Nanotip formation on a carbon nanotube pillar array for field emission application

被引：26

作者：

Rai, Padmnabh ^{[1
]}

Mohapatra, Dipti R. ^{[1
]}

Hazra, K. S. ^{[1
]}

Misra, D. S. ^{[1
]}

Tiwari, S. P. ^{[2
]}

机构：

[1] Indian Inst Technol, Dept Phys, Bombay 400076, Maharashtra, India

[2] Indian Inst Technol, Dept Elect Engn, Bombay 400076, Maharashtra, India

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 13期

关键词：

D O I：

10.1063/1.2996283

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The field emission of a carbon nanotube (CNT) pillar array has been improved significantly by plasma treatment in a mixture of hydrogen and nitrogen gases. The plasma treatment for 30 s on a pillar array decreased the turn- on electric field from 0.48 to 0.37 V/mu m and increased the field enhancement factor from 6200 to 6900. The emission current density increased by a factor of approximate to 40. We report in this letter the technique of generating nanotips on CNT pillars with an enormous potential to become a tool for the control and manipulation of CNTs and nanostructures. (C) 2008 American Institute of Physics.

引用

页数：3

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