Unveiling the importance of controllable growth of c-axis oriented Sn-doped ZnO nanorod arrays: Towards humidity sensing applications
In this study, tin (Sn)-doped zinc oxide (ZnO) nanorod arrays (SZO) were prepared using a sonication assisted solgel immersion method, with the growth of the nanorod arrays controlled by varying the immersion time in the precursor material. Morphology images taken using a Field Emission Scanning El...
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2024
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| Online Access: | http://eprints.uthm.edu.my/12664/1/J19211_e8717d17782334a2e875c9a11b3f019b.pdf http://eprints.uthm.edu.my/12664/ https://doi.org/10.1016/j.ceramint.2024.11.424 |
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| author | Ismail, A.S Mamat, M.H Mohamed, R Embong, Z Kossar, S |
| author_facet | Ismail, A.S Mamat, M.H Mohamed, R Embong, Z Kossar, S |
| author_sort | Ismail, A.S |
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| content_provider | Universiti Tun Hussein Onn Malaysia |
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| continent | Asia |
| country | Malaysia |
| description | In this study, tin (Sn)-doped zinc oxide (ZnO) nanorod arrays (SZO) were prepared using a sonication assisted solgel immersion method, with the growth of the nanorod arrays controlled by varying the immersion time in the
precursor material. Morphology images taken using a Field Emission Scanning Electron Microscope (FESEM) demonstrated an enlargement of the average diameter of the nanorod arrays from 55 nm at 5 min immersion to 122 nm at 200 min immersion. The cross-sectional and surface elemental analysis showed that the sample immersed for 60 min has the highest detection of Sn, with a bulk concentration of 1.8 at.% and surface concentration of 1 at.%. Interestingly, we noticed that Sn is not exist on the surface of 200 min immersion, indicating
the depletion of the Sn precursor due to the prolongation of the immersion time. From the current voltage (I-V) analysis, 60 min immersion sample generated the lowest thin film resistivity, which engendered the best humidity sensitivity of 4.05. This study demonstrated the significant importance of optimizing the immersion or growth time for doped 1-D nanostructures to obtain the best humidity sensing performance. |
| format | Article |
| id | my.uthm.eprints-12664 |
| institution | Universiti Tun Hussein Onn Malaysia |
| language | en |
| publishDate | 2024 |
| publisher | elsevier |
| record_format | eprints |
| spelling | my.uthm.eprints-126642025-06-05T07:09:44Z http://eprints.uthm.edu.my/12664/ Unveiling the importance of controllable growth of c-axis oriented Sn-doped ZnO nanorod arrays: Towards humidity sensing applications Ismail, A.S Mamat, M.H Mohamed, R Embong, Z Kossar, S TK Electrical engineering. Electronics Nuclear engineering In this study, tin (Sn)-doped zinc oxide (ZnO) nanorod arrays (SZO) were prepared using a sonication assisted solgel immersion method, with the growth of the nanorod arrays controlled by varying the immersion time in the precursor material. Morphology images taken using a Field Emission Scanning Electron Microscope (FESEM) demonstrated an enlargement of the average diameter of the nanorod arrays from 55 nm at 5 min immersion to 122 nm at 200 min immersion. The cross-sectional and surface elemental analysis showed that the sample immersed for 60 min has the highest detection of Sn, with a bulk concentration of 1.8 at.% and surface concentration of 1 at.%. Interestingly, we noticed that Sn is not exist on the surface of 200 min immersion, indicating the depletion of the Sn precursor due to the prolongation of the immersion time. From the current voltage (I-V) analysis, 60 min immersion sample generated the lowest thin film resistivity, which engendered the best humidity sensitivity of 4.05. This study demonstrated the significant importance of optimizing the immersion or growth time for doped 1-D nanostructures to obtain the best humidity sensing performance. elsevier 2024 Article PeerReviewed text en http://eprints.uthm.edu.my/12664/1/J19211_e8717d17782334a2e875c9a11b3f019b.pdf Ismail, A.S and Mamat, M.H and Mohamed, R and Embong, Z and Kossar, S (2024) Unveiling the importance of controllable growth of c-axis oriented Sn-doped ZnO nanorod arrays: Towards humidity sensing applications. Ceramics International. pp. 1-13. https://doi.org/10.1016/j.ceramint.2024.11.424 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Ismail, A.S Mamat, M.H Mohamed, R Embong, Z Kossar, S Unveiling the importance of controllable growth of c-axis oriented Sn-doped ZnO nanorod arrays: Towards humidity sensing applications |
| title | Unveiling the importance of controllable growth of c-axis oriented Sn-doped ZnO nanorod arrays: Towards humidity sensing applications |
| title_full | Unveiling the importance of controllable growth of c-axis oriented Sn-doped ZnO nanorod arrays: Towards humidity sensing applications |
| title_fullStr | Unveiling the importance of controllable growth of c-axis oriented Sn-doped ZnO nanorod arrays: Towards humidity sensing applications |
| title_full_unstemmed | Unveiling the importance of controllable growth of c-axis oriented Sn-doped ZnO nanorod arrays: Towards humidity sensing applications |
| title_short | Unveiling the importance of controllable growth of c-axis oriented Sn-doped ZnO nanorod arrays: Towards humidity sensing applications |
| title_sort | unveiling the importance of controllable growth of c-axis oriented sn-doped zno nanorod arrays: towards humidity sensing applications |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://eprints.uthm.edu.my/12664/1/J19211_e8717d17782334a2e875c9a11b3f019b.pdf http://eprints.uthm.edu.my/12664/ https://doi.org/10.1016/j.ceramint.2024.11.424 |
| url_provider | http://eprints.uthm.edu.my/ |