The electronic fine structure of 4-nitrophenyl functionalized single-walled carbon nanotubes.
Controlling the electronic structure of carbon nanotubes (CNTs) is of great importance to various CNT based applications. Herein the electronic fine structure of single-walled carbon nanotube films modified with 4-nitrophenyl groups, produced following reaction with 4-nitrobenzenediazonium tetrafluoroborate, was investigated for the first time. Various techniques such as x-ray and ultra-violet photoelectron spectroscopy, and near edge x-ray absorption fine structure studies were used to explore the electronic structure, and the results were compared with the measured electrical resistances. A reduction in number of the pi electronic states in the valence band consistent with the increased resistance of the functionalized nanotube films was observed.
Chakraborty
Amit K
AK
Department of Chemistry, University of Durham, Durham DH1 3LE, UK.
Coleman
Karl S
KS
Dhanak
Vinod R
VR