Deposition of Magnetic Carbon Nano Tubes with Chromium Seed

Ana P Mousinho,Nelson Ordonez,Ronaldo D Mansano

doi:10.4236/wjnse.2020.102003

Abstract

In this work, was obtained metallic decorated, single wall Carbon Nanotubes (SWCNTs) using High Density Chemical Vapor Deposition (HDPCVD) system on chromium thin films on a silicon wafers substrate. The characteristics of this deposition method are capacity of the segregation of metallic nanoparticlesas seed for the SWCNT growing. Use of magnetic particle decorated carbon nanotubes increases the applications in magnetic devices, magnetic memory, and magnetic oriented drug delivery. The CNTs’ spectra show a unique emission band, but due to the presence of the chromium, the spectra obtained in this work showed many bands that are related to the CNTs with different diameters. The CNTs obtained by the HDPCVD system are highly aligned and showed metallic features. Results of this work proved the possibility of obtaining the controlled deposition of aligned single-walled CNTs forest films decorated with chromium and suggested future studies in magnetic devices applications.

Highlights

Carbon nanotubes (CNTs) were discovered in 1991 [1]
In this work, obtained high-aligned SWCNT forest decorated with chromium, and a high-density plasma chemical vapor deposition technique for deposition processes
Note the presence of these characteristics vibrational modes in CNTs forest films decorated with chromium and some new vibrational modes related to carbon nanotubes with different diameters when use the HDPCVD system

Summary

Introduction

Carbon nanotubes (CNTs) were discovered in 1991 [1]. CNTs are a new form of carbon that shows an equivalent form a bi-dimensional grapheme sheet wrapped as a tube. Single-walled carbon nanotubes, made of cylindrically rolled grapheme sheets, have attracted a lot of attention due to their interesting and potentially useful electrical and mechanical properties. Regarding their mechanical properties, they have been hailed as the flexible springs of nature. Single-walled carbon nanotubes can be conductive and semiconducting.

Methods

Results

Conclusion