Work

Morphological and structural modifications of multiwalled carbon nanotubes by electron beam irradiation

Year: 2016

Type: article

Abstract: Effects of electron beam irradiation on a morphology and structure of multiwalled carbon nanotubes sample in a normal imaging regime of a scanning electron microscope (SEM) were investigated. Direct SEM observations give evidence that irradiation by electron beam in SEM eliminates morphological unevenness, in the form of round spots of white contrast, on the surface of carbon nanotubes (CNTs) and makes the tubes thinner. Electron dispersive analysis and Raman spectroscopy are used to explore the origin and nature of these spots. From this analysis we found that e-beam irradiation improves the CNTs graphitization. The synergy of thermal heating and ionization produced by the irradiation are discussed as possible mechanisms of the observed effects.

Source: Materials Research Express

DOI: 10.1088/2053-1591/3/10/105013

Authors: Emad M Elsehly, N G Chechenin, A V Makunin, H A Motaweh

Institutions: Damanhour University, Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University

Language: English

Topic: Carbon Nanotubes in Composites

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

Funder: Russian Foundation for Basic Research

Award: G6961015986