Doping of single-walled carbon nanotubes controlled via chemical transformation of encapsulated nickelocene

Author(s)

Marianna V. Kharlamova, Markus Sauer, Takeshi Saito, Yuta Sato, Kazu Suenaga, Thomas Pichler, Hidetsugu Shiozawa

Abstract

Controlled doping of carbon nanotubes is elemental for

their electronic applications. Here we report an approach to tune the

polarity and degree of doping of single-walled carbon nanotubes via

filling with nickelocene followed by encapsulated reactions. Using

Raman, photoemission spectroscopy and transmission electron microscopy,

we show that nickelocene molecules transform into nickel carbides,

nickel and inner carbon nanotubes with reaction temperatures as low as

250 °C. The doping efficiency is determined for each chemical component.

Synchronous charge transfer among the molecular components allows

bipolar doping of the carbon nanotubes to be achieved in a broad range

of ±0.0012 e⁻ per carbon.

Organisation(s)

Electronic Properties of Materials

External organisation(s)

National Institute of Advanced Industrial Science and Technology (AIST)

Journal

Nanoscale

Volume

Pages

1383-1391

No. of pages

ISSN

2040-3364

DOI

https://doi.org/10.1039/C4NR05586A

Publication date

01-2015

Peer reviewed

Yes

Austrian Fields of Science 2012

205017 Materials engineering

ASJC Scopus subject areas

General Materials Science

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