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Synthesis and field emission properties of carbon nanotube films modified with amorphous carbon nanoparticles by a simple electrodeposition method

Juan Yang ,  Xing-Bin Yan ,  Jiang-Tao Chen ,  Dong-Fei Sun ,  Qun-Ji Xue

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Citation:  Juan Yang, Xing-Bin Yan, Jiang-Tao Chen, Dong-Fei Sun, Qun-Ji Xue. Synthesis and field emission properties of carbon nanotube films modified with amorphous carbon nanoparticles by a simple electrodeposition method[J]. Chinese Chemical Letters, 2014, 25(2): 375-379. shu

Synthesis and field emission properties of carbon nanotube films modified with amorphous carbon nanoparticles by a simple electrodeposition method

    • 通讯作者: Xing-Bin Yan,
  • 基金项目:

    the National Nature Science Foundation of China (No. 51002161). (No. 51002161)

摘要: Amorphous carbon nanoparticles (a-CNPs) on a multi-walled carbon nanotube (MWCNT) film, deposited on a silicon substrate, were synthesized using an electrodeposition combination from a methanol suspension of polydiallyldimethylammonium chloride-modified MWCNTs. A low-voltage electrophoretic deposition of the MWCNTs and a high-voltage electrochemical deposition of the a-CNPs were carried out to yield homogenously attached a-CNPs on the surfaces of the MWCNTs, and form a composite film with good adhesion to the substrate. This scalable technology can produce a large area of a-CNP/MWCNT film. And the field emission investigations show that the a-CNP/MWCNT film has turnon electric field of 3.17 V μm-1 (at 10 μA cm-2) and threshold field of 4.62 V μm-1 (at 1 mA cm-2), which are lower than those of the MWCNT film. The a-CNP/MWCNT film can be deposited simply with large areas and may be a promising cathode material applied in field emission displays.

English

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  • 收稿日期:  2013-09-07
  • 网络出版日期:  2013-10-14
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