Electron-beam-induced uniform elongation of multi-walled carbon nanotube

Abstract

Multi-walled carbon nanotubes (MWCNTs) respond as brittle materials at room temperature (RT) and fail upon any imposed strain for elongation. By following up our previous study on electron-beam (e-beam)-induced non-uniform elongation of MWCNTs (Khan et al. in J Phys Condens Matter 30:385302, 2018), here, it is illustrated that through moderate irradiation to a high enough intensity e-beam, dramatic uniform elongations can be attained for thin enough MWCNTs at RT, where homogeneous plastic flow of carbon atoms along the tube shells in the tube axis direction takes place with uniform inward diffusion of tube shells. The study also reports well-fitting results for quantitative kinetic relationship of the shrinkage time consequences under nanoscaled curvature, revealing predominant effect of much greater surface energy. These findings are purposeful for processing CNTs and other conventional nanotubes for their utilization in nanodevices and nanotechnology.

A scalable electron beam irradiation platform applied for allotropic carbon transformation

“…As reported in the literature, carbon structures can suffer structural modifications through the interaction with an EB source [41][42][43][44] since the morphological modifications are closely related to structural changes [45].…”

Desenvolvimento de sistema de irradiação por feixe de elétrons e sua aplicação na modificação de materiais semicondutores e não-metálicos

“…A irradiação de materiais não-metálicos, como o carbono, permite a sua transformação alotrópica e a obtenção de estruturas como o grafite [27], grafeno[28], fulereno [29] e nanotubos de carbono [30], os quais possuem um alto interesse científico e tecnológico, devido a suas excelentes propriedades elétricas, térmicas, mecânicas, ópticas e magnéticas.…”