Volume 15, Issue 4 ((Iranian Journal of Physics Research,Winter 2016)                   IJPR 2016, 15(4): 429-433 | Back to browse issues page


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Keshtmand R, Khanlary M, Keshtmand Z. A survey of conductivity of nanotubes indirectly doped with nitrogen using equations Kramerz-Kronig. IJPR. 2016; 15 (4) :429-433
URL: http://ijpr.iut.ac.ir/article-1-1971-en.html
Department of Physics, Faculty of Science, Imam Khomeini International University, Qazvin, Iran , zkeshtmand2001@yahoo.com
Abstract:   (3514 Views)

Doping of carbon nanotubes with nitrogen should provide more control over the nanocarbon electronic structure. In addition to the chemical and arc-discharge alternative methods used nowadays, we suggest ion irradiationas an alternative way to introduce N impurities into nanotubes. The impinging ions can directly occupy the sp2 positions in the nanotube atomic network. As an alternative way N nitrogen atoms are introduced due to the same atomic radius. In this work we studied the defects caused by exposure to N2 with various energies with the Raman spectroscopy. Kramers–Kronig analysisis determined the optical conductivityAWT IMAGEof multiwall carbon nanotudes. Electrical measurements showed that conductivity of samples increases with enhancement of irradiation of MWCNTs, clearly due to creation of more defects and N-C and irradiation-mediated doping of nanotubes is a promising way to control the nanotubes electronic structure.

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Type of Study: Research | Subject: General

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