Jump to main content
Jump to site search

Issue 26, 2014
Previous Article Next Article

Microenvironment effect on the electronic potentials of individual (6,5)single-walled carbon nanotubes

Author affiliations

Abstract

As one of the most fundamental properties of carbon nanotubes, the electronic states of single-walled carbon nanotubes (SWNTs) have been investigated using different experimental approaches. In this study, we report a large shift in the redox potentials and band gaps of (6,5)SWNTs with a change in the solubilizer as determined by in situ photoluminescence (PL) spectroelectrochemical measurements in both aqueous and organic solvents. This shift is attributed to the change in the microenvironment around the SWNT surfaces due to interactions between the solubilizers, including a fluorene-based copolymer (PFO-Bpy) and carboxymethyl cellulose (CMC-Na), and the SWNTs, and this behaviour was proved by molecular mechanics simulations. A striking difference was also revealed in the states of the π-electrons in the sidewalls of SWNTs solubilized in different polymers, which indicates that altering the solubilizer enables tuning of the electronic states of SWNTs. The results presented are important for understanding the effects of the microenvironment on the redox states of individual (n,m)SWNTs.

Graphical abstract: Microenvironment effect on the electronic potentials of individual (6,5)single-walled carbon nanotubes

Back to tab navigation

Supplementary files

Publication details

The article was received on 13 Mar 2014, accepted on 10 Apr 2014 and first published on 10 Apr 2014


Article type: Paper
DOI: 10.1039/C4TC00495G
Citation: J. Mater. Chem. C, 2014,2, 5223-5228
  •   Request permissions

    Microenvironment effect on the electronic potentials of individual (6,5)single-walled carbon nanotubes

    L. Hong, F. Toshimitsu, Y. Niidome and N. Nakashima, J. Mater. Chem. C, 2014, 2, 5223
    DOI: 10.1039/C4TC00495G

Search articles by author

Spotlight

Advertisements