Synthesis of Multiwall Carbon Nanotube and their Thin Films for Infrared Sensor Applications

Muhammad Mansoor; S. Siddique; M.M. Asim

doi:10.4028/www.scientific.net/KEM.442.116

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 442Synthesis of Multiwall Carbon Nanotube and their...

Synthesis of Multiwall Carbon Nanotube and their Thin Films for Infrared Sensor Applications

Abstract:

Catalytic synthesis of carbon multiwall nanotubes (MWCNT) was carried out by chemical vapor deposition. Synthesis temperature was 750oC, whereas, iron nitrate and ethanol was used as catalyst and carbonaceous source, respectively. The carbon nanotubes produced were multiwall and tangled in nature with nominal diameter of 50nm and length 2.5µm. These MWCNTs were purified by an acidic treatment and subsequently functionalized by chemical oxidation. After synthesis and functionalizing, a thin film of MWCNT was deposited on quartz substrates which were coated with copper electrodes. Investigations showed that during film preparation a bridging of CNTs was established between the copper electrodes which were further revealed to be semi-conductive by current Vs voltage testing. The discernable characteristics included batter conduction and infrared photocurrent responses.

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Periodical:

Key Engineering Materials (Volume 442)

Pages:

116-122

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.442.116

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Online since:

June 2010

Authors:

Muhammad Mansoor, S. Siddique, M.M. Asim

Keywords:

Acid Functionalizing, CCVD, IR Photocurrent Testing, I-V Testing, Synthesis of MWCNT, Thin Film Deposition

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