Modifying Electrical and Magnetic Properties of Single-Walled Carbon Nanotubes by Decorating with Iron Oxide Nanoparticles

Huayang Li; Zhengran He; Zhongliang Ouyang; Soubantika Palchoudhury; Conrad W Ingram; Issifu I Harruna; Dawen Li

doi:10.1166/jnn.2020.17215

Modifying Electrical and Magnetic Properties of Single-Walled Carbon Nanotubes by Decorating with Iron Oxide Nanoparticles

J Nanosci Nanotechnol. 2020 Apr 1;20(4):2611-2616. doi: 10.1166/jnn.2020.17215.

Authors

Huayang Li¹, Zhengran He², Zhongliang Ouyang², Soubantika Palchoudhury³, Conrad W Ingram¹, Issifu I Harruna¹, Dawen Li²

Affiliations

¹ Department of Chemistry, Department of Biology, Department of Physics, and Center for Functional Nanoscale Materials, Clark Atlanta University, Atlanta, GA 30314, USA.
² Department of Electrical and Computer Engineering, Center for Materials for Information Technology, The University of Alabama, Tuscaloosa, AL 35487, USA.
³ Department of Civil and Chemical Engineering, University of Tennessee at Chattanooga, Chattanooga, TN 37403, USA.

PMID: 31492284
DOI: 10.1166/jnn.2020.17215

Abstract

In this work, we report a facile approach to modify the magnetic and electrical property of Hipco single-walled carbon nanotubes (SWCNTs) by attaching iron oxide nanoparticles (FeNPs). The Raman spectra of FeNP-SWCNTs revealed an apparent intensity reduction of metallic peaks in Radial breathing mode (RBM) region, which indicates the ratio change between the metallic and semiconducting component of SWCNTs after modification. Distinctive magnetic and electric resistance properties of FeNP-SWCNTs were found to be associated with the different shapes of FeNPs. The specific FeNP examples as showcased in this work can be applied to tune the electric and magnetic properties of other nanostructured materials in general and shed light on various electronic and magnetic applications.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.