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.
Department of Chemistry, University of Durham, Durham DH1 3LE, UK.
Amit K
AK
Chakraborty
Karl S
KS
Coleman
Vinod R
VR
Dhanak