Spectroscopy of Filled Single-Walled Carbon Nanotubes

Abstract

Many envisaged applications, such as nanoelectronics, photovoltaics, thermoelectric power generation, light-emission devices, energy storage and biomedicine, necessitate single-walled carbon nanotube (SWCNT) samples with specific uniform electronic properties. The precise investigation of the electronic properties of filled SWCNTs on a qualitative and quantitative level is conducted by optical absorption spectroscopy, Raman spectroscopy, photoemission spectroscopy and X-ray absorption spectroscopy. This review is dedicated to the description of the spectroscopic methods for the analysis of the electronic properties of filled SWCNTs. The basic principle and main features of SWCNTs as well as signatures of doping-induced modifications of the spectra of filled SWCNTs are discussed.

Kinetics, Electronic Properties of Filled Carbon Nanotubes Investigated with Spectroscopy for Applications

“…Raman spectroscopy is a simple method that includes the irradiation of a sample with laser beam, and measuring the spectrum. The spectrum is the dependence of intensity of the scattered light on Raman shift [ 104 ]. The latter is the difference in energy between initial and scattered phonons.…”

“…The X-ray absorption spectroscopy (XAS) studies local geometric and electronic structure. The sample is irradiated with synhrotron light, adsorbs by the sample, and it originates series of absorption bands [ 104 ]. The intensity of signal is very high.…”

“…Photoemission spectroscopy is an informative method that includes the irradiation of a sample with X-ray, ultraviolet irradiation, and measuring the spectrum [ 104 ]. The spectrum is the dependence of kinetic energy of photoelectrons on binding energy.…”

“…Optical absorption spectroscopy is a simple method that includes the irradiation of SWCNTs with the light, and measuring the spectrum [ 104 ]. The spectrum is the dependence of the absorbance (or transmittance) on the wavelength.…”

Advanced Carbon Nanostructures: Synthesis, Properties, and Applications

“…Investigating the chemistry of carbon allotropes has led to many new, interesting discoveries in all the above groups [ 2 ]. The physics of carbon allotropes is an interesting topic which has attracted the attention of researchers [ 3 ]. The scope of our Special Issue, “Advanced Carbon Nanostructures: Synthesis, Properties, and Applications”, is advanced carbon nanostructures, such as carbon nanotubes, graphene, graphene nanoribbons, and 2D van der Walls heterostructures.…”