Sensing Properties of ZnO-SWCNT Hybrid Nanostructure Coated on Flexible Substrate for CO2 Gas Detection

Hidayah, Qonitatul Sensing Properties of ZnO-SWCNT Hybrid Nanostructure Coated on Flexible Substrate for CO2 Gas Detection. Jurnal Sains Materi Indonesia (Indonesian Journal of Materials Science), 24 (1). ISSN 1411-1098 (print), 2614-087X (online)

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We report sensing properties of functionalized single walled carbon nanotubes (f-SWCNTs) deposited on the flexible substrate of silicon (Si) and polyethylene tereptaphalate (PET). Deposition of f-SWCNT on Si rubber and PET surface was conducted by applying different manner of spray coating and dip coating techniques, respectively. Surface modification of f-SWCNT by ZnO nanostructure was applied by hydrothermal process.The study was conducted to investigate the effect of substrate material and ZnO nanostructure on the f-SWCNT surface which embedded on those flexible polymer substrates. Morphological surface of f-SWCNT network and crystal structure of ZnO and f-SWCNT were also observed by scanning electron microscope (SEM) and X-ray diffraction, respectively. The results reveal that f-SWCNT on Si substrate (f-SWCNT/Si) do not have a good response in gas sensing performance. In meanwhile f-SWCNT on PET substrates (f-SWCNT/PET) is more sensitive about 1.6% with 3s in response. Surface structure of f –SWCNTs modified layer by ZnO nanostructure enhanced sensitivity and responsivenes of the sensor with sensitivity reached up 4.1% in 2s response after CO2 injection.It was observed that the ZnO nanostructured layer enhaced the sensing sensitivity and responsiveness of f-SWCNTs. The ZnO nanowires structure on the surface of f-SWCNTs has successfully improved the performance of CNTs as sensors. The bending treatment of up to 30% can reduce sensor sensitivity and change the configuration and arrangement of the CNT.

Item Type: Artikel Umum
Subjects: T Technology > T Technology (General)
T Technology > T Technology (General) > T201 Patents. Trademarks
Divisi / Prodi: Faculty of Applied Science and Technology (Fakultas Sains Dan Teknologi Terapan) > S1-Physics (S1-Fisika)
Depositing User: Qonitatul Hidayah
Date Deposited: 27 Oct 2023 01:45
Last Modified: 27 Oct 2023 01:45

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