Fabrication of free-standing pure carbon-based composite material with the combination of sp(2)-sp(3) hybridizations

Autor(en)

M. Varga, V. Vretenar, M. Kotlar, V. Skakalova, A. Kromka

Abstrakt

Composite structures have been in a center of interest for many decades. Carbon–carbon composites combine different carbon-based allotropes. Combining different carbon structures each with its unique property results in a new composite material with designed properties. In this contribution we present a technological procedure for preparation of a new flexible material consisting of single-wall carbon nanotubes (SWNTs) and nanocrystalline diamond (NCD). The fabrication process starts from the preparation of a paper made of SWNTs bundles followed by the CVD-growth of NCD in the interior of the SWNT paper. Keeping balance between the two competing processes during the CVD, i.e. growth of diamond particles versus etching SWNTs, is found as a key factor for the formation of a compact SWNT/NCD composite material. From a technological point of view, both processes are influenced mainly by the CVD conditions (temperature, gas composition, etc.) and/or substrate pretreatment. The essential idea of the diamond integration into the SWNT paper is demonstrated and discussed in more details. The morphology and structural aspects of the prepared composite material are further characterized by scanning electron microscopy and Raman spectroscopy.

Organisation(en)

Physik Nanostrukturierter Materialien

Externe Organisation(en)

Danubia NanoTech Sro, Slovak Academy of Sciences (SAS), Czech Academy of Sciences, Slovak University of Technology in Bratislava

Journal

Applied Surface Science

Band

308

Seiten

211-215

Anzahl der Seiten

5

ISSN

0169-4332

DOI

https://doi.org/10.1016/j.apsusc.2014.04.137

Publikationsdatum

07-2014

Peer-reviewed

Ja

ÖFOS 2012

103020 Oberflächenphysik, 103018 Materialphysik

Schlagwörter

ASJC Scopus Sachgebiete

Condensed Matter Physics, Allgemeine Physik und Astronomie, Surfaces, Coatings and Films, Allgemeine Chemie, Surfaces and Interfaces

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/c39af622-bee4-4d80-a550-9ccdcf82a0e2