Rare-earth metal halogenide encapsulation-induced modifications in Raman spectra of single-walled carbon nanotubes

Autor(en)

M. V. Kharlamova

Abstrakt

In the present work, a detailed Raman spectroscopy investigation on the single-walled carbon nanotubes (SWCNTs) filled with praseodymium chloride, terbium chloride and thulium chloride was performed. The salts were incorporated inside the SWCNTs by a capillary filling method using melts, and the high-resolution transmission electron microscopy data proved the high filling degree of the nanotube channels. A thorough analysis of the radial breathing mode and G-band of the Raman spectra of the pristine and filled SWCNTs showed that the encapsulated salts cause acceptor doping of the host nanotubes, and the doping efficiency depends on the compound. The incorporated thulium chloride has the strongest doping effect on the SWCNTs, whereas praseodymium chloride has the weakest effect. It was found that the encapsulated salts modify more significantly the electronic structure of metallic nanotubes than semiconducting SWCNTs.

Organisation(en)

Elektronische Materialeigenschaften

Externe Organisation(en)

Lomonosov Moscow State University (MSU)

Journal

Applied Physics A: materials science & processing

Band

118

Seiten

27-35

Anzahl der Seiten

9

ISSN

0947-8396

DOI

https://doi.org/10.1007/s00339-014-8880-7

Publikationsdatum

01-2015

Peer-reviewed

Ja

ÖFOS 2012

103018 Materialphysik

Schlagwörter

ASJC Scopus Sachgebiete

Allgemeine Chemie, Allgemeine Materialwissenschaften

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/dd842082-3533-4e73-b978-56b604426a30