Optimization of Aluminum Dopant Amalgamation Immersion Time on Structural, Electrical, and Humidity-Sensing Attributes of Pristine ZnO for Flexible Humidity Sensor Application Article Swipe
A Shamsul Rahimi A Subki
,
Mohamad Hafiz Mamat
,
M.Z. Musa
,
Mohd Hanapiah Abdullah
,
I. B. Shameem Banu
,
N. Vasimalai
,
Mohd Khairul Ahmad
,
Nafarizal Nayan
,
Suriani Abu Bakar
,
Azmi Mohamed
,
Muhammad Danang Birowosuto
,
Mohamad Rusop Mahmood
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3390/chemosensors10110489
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3390/chemosensors10110489
This study synthesized pristine and aluminum (Al)-doped zinc oxide (Al:ZnO) nanostructures through a simplistic low-temperature ultrasonicated solution immersion method. Al:ZnO nanostructures were synthesized as a sensing material using different immersion times varying from two to five hours. The Al:ZnO nanostructured-based flexible humidity sensor was fabricated by employing cellulose filter paper as a substrate and transparent paper glue as a binder through a simplistic brush printing technique. XRD, FESEM, HRTEM, EDS, XPS, a two-probe I–V measurement system, and a humidity measurement system were employed to investigate the structural, morphological, chemical, electrical, and humidity-sensing properties of the pristine ZnO and Al:ZnO nanostructures. The structural and morphological analysis confirmed that Al cations successfully occupied the Zn lattice or integrated into interstitial sites of the ZnO lattice matrix. Humidity-sensing performance analysis indicated that the resistance of the Al:ZnO nanostructure samples decreased almost linearly as the humidity level increased, leading to better sensitivity and sensing response. The Al:ZnO-4 h nanostructured-based flexible humidity sensor had a maximum sensing response and demonstrated the highest sensitivity towards humidity changes, which was noticeably superior to the other tested samples. Finally, this study explained the Al:ZnO nanostructures-based flexible humidity sensor sensing mechanism in terms of chemical adsorption, physical adsorption, and capillary condensation mechanisms.
Related Topics
Concepts
Materials science
Humidity
Nanostructure
Dopant
Chemical engineering
Sublimation (psychology)
X-ray photoelectron spectroscopy
Nanotechnology
High-resolution transmission electron microscopy
Composite material
Optoelectronics
Doping
Transmission electron microscopy
Psychotherapist
Engineering
Thermodynamics
Physics
Psychology
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/chemosensors10110489
- https://www.mdpi.com/2227-9040/10/11/489/pdf?version=1668679569
- OA Status
- gold
- Cited By
- 14
- References
- 99
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4309460451
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4309460451Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/chemosensors10110489Digital Object Identifier
- Title
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Optimization of Aluminum Dopant Amalgamation Immersion Time on Structural, Electrical, and Humidity-Sensing Attributes of Pristine ZnO for Flexible Humidity Sensor ApplicationWork title
- Type
-
articleOpenAlex work type
- Language
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enPrimary language
- Publication year
-
2022Year of publication
- Publication date
-
2022-11-17Full publication date if available
- Authors
-
A Shamsul Rahimi A Subki, Mohamad Hafiz Mamat, M.Z. Musa, Mohd Hanapiah Abdullah, I. B. Shameem Banu, N. Vasimalai, Mohd Khairul Ahmad, Nafarizal Nayan, Suriani Abu Bakar, Azmi Mohamed, Muhammad Danang Birowosuto, Mohamad Rusop MahmoodList of authors in order
- Landing page
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https://doi.org/10.3390/chemosensors10110489Publisher landing page
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https://www.mdpi.com/2227-9040/10/11/489/pdf?version=1668679569Direct link to full text PDF
- Open access
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YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
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https://www.mdpi.com/2227-9040/10/11/489/pdf?version=1668679569Direct OA link when available
- Concepts
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Materials science, Humidity, Nanostructure, Dopant, Chemical engineering, Sublimation (psychology), X-ray photoelectron spectroscopy, Nanotechnology, High-resolution transmission electron microscopy, Composite material, Optoelectronics, Doping, Transmission electron microscopy, Psychotherapist, Engineering, Thermodynamics, Physics, PsychologyTop concepts (fields/topics) attached by OpenAlex
- Cited by
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14Total citation count in OpenAlex
- Citations by year (recent)
