Formaldehyde Sensing Using ZnO Nanorods Coated Glass Integrated With Microfiber
A proposed formaldehyde (CH2O) sensor is fabricated by exploiting evanescent wave on a glass surface coated with Zinc Oxide (ZnO) nanorods integrated with microfiber. The diameter of silica fiber is reduced by tapering using flame brushing technique to a waist diameter of 6 µm. The glass surface was...
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my.utem.eprints.242752020-08-04T12:31:57Z http://eprints.utem.edu.my/id/eprint/24275/ Formaldehyde Sensing Using ZnO Nanorods Coated Glass Integrated With Microfiber Jali, Mohd Hafiz Harun, Sulaiman Wadi Mohd Yusof, Haziezol Helmi Md Johari, Md Ashadi Abdul Rahim, Hazli Rafis Rahman, B. M.Azizur Yasin, Mohamad A proposed formaldehyde (CH2O) sensor is fabricated by exploiting evanescent wave on a glass surface coated with Zinc Oxide (ZnO) nanorods integrated with microfiber. The diameter of silica fiber is reduced by tapering using flame brushing technique to a waist diameter of 6 µm. The glass surface was coated with ZnO nanorods using hydrothermal synthesis method. A significant response to formaldehyde concentrations from 0 ppm to 0.18 ppm was observed due to strong chemisorption process and changeable refractive index of the ZnO nanorods coated glass surface. Thus, the output power of the proposed sensor has reduced linearly from −22.64 dBm to −24.24 dBm with sensitivity and resolution of 9.78 dBm/ppm and 0.0016 ppm respectively. Sensitivity improved by a factor of 3 and the resolution by a factor of 2.5 when the glass surface is coated as compared to uncoated glass surface. The proposed formaldehyde sensor exploit the distinctive features of strong evanescent wave from silica microfiber and surface absorption capability of ZnO nanorods coated glass surface which eased the handling procedure during the synthesis process and sensing applications. Based on the experimental result, the proposed sensor has demonstrated an excellent sensing performance as a formaldehyde sensor. Elsevier Ltd 2019-12 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/24275/2/FORMALDEHYDE%20SENSING%20USING%20ZNO%20NANORODS%20COATED%20GLASS%20INTEGRATED%20WITH%20MICROFIBER.PDF Jali, Mohd Hafiz and Harun, Sulaiman Wadi and Mohd Yusof, Haziezol Helmi and Md Johari, Md Ashadi and Abdul Rahim, Hazli Rafis and Rahman, B. M.Azizur and Yasin, Mohamad (2019) Formaldehyde Sensing Using ZnO Nanorods Coated Glass Integrated With Microfiber. Optics and Laser Technology, 120. pp. 1-9. ISSN 0030-3992 https://reader.elsevier.com/reader/sd/pii/S0030399219306310?token=E58EF72089622ED28A2DCBC632A18769497EDB75BA1FB77C1BCD23B7EE6CFA78E90BD4646A754E4A0B29E69BA3EF9C2E 10.1016/j.optlastec.2019.105750 |
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A proposed formaldehyde (CH2O) sensor is fabricated by exploiting evanescent wave on a glass surface coated with Zinc Oxide (ZnO) nanorods integrated with microfiber. The diameter of silica fiber is reduced by tapering using flame brushing technique to a waist diameter of 6 µm. The glass surface was coated with ZnO nanorods using hydrothermal synthesis method. A significant response to formaldehyde concentrations from 0 ppm to 0.18 ppm was observed due to strong chemisorption process and changeable refractive index of the ZnO nanorods coated glass surface. Thus, the output power of the proposed sensor has reduced linearly from −22.64 dBm to −24.24 dBm with sensitivity and resolution of 9.78 dBm/ppm and 0.0016 ppm respectively. Sensitivity improved by a factor of 3 and the resolution by a factor of 2.5 when the glass surface is coated as compared to uncoated glass surface. The proposed formaldehyde sensor exploit the distinctive features of strong evanescent wave from silica microfiber and surface absorption capability of ZnO nanorods coated glass surface which eased the handling procedure during the synthesis process and sensing applications. Based on the experimental result, the proposed sensor has demonstrated an excellent sensing performance as a formaldehyde sensor. |
format |
Article |
author |
Jali, Mohd Hafiz Harun, Sulaiman Wadi Mohd Yusof, Haziezol Helmi Md Johari, Md Ashadi Abdul Rahim, Hazli Rafis Rahman, B. M.Azizur Yasin, Mohamad |
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Jali, Mohd Hafiz Harun, Sulaiman Wadi Mohd Yusof, Haziezol Helmi Md Johari, Md Ashadi Abdul Rahim, Hazli Rafis Rahman, B. M.Azizur Yasin, Mohamad Formaldehyde Sensing Using ZnO Nanorods Coated Glass Integrated With Microfiber |
author_facet |
Jali, Mohd Hafiz Harun, Sulaiman Wadi Mohd Yusof, Haziezol Helmi Md Johari, Md Ashadi Abdul Rahim, Hazli Rafis Rahman, B. M.Azizur Yasin, Mohamad |
author_sort |
Jali, Mohd Hafiz |
title |
Formaldehyde Sensing Using ZnO Nanorods Coated Glass Integrated With Microfiber |
title_short |
Formaldehyde Sensing Using ZnO Nanorods Coated Glass Integrated With Microfiber |
title_full |
Formaldehyde Sensing Using ZnO Nanorods Coated Glass Integrated With Microfiber |
title_fullStr |
Formaldehyde Sensing Using ZnO Nanorods Coated Glass Integrated With Microfiber |
title_full_unstemmed |
Formaldehyde Sensing Using ZnO Nanorods Coated Glass Integrated With Microfiber |
title_sort |
formaldehyde sensing using zno nanorods coated glass integrated with microfiber |
publisher |
Elsevier Ltd |
publishDate |
2019 |
url |
http://eprints.utem.edu.my/id/eprint/24275/2/FORMALDEHYDE%20SENSING%20USING%20ZNO%20NANORODS%20COATED%20GLASS%20INTEGRATED%20WITH%20MICROFIBER.PDF http://eprints.utem.edu.my/id/eprint/24275/ https://reader.elsevier.com/reader/sd/pii/S0030399219306310?token=E58EF72089622ED28A2DCBC632A18769497EDB75BA1FB77C1BCD23B7EE6CFA78E90BD4646A754E4A0B29E69BA3EF9C2E |
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1675330921298919424 |
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13.160551 |