Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Control of p-doping on single-walled carbon nanotubes with nitronium hexafluoroantimonate in liquid phase

Authors
Kim, Ki KangBae, Jung JunKim, Soo MinPark, Hyeon KiAn, Kay HyeokLee, Young Hee
Issue Date
Dec-2009
Publisher
John Wiley & Sons Ltd.
Citation
Physica Status Solidi (B): basic solid state physics, v.246, no.11-12, pp 2419 - 2422
Pages
4
Journal Title
Physica Status Solidi (B): basic solid state physics
Volume
246
Number
11-12
Start Page
2419
End Page
2422
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/159049
DOI
10.1002/pssb.200982318
ISSN
0370-1972
1521-3951
Abstract
We report that nitronium hexafluoroantimonate (NHFA) can be used as a strong p-type dopant on single-walled carbon nanotubes (SWCNTs). The diameter range of SWCNTs in this work ranged from 1.2 to 1.8 nm. The NHFA was dissolved in a mixed solution of tetramethylsilane/1,2-dichloroethane (1:1 by weight) with SWCNTs. The treated samples in liquid phase were characterized by UV-VIS-NIR absorption and Raman spectroscopies. We found that with increasing the NHFA concentration, the van Hove singularity-related transitions (ES11, ES22, and EM11) in the optical absorption spectra disappeared gradually and a new transition peak was clearly observed near 1.33 eV. G-band in the Raman spectra was upshifted to 1618 cm-1 from 1587 cm-1 of the pristine peak due to the phonon stiffening, an evidence of p-type doping. The sheet resistance of the SWCNT film was reduced up to 90%. After thermal annealing, the Raman spectra were recovered, similar to those of the pristine sample without any damage. ? 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Files in This Item
There are no files associated with this item.
Appears in
Collections
이과대학 > 화학과 > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher Kim, Soo Min photo

Kim, Soo Min
이과대학 (화학과)
Read more

Altmetrics

Total Views & Downloads

BROWSE