Tapered Plastic Optical Fiber Coated With Al-Doped ZnO Nanostructures for Detecting Relative Humidity
A relative humidity (RH) sensor is demonstrated using a tapered plastic optical fiber (POF) that is coated with Al-doped ZnO nanostructures. A simple etching method was used to fabricate the tapered POF that operates based on intensity modulation technique. The tapered fiber was then coated with Al-...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2015
|
| Subjects: | |
| Online Access: | http://eprints.intimal.edu.my/24/ http://eprints.intimal.edu.my/24/1/Tapered%20Plastic%20Optical%20Fiber%20Coated%20With%20Al-Doped%20ZnO%20Nanostructures%20for%20Detecting%20Relative%20Humidity.pdf |
| _version_ | 1848766378622844928 |
|---|---|
| author | Harith, Zuraidah Ninik, Irawati Hartini, Ahmad Rafaie Batumalay, Malathy* Sulaiman, Wadi Harun Roslan, Md Nor Ahmad, Harith |
| author_facet | Harith, Zuraidah Ninik, Irawati Hartini, Ahmad Rafaie Batumalay, Malathy* Sulaiman, Wadi Harun Roslan, Md Nor Ahmad, Harith |
| author_sort | Harith, Zuraidah |
| building | INTI Institutional Repository |
| collection | Online Access |
| description | A relative humidity (RH) sensor is demonstrated using a tapered plastic optical fiber (POF) that is coated with Al-doped ZnO nanostructures. A simple etching method was used to fabricate the tapered POF that operates based on intensity modulation technique. The tapered fiber was then coated with Al-doped ZnO nanostructures using sol-gel immersion method with different mol% of Al nitrate that acts as a dopant. The 1 mol% of Al nitrate that used in the synthesis process exhibited better performance compared with the other doping concentrations. Then, results obtained for both undoped ZnO and 1 mol% of Al-doped ZnO were compared and investigated. The performance of 1 mol% of Al-doped ZnO demonstrated better linearity and sensitivity of 97.5% and 0.0172 mV/%, respectively, whereas the undoped ZnO yielded linearity and sensitivity of 93.3% and 0.0029 mV/%, respectively. The proposed sensor provides numerous advantages, such as simplicity of design, low cost of production, higher mechanical strength, and is easier to handle compared with silica fiber optic. Results show that tapered POF with Al-doped ZnO nanostructures enables the increase in sensitivity of fiber for detection of changes in RH. |
| first_indexed | 2025-11-14T11:50:12Z |
| format | Article |
| id | intimal-24 |
| institution | INTI International University |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:50:12Z |
| publishDate | 2015 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | intimal-242017-11-16T05:36:03Z http://eprints.intimal.edu.my/24/ Tapered Plastic Optical Fiber Coated With Al-Doped ZnO Nanostructures for Detecting Relative Humidity Harith, Zuraidah Ninik, Irawati Hartini, Ahmad Rafaie Batumalay, Malathy* Sulaiman, Wadi Harun Roslan, Md Nor Ahmad, Harith T Technology (General) A relative humidity (RH) sensor is demonstrated using a tapered plastic optical fiber (POF) that is coated with Al-doped ZnO nanostructures. A simple etching method was used to fabricate the tapered POF that operates based on intensity modulation technique. The tapered fiber was then coated with Al-doped ZnO nanostructures using sol-gel immersion method with different mol% of Al nitrate that acts as a dopant. The 1 mol% of Al nitrate that used in the synthesis process exhibited better performance compared with the other doping concentrations. Then, results obtained for both undoped ZnO and 1 mol% of Al-doped ZnO were compared and investigated. The performance of 1 mol% of Al-doped ZnO demonstrated better linearity and sensitivity of 97.5% and 0.0172 mV/%, respectively, whereas the undoped ZnO yielded linearity and sensitivity of 93.3% and 0.0029 mV/%, respectively. The proposed sensor provides numerous advantages, such as simplicity of design, low cost of production, higher mechanical strength, and is easier to handle compared with silica fiber optic. Results show that tapered POF with Al-doped ZnO nanostructures enables the increase in sensitivity of fiber for detection of changes in RH. IEEE 2015 Article PeerReviewed text en http://eprints.intimal.edu.my/24/1/Tapered%20Plastic%20Optical%20Fiber%20Coated%20With%20Al-Doped%20ZnO%20Nanostructures%20for%20Detecting%20Relative%20Humidity.pdf Harith, Zuraidah and Ninik, Irawati and Hartini, Ahmad Rafaie and Batumalay, Malathy* and Sulaiman, Wadi Harun and Roslan, Md Nor and Ahmad, Harith (2015) Tapered Plastic Optical Fiber Coated With Al-Doped ZnO Nanostructures for Detecting Relative Humidity. IEEE Sensors Journal, 15 (2). pp. 845-849. ISSN 1530-437X 10.1109/JSEN.2014.2353038 |
| spellingShingle | T Technology (General) Harith, Zuraidah Ninik, Irawati Hartini, Ahmad Rafaie Batumalay, Malathy* Sulaiman, Wadi Harun Roslan, Md Nor Ahmad, Harith Tapered Plastic Optical Fiber Coated With Al-Doped ZnO Nanostructures for Detecting Relative Humidity |
| title | Tapered Plastic Optical Fiber Coated With Al-Doped ZnO Nanostructures for Detecting Relative Humidity |
| title_full | Tapered Plastic Optical Fiber Coated With Al-Doped ZnO Nanostructures for Detecting Relative Humidity |
| title_fullStr | Tapered Plastic Optical Fiber Coated With Al-Doped ZnO Nanostructures for Detecting Relative Humidity |
| title_full_unstemmed | Tapered Plastic Optical Fiber Coated With Al-Doped ZnO Nanostructures for Detecting Relative Humidity |
| title_short | Tapered Plastic Optical Fiber Coated With Al-Doped ZnO Nanostructures for Detecting Relative Humidity |
| title_sort | tapered plastic optical fiber coated with al-doped zno nanostructures for detecting relative humidity |
| topic | T Technology (General) |
| url | http://eprints.intimal.edu.my/24/ http://eprints.intimal.edu.my/24/ http://eprints.intimal.edu.my/24/1/Tapered%20Plastic%20Optical%20Fiber%20Coated%20With%20Al-Doped%20ZnO%20Nanostructures%20for%20Detecting%20Relative%20Humidity.pdf |