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

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

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Title: Nanotip formation on a carbon nanotube pillar array for field emission application
Author: RAI, P; MOHAPATRA, DR; HAZRA, KS; MISRA, DS; TIWARI, SP
Abstract: 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
URI: http://dx.doi.org/10.1063/1.2996283
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4396
http://hdl.handle.net/10054/4396
Date: 2008


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