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Spectroelectrochemistry of intercalated single‐walled carbon nanotubes (Phys. Status Solidi B 8/2016)
Author(s) -
Eliseev A. A.,
Verbitskiy N. I.,
Verbitskiy I. I.,
Lukashin A. V.,
Kumskov A. S.,
Kiselev N. A.
Publication year - 2016
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201670551
Subject(s) - carbon nanotube , materials science , raman spectroscopy , electrolyte , doping , composite number , electrochemistry , acceptor , nanotechnology , electron acceptor , crystal (programming language) , chemistry , composite material , electrode , condensed matter physics , optoelectronics , photochemistry , physics , optics , computer science , programming language
The properties of single‐walled carbon nanotubes (SWNTs) depend strongly on the tube's diameter and atomic structure, and can be successfully influenced by chemical modification of their internal channels. Thus, the filling of SWNTs with electron donor or acceptor compounds can induce an increase or decrease of electron density on the nanotube walls and, therefore, allows one to control the electronic properties of the system. Despite a significant amount of reports on the synthesis and on theoretical and experimental studies of 1D‐crystal©SWNT composites, direct information on their electronic structure is still lacking in many cases. Eliseev et al. (pp. 1585–1589 ) have focused on the elaboration of an experimental method for dopinglevel determination of SWNT‐based material, and the CuCl©SWNT composite material was chosen as a test system. The proposed method of spectroelectrochemical resonant Raman scattering under electrochemical charging in weakly interacting organic electrolyte enables the unambiguous detection of charge transfer and doping level in sp 2 ‐carbon materials by Kohn anomaly shift. The data obtained by this method is consistent with other techniques and provides additional valuable information on possible redox transformations of composite materials. The presented methodology can be used as a reference protocol for Fermi level shift determination in doped SWNTs.