure of CNTs along with the remarkable increase of emission site density. With the prolongation of ion impinging time, the emission current falls down first, and then rises up to higher than that of the untreated films. It is proposed that the change of emission characteristics is due to the different emission mechanisms. After the treatment, electrons are emitted predominantly from the nano-nodes on the tube wall instead from the nanotube tips.

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