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MAJZLÍKOVÁ, P. ZAJÍČKOVÁ, L. HUBÁLEK, J. SEDLÁČEK, J. PRÁŠEK, J. PEKÁREK, J. SVATOŠ, V. BANNOV, A. JAŠEK, O. SYNEK, P. ELIÁŠ, M.
Original Title
Sensing Properties of Multiwalled Carbon Nanotubes Grown in MW Plasma Torch: Electronic and Electrochemical Behavior, Gas Sensing, Field Emission, IR Absorption
Type
journal article in Web of Science
Language
English
Original Abstract
Vertically aligned multi-walled carbon nanotubes (VA-MWCNTs) with an average diameter below 80 nm and a thickness of the uniform VA-MWCNT layer of about 16 um were grown in microwave plasma torch and tested for selected functional properties. IR absorption important for a construction of bolometers was studied by Fourier transform infrared spectroscopy. Basic electrochemical characterization was performed by cyclic voltammetry. Comparing the obtained results with the standard or MWCNT modified screen-printed electrodes, the prepared VA-MWCNT electrodes indicated their high potential for the construction of electrochemical sensors. Resistive CNT gas sensor revealed a good sensitivity to ammonia taking into account room temperature operation. Field emission detected from CNTs was suitable for the pressure sensing application based on the measurement of emission current in the diode structure with bending diaphragm. The advantages of microwave plasma torch growth of CNTs, i.e., fast processing and versatility of the process, can be therefore fully exploited for the integration of surface-bound grown CNTs into various sensing structures.
Keywords
carbon nanotubes; microwave torch; plasma enhanced chemical vapor deposition; electronic properties; electrochemical sensor; gas sensor; field emission; IR absorption
Authors
MAJZLÍKOVÁ, P.; ZAJÍČKOVÁ, L.; HUBÁLEK, J.; SEDLÁČEK, J.; PRÁŠEK, J.; PEKÁREK, J.; SVATOŠ, V.; BANNOV, A.; JAŠEK, O.; SYNEK, P.; ELIÁŠ, M.
RIV year
2015
Released
1. 2. 2015
Publisher
MDPI AG
Location
Switzerland
ISBN
1424-8220
Periodical
SENSORS
Year of study
15
Number
2
State
Swiss Confederation
Pages from
2644
Pages to
2661
Pages count
18
URL
http://www.mdpi.com/1424-8220/15/2/2644
Full text in the Digital Library
http://hdl.handle.net/11012/37373
BibTex
@article{BUT112541, author="Petra {Majzlíková} and Jiří {Sedláček} and Jan {Prášek} and Jan {Pekárek} and Vojtěch {Svatoš} and Alexander G. {Bannov} and Ondřej {Jašek} and Petr {Synek} and Marek {Eliáš} and Lenka {Zajíčková} and Jaromír {Hubálek}", title="Sensing Properties of Multiwalled Carbon Nanotubes Grown in MW Plasma Torch: Electronic and Electrochemical Behavior, Gas Sensing, Field Emission, IR Absorption", journal="SENSORS", year="2015", volume="15", number="2", pages="2644--2661", doi="10.3390/s150202644", issn="1424-8220", url="http://www.mdpi.com/1424-8220/15/2/2644" }