首页|Synthesis of Multiwall Carbon Nanotube and Their Thin Films for Infrared Sensor Applications
Synthesis of Multiwall Carbon Nanotube and Their Thin Films for Infrared Sensor Applications
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Trans Tech Publications Ltd
Catalytic synthesis of carbon multiwall nanotubes (MWCNT) was carried out by chemical vapor deposition. Synthesis temperature was 750℃, 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.
synthesis of MWCNTCCVDacid functionalizingthin film depositionI-V testingIR photocurrent testing
M. Mansoor、S. Siddique、M.M. Asim
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Institute of Industrial Control Systems, P.O. Box 1398, Rawalpindi, Pakistan
NETL
NSTL
Trans Tech Publications Ltd
