Growth of MWCNTs on Plasma Ion-Bombarded Thin Gold Films and Their Enhancements of Ammonia-Sensing Properties Using Inkjet Printing
Joint Authors
Pakdee, Udomdej
Thaibunnak, Ananya
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-06-02
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Multiwalled carbon nanotubes (MWCNTs) have been synthesized on thin gold (Au) films using thermal chemical vapor deposition (CVD).
The films were evolved to catalytic Au nanoparticles (Au NPs) by plasma argon (Ar) ion bombardment with a direct current (DC) power of 216 W.
The characteristics of the MWCNTs grown on Au catalysts are strongly dependent on the growth temperature in thermal CVD process.
The MWCNTs were then purified by oxidation (550°C) and acid treatments (3 : 1 H2SO4/HNO3).
After purifying the MWCNTs, they were dispersed in deionized water (DI water) under continuous sonication.
The MWCNT solution was then ultrasonically dissolved in a conducting polymer mixture of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) to prepare for an electronic ink.
The ink was deposited onto the flexible and transparent plastic substrates such as polyethylene terephthalate (PET) with fabricated silver interdigitated electrode using two methods such as drop-casting and inkjet printing to compare in the detection of ammonia (NH3) and other volatile organic compounds (VOCs) at room temperature.
Based on the results, the gas response, sensitivity, and selectivity properties of MWCNT-PEDOT:PSS gas sensor for NH3 detection are significantly enhanced by using inkjet printing technique.
The sensing mechanism of fabricated gas sensor exposed to NH3 has been also proposed based on the swelling behaviour of polymer due to the diffusion of NH3 molecules into the polymer matrix.
For the MWCNTs, they were mentioned as the conductive pathways for the enhancement of gas-sensing signals.
American Psychological Association (APA)
Pakdee, Udomdej& Thaibunnak, Ananya. 2019. Growth of MWCNTs on Plasma Ion-Bombarded Thin Gold Films and Their Enhancements of Ammonia-Sensing Properties Using Inkjet Printing. Journal of Nanotechnology،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1183731
Modern Language Association (MLA)
Pakdee, Udomdej& Thaibunnak, Ananya. Growth of MWCNTs on Plasma Ion-Bombarded Thin Gold Films and Their Enhancements of Ammonia-Sensing Properties Using Inkjet Printing. Journal of Nanotechnology No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1183731
American Medical Association (AMA)
Pakdee, Udomdej& Thaibunnak, Ananya. Growth of MWCNTs on Plasma Ion-Bombarded Thin Gold Films and Their Enhancements of Ammonia-Sensing Properties Using Inkjet Printing. Journal of Nanotechnology. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1183731
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1183731