Quantum Optics Devices on a Chip

3Carbon Nanotubes with Quantum Defects

Drisya G. Chandran, Loganathan Muruganandam and Rima Biswas^*

Process Simulation Research Group, School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, India

Abstract

An exceptionally promising field of nanotechnology is molecular electronics, which uses carbon nanotubes (CNTs) as a leading choice due to their quasi-one-dimensional nanostructure with extraordinary properties and extremely susceptible nature to small changes in its structure and environment. Small structural alterations have a big impact on a material’s characteristics. A fascinating method to modify the fundamental features of the carbon network and develop brand-new, potentially useful nanodevices is to be achieved via the introduction of defects onto the surface of the nanotube. The insertion of pentagons, heptagons, vacancies, and sp³ defects produces significant alterations to the nanosystem’s electrical properties, which is interesting to observe. This account aims to explore how numerous defects affect the electronic characteristics of carbon nanotubes and offer novel applications in the field of nanoelectronics.

Keywords: Carbon nanotube, photophysics, near-infrared fluorescence, quantum defect, nanodevice, nanotechnology

3.1 Introduction

The sp² family of carbon allotropes consists of four separate members with varying dimensions like fullerenes, carbon nanotubes (CNTs), graphene, and graphite [1]. Each carbon atom in each of the ...