Environmental stability of ferrocene filled in purely metallic single-walled carbon nanotubes

Autor(en)

Markus Sauer, Hidetsugu Shiozawa, Paola Ayala, Georgina Ruiz-Soria, Xianjie Liu, Kazuhiro Yanagi, Hiromichi Kataura, Stefan Krause, Thomas Pichler

Abstrakt

Although the possibility of using metallocenes acting as n-type dopants for metallicity mixed and separated single-walled carbon nanotubes (SWCNT) has been proven, the question of usability for real-life applications still needs to be addressed. The most important factor for their applicability is the stability of the doping outside a vacuum environment. To clarify this issue we have conducted a long-term study on purely metallic SWCNTs after being filled with ferrocene and compared it to results after prolonged exposure to air, demonstrating a decomposition of about half of the filling material leaving a lower but stable doping state. The successful conversion to double-walled carbon nanotubes by high-temperature annealing yielding p-type doped hybrid structures is evidenced additionally. These results let us conclude that SWCNTs filled with metallocenes are an ideal n, or p-type doped starting material for applied electronics based on graphitic structures.

Organisation(en)

Elektronische Materialeigenschaften

Externe Organisation(en)

Tokyo Metropolitan University, National Institute of Advanced Industrial Science and Technology (AIST), Helmholtz-Zentrum Berlin für Materialien und Energie

Journal

Physica Status Solidi. B: Basic Research

Band

250

Seiten

2599-2604

Anzahl der Seiten

6

ISSN

0370-1972

DOI

https://doi.org/10.1002/pssb.201300124

Publikationsdatum

12-2013

Peer-reviewed

Ja

ÖFOS 2012

103018 Materialphysik

Schlagwörter

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/377a1a24-2fe5-4714-90ee-8c9b37260ed4