Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO
A relative humidity sensor operating on intensity modulation principle is proposed and demonstrated using a tapered plastic optical fiber (POF) that is coated with seeded Al-doped ZnO nanostructures. The POF was tapered by mechanical etching and then coated with seeded Al-doped ZnO nanostructures us...
| Main Authors: | , , , , , |
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| Format: | Article |
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Elsevier B.V.
2017
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| Online Access: | http://eprints.intimal.edu.my/984/ |
| _version_ | 1848766616284692480 |
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| author | Harith, Z. Batumalay, Malathy* Irawati, N. Harun, S. W. Arof, Hamzah Ahmad, H. |
| author_facet | Harith, Z. Batumalay, Malathy* Irawati, N. Harun, S. W. Arof, Hamzah Ahmad, H. |
| author_sort | Harith, Z. |
| building | INTI Institutional Repository |
| collection | Online Access |
| description | A relative humidity sensor operating on intensity modulation principle is proposed and demonstrated using a tapered plastic optical fiber (POF) that is coated with seeded Al-doped ZnO nanostructures. The POF was tapered by mechanical etching and then coated with seeded Al-doped ZnO nanostructures using sol-gel immersion method with different mol% of Al nitrate that acted as dopant. It was found that 1 mol% of Al nitrate produced the best performance compared to other doping concentrations. Then the performances of sensors fabricated using seeded and non-seeded coating methods with 1 mol% of Al-doped ZnO were compared and investigated. The sensor developed using seeded coating method showed a better sensitivity of 0.0386 mV/%, as opposed to the other sensor which registered a sensitivity of 0.0148 mV/%. The results show that tapered POF with Al-doped ZnO nanostructures deposited using seeded coating method is excellent for detecting changes in relative humidity. |
| first_indexed | 2025-11-14T11:53:58Z |
| format | Article |
| id | intimal-984 |
| institution | INTI International University |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:53:58Z |
| publishDate | 2017 |
| publisher | Elsevier B.V. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | intimal-9842017-11-23T07:16:56Z http://eprints.intimal.edu.my/984/ Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO Harith, Z. Batumalay, Malathy* Irawati, N. Harun, S. W. Arof, Hamzah Ahmad, H. TA Engineering (General). Civil engineering (General) A relative humidity sensor operating on intensity modulation principle is proposed and demonstrated using a tapered plastic optical fiber (POF) that is coated with seeded Al-doped ZnO nanostructures. The POF was tapered by mechanical etching and then coated with seeded Al-doped ZnO nanostructures using sol-gel immersion method with different mol% of Al nitrate that acted as dopant. It was found that 1 mol% of Al nitrate produced the best performance compared to other doping concentrations. Then the performances of sensors fabricated using seeded and non-seeded coating methods with 1 mol% of Al-doped ZnO were compared and investigated. The sensor developed using seeded coating method showed a better sensitivity of 0.0386 mV/%, as opposed to the other sensor which registered a sensitivity of 0.0148 mV/%. The results show that tapered POF with Al-doped ZnO nanostructures deposited using seeded coating method is excellent for detecting changes in relative humidity. Elsevier B.V. 2017 Article PeerReviewed Harith, Z. and Batumalay, Malathy* and Irawati, N. and Harun, S. W. and Arof, Hamzah and Ahmad, H. (2017) Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO. International Journal for Light and Electron Optics, 144. pp. 257-262. ISSN 0030-4026 https://doi.org/10.1016/j.ijleo.2017.06.123 doi.org/10.1016/j.ijleo.2017.06.123 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Harith, Z. Batumalay, Malathy* Irawati, N. Harun, S. W. Arof, Hamzah Ahmad, H. Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO |
| title | Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO |
| title_full | Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO |
| title_fullStr | Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO |
| title_full_unstemmed | Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO |
| title_short | Relative humidity sensor employing tapered plastic optical fiber coated with seeded Al-doped ZnO |
| title_sort | relative humidity sensor employing tapered plastic optical fiber coated with seeded al-doped zno |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://eprints.intimal.edu.my/984/ http://eprints.intimal.edu.my/984/ http://eprints.intimal.edu.my/984/ |