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자연과학대학
물리학전공
Journal papers
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Band gap sensitivity of bromine adsorption at carbon nanotubes
Title
Band gap sensitivity of bromine adsorption at carbon nanotubes
Authors
Park N.
;
Miyamoto Y.
;
Lee K.
;
Ih Choi W.
;
Ihm J.
;
Yu J.
;
Han S.
Ewha Authors
한승우
SCOPUS Author ID
한승우
Issue Date
2005
Journal Title
Chemical Physics Letters
ISSN
0009-2614
Citation
Chemical Physics Letters vol. 403, no. 41277, pp. 135 - 139
Indexed
SCI; SCIE; SCOPUS
Document Type
Article
Abstract
We report results of our first-principles investigation on the energetics and electronic structures of bromine-adsorbed carbon nanotubes. While the bromine molecule binds preferentially to the outer wall of metallic nanotubes, the binding energy of adsorbed atomic bromines are found to depend on the radius as well as the energy gap. A recent experiment on the nanotube separation using bromines is discussed based on our computational data. The formation of strong C-Br chemical bonds at the zigzag edge of graphite demonstrates a close relationship between the density of states at the Fermi level and the binding strength. © 2005 Elsevier B.V. All rights reserved.
DOI
10.1016/j.cplett.2005.01.005
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