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Issue 25, 2019, Issue in Progress
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Influence of local strain caused by cycloaddition on the band gap control of functionalized single-walled carbon nanotubes

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Abstract

Fine control of the band gap of single-walled carbon nanotubes (SWNTs) has been achieved by the functionalization with dibromoalkanes, namely, 1,3-dibromopropane (1a), 1,4-dibromobutane (1b), 1,5-dibromopentane (1c), and 1,8-bis(bromomethyl)naphthalene (1d). Red-shifted photoluminescence (PL) peaks observed at 1215–1242 nm were assigned to the local band gaps of the chemically functionalized SWNTs 2a, 2b, 2c, and 2d, respectively. Density functional theory (DFT) and time-dependent DFT calculations for 2a–2d suggest that “local strain” induced by cycloaddition plays an important role in tuning the local band gap energies of functionalized SWNTs.

Graphical abstract: Influence of local strain caused by cycloaddition on the band gap control of functionalized single-walled carbon nanotubes

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Supplementary files

Article information


Submitted
21 Mar 2019
Accepted
30 Apr 2019
First published
08 May 2019

This article is Open Access

RSC Adv., 2019,9, 13998-14003
Article type
Paper

Influence of local strain caused by cycloaddition on the band gap control of functionalized single-walled carbon nanotubes

Y. Maeda, K. Kuroda, H. Tambo, H. Murakoshi, Y. Konno, M. Yamada, P. Zhao, X. Zhao, S. Nagase and M. Ehara, RSC Adv., 2019, 9, 13998
DOI: 10.1039/C9RA02183C

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