Effect of agarose concentration on coated micro-bottle resonators for humidity detection
Agarose is a stable hydrophilic material commonly used for relative humidity sensing application. Agarose porous nature causes changes in its refractive index as relative humidity change. Micro bottle resonators are a promising choice for sensing applications due to their good quality factor. In thi...
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my.um.eprints.278942022-03-31T04:28:12Z http://eprints.um.edu.my/27894/ Effect of agarose concentration on coated micro-bottle resonators for humidity detection Zain, Huda Adnan Batumalay, Malathy Abdul Rahim, Hazli Rafis Yasin, Moh Harun, Sulaiman Wadi QC Physics TA Engineering (General). Civil engineering (General) Agarose is a stable hydrophilic material commonly used for relative humidity sensing application. Agarose porous nature causes changes in its refractive index as relative humidity change. Micro bottle resonators are a promising choice for sensing applications due to their good quality factor. In this work, the effect of agarose gel concentration on micro-bottle ability to detect relative humidity changes was investigated. The agarose gel coating was made in two different concentrations 0.5% and 1%. These two concentrations were used as coating for microbottle resonators with the diameter of 190 mu m. The micro-bottle samples were made by the soften-and-compress technique. In the humidity range of 35%-85% RH, the 0.5% agarose gel coated microbottle had a sensitivity of 0.1077 dB/RH%. The microbottle resonator coated with the 1% solution showed a lower sensitivity of 0.0899 dB/RH%. This improvement in sensitivity with lower agarose gel concentration is due to the pore size of agarose gel. Yet, both concentrations showed improvement in sensitivity compared to the bare micro-bottle showing that agarose can be a potential choice for building sensitive efficient relative humidity sensors. John Wiley & Sons 2021-03 Article PeerReviewed Zain, Huda Adnan and Batumalay, Malathy and Abdul Rahim, Hazli Rafis and Yasin, Moh and Harun, Sulaiman Wadi (2021) Effect of agarose concentration on coated micro-bottle resonators for humidity detection. Microwave and Optical Technology Letters, 63 (7). pp. 1826-1831. ISSN 0895-2477, DOI https://doi.org/10.1002/mop.32838 <https://doi.org/10.1002/mop.32838>. 10.1002/mop.32838 |
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QC Physics TA Engineering (General). Civil engineering (General) Zain, Huda Adnan Batumalay, Malathy Abdul Rahim, Hazli Rafis Yasin, Moh Harun, Sulaiman Wadi Effect of agarose concentration on coated micro-bottle resonators for humidity detection |
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Agarose is a stable hydrophilic material commonly used for relative humidity sensing application. Agarose porous nature causes changes in its refractive index as relative humidity change. Micro bottle resonators are a promising choice for sensing applications due to their good quality factor. In this work, the effect of agarose gel concentration on micro-bottle ability to detect relative humidity changes was investigated. The agarose gel coating was made in two different concentrations 0.5% and 1%. These two concentrations were used as coating for microbottle resonators with the diameter of 190 mu m. The micro-bottle samples were made by the soften-and-compress technique. In the humidity range of 35%-85% RH, the 0.5% agarose gel coated microbottle had a sensitivity of 0.1077 dB/RH%. The microbottle resonator coated with the 1% solution showed a lower sensitivity of 0.0899 dB/RH%. This improvement in sensitivity with lower agarose gel concentration is due to the pore size of agarose gel. Yet, both concentrations showed improvement in sensitivity compared to the bare micro-bottle showing that agarose can be a potential choice for building sensitive efficient relative humidity sensors. |
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Article |
author |
Zain, Huda Adnan Batumalay, Malathy Abdul Rahim, Hazli Rafis Yasin, Moh Harun, Sulaiman Wadi |
author_facet |
Zain, Huda Adnan Batumalay, Malathy Abdul Rahim, Hazli Rafis Yasin, Moh Harun, Sulaiman Wadi |
author_sort |
Zain, Huda Adnan |
title |
Effect of agarose concentration on coated micro-bottle resonators for humidity detection |
title_short |
Effect of agarose concentration on coated micro-bottle resonators for humidity detection |
title_full |
Effect of agarose concentration on coated micro-bottle resonators for humidity detection |
title_fullStr |
Effect of agarose concentration on coated micro-bottle resonators for humidity detection |
title_full_unstemmed |
Effect of agarose concentration on coated micro-bottle resonators for humidity detection |
title_sort |
effect of agarose concentration on coated micro-bottle resonators for humidity detection |
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John Wiley & Sons |
publishDate |
2021 |
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http://eprints.um.edu.my/27894/ |
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1735409536176488448 |