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2025: 4, 2024: 4, 2023: 6Per-year citation counts (last 5 years)
- References (count)
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99Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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| abstract_inverted_index.Al:ZnO | 19, 38, 98, 133, 185 |
| abstract_inverted_index.FESEM, | 67 |
| abstract_inverted_index.HRTEM, | 68 |
| abstract_inverted_index.almost | 137 |
| abstract_inverted_index.better | 146 |
| abstract_inverted_index.binder | 59 |
| abstract_inverted_index.filter | 48 |
| abstract_inverted_index.hours. | 36 |
| abstract_inverted_index.sensor | 42, 157, 189 |
| abstract_inverted_index.system | 80 |
| abstract_inverted_index.tested | 178 |
| abstract_inverted_index.cations | 108 |
| abstract_inverted_index.highest | 166 |
| abstract_inverted_index.lattice | 113, 122 |
| abstract_inverted_index.leading | 144 |
| abstract_inverted_index.matrix. | 123 |
| abstract_inverted_index.maximum | 160 |
| abstract_inverted_index.method. | 18 |
| abstract_inverted_index.samples | 135 |
| abstract_inverted_index.sensing | 25, 149, 161, 190 |
| abstract_inverted_index.system, | 75 |
| abstract_inverted_index.through | 11, 60 |
| abstract_inverted_index.towards | 168 |
| abstract_inverted_index.varying | 31 |
| abstract_inverted_index.(Al:ZnO) | 9 |
| abstract_inverted_index.Al:ZnO-4 | 152 |
| abstract_inverted_index.Finally, | 180 |
| abstract_inverted_index.aluminum | 5 |
| abstract_inverted_index.analysis | 104, 126 |
| abstract_inverted_index.changes, | 170 |
| abstract_inverted_index.chemical | 195 |
| abstract_inverted_index.employed | 82 |
| abstract_inverted_index.flexible | 40, 155, 187 |
| abstract_inverted_index.humidity | 41, 78, 141, 156, 169, 188 |
| abstract_inverted_index.linearly | 138 |
| abstract_inverted_index.material | 26 |
| abstract_inverted_index.occupied | 110 |
| abstract_inverted_index.physical | 197 |
| abstract_inverted_index.printing | 64 |
| abstract_inverted_index.pristine | 3, 95 |
| abstract_inverted_index.response | 162 |
| abstract_inverted_index.samples. | 179 |
| abstract_inverted_index.solution | 16 |
| abstract_inverted_index.superior | 174 |
| abstract_inverted_index.capillary | 200 |
| abstract_inverted_index.cellulose | 47 |
| abstract_inverted_index.chemical, | 88 |
| abstract_inverted_index.confirmed | 105 |
| abstract_inverted_index.decreased | 136 |
| abstract_inverted_index.different | 28 |
| abstract_inverted_index.employing | 46 |
| abstract_inverted_index.explained | 183 |
| abstract_inverted_index.immersion | 17, 29 |
| abstract_inverted_index.indicated | 127 |
| abstract_inverted_index.mechanism | 191 |
| abstract_inverted_index.response. | 150 |
| abstract_inverted_index.substrate | 52 |
| abstract_inverted_index.two-probe | 72 |
| abstract_inverted_index.(Al)-doped | 6 |
| abstract_inverted_index.fabricated | 44 |
| abstract_inverted_index.increased, | 143 |
| abstract_inverted_index.integrated | 115 |
| abstract_inverted_index.noticeably | 173 |
| abstract_inverted_index.properties | 92 |
| abstract_inverted_index.resistance | 130 |
| abstract_inverted_index.simplistic | 13, 62 |
| abstract_inverted_index.structural | 101 |
| abstract_inverted_index.technique. | 65 |
| abstract_inverted_index.adsorption, | 196, 198 |
| abstract_inverted_index.electrical, | 89 |
| abstract_inverted_index.investigate | 84 |
| abstract_inverted_index.measurement | 74, 79 |
| abstract_inverted_index.mechanisms. | 202 |
| abstract_inverted_index.performance | 125 |
| abstract_inverted_index.sensitivity | 147, 167 |
| abstract_inverted_index.structural, | 86 |
| abstract_inverted_index.synthesized | 2, 22 |
| abstract_inverted_index.transparent | 54 |
| abstract_inverted_index.condensation | 201 |
| abstract_inverted_index.demonstrated | 164 |
| abstract_inverted_index.interstitial | 117 |
| abstract_inverted_index.successfully | 109 |
| abstract_inverted_index.morphological | 103 |
| abstract_inverted_index.nanostructure | 134 |
| abstract_inverted_index.morphological, | 87 |
| abstract_inverted_index.nanostructures | 10, 20 |
| abstract_inverted_index.ultrasonicated | 15 |
| abstract_inverted_index.low-temperature | 14 |
| abstract_inverted_index.nanostructures. | 99 |
| abstract_inverted_index.Humidity-sensing | 124 |
| abstract_inverted_index.humidity-sensing | 91 |
| abstract_inverted_index.nanostructured-based | 39, 154 |
| abstract_inverted_index.nanostructures-based | 186 |
| cited_by_percentile_year.max | 98 |
| cited_by_percentile_year.min | 97 |
| corresponding_author_ids | https://openalex.org/A5043920313 |
| countries_distinct_count | 3 |
| institutions_distinct_count | 12 |
| corresponding_institution_ids | https://openalex.org/I82724352 |
| citation_normalized_percentile.value | 0.81035827 |
| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | False |