Enhanced sensitivity of zinc phthalocyanine-based microporous humidity sensors by varying size of electrode gaps
The use of organic materials has become an increasingly important issue in sensing devices in recent times. Phthalocyanine is among the most promising materials in this undertaking. Zinc phthalocyanine (ZnPc) based microporous device was fabricated and its capacitance was utilized as the sensing mec...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021
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| Online Access: | http://psasir.upm.edu.my/id/eprint/97096/ http://psasir.upm.edu.my/id/eprint/97096/1/ABSTRACT.pdf |
| _version_ | 1848862514423529472 |
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| author | Mohamed Safian, Nur Azmina Anuar, Afiq Omar, Al-Zuhairi Bawazeer, Tahani M. Alsenany, Nourah Alsoufi, Mohammad S. Supangat, Azzuliani Roslan, Nur Adilah |
| author_facet | Mohamed Safian, Nur Azmina Anuar, Afiq Omar, Al-Zuhairi Bawazeer, Tahani M. Alsenany, Nourah Alsoufi, Mohammad S. Supangat, Azzuliani Roslan, Nur Adilah |
| author_sort | Mohamed Safian, Nur Azmina |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The use of organic materials has become an increasingly important issue in sensing devices in recent times. Phthalocyanine is among the most promising materials in this undertaking. Zinc phthalocyanine (ZnPc) based microporous device was fabricated and its capacitance was utilized as the sensing mechanism for a humidity sensor. The effect of the electrode gap of the device on the electrical properties was investigated along with the correlation between the device’s performances and the morphology of the sensing film. Using the solution-processed spin coating method, the capacitive type humidity sensor devices have been fabricated in a planar geometry of Al/ZnPc/Al with the presence of a microporous template. The size of electrode gaps measured with a surface profiler was 53.00 ± 0.06 μm, 119.00 ± 0.03 μm and 286.00 ± 0.01 μm. The surface morphology was characterized by using transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM) and X-ray photoelectron spectroscopy (XPS). Analysis of the experimental results showed that the device with the shortest electrode gap (53.00 μm) produced the best sensitivity of 1.03 ± 0.04 pF/%RH than that of the longer gaps. Additionally, hysteresis as well as response and recovery performances have also been investigated. |
| first_indexed | 2025-11-15T13:18:14Z |
| format | Article |
| id | upm-97096 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T13:18:14Z |
| publishDate | 2021 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-970962022-10-14T03:24:12Z http://psasir.upm.edu.my/id/eprint/97096/ Enhanced sensitivity of zinc phthalocyanine-based microporous humidity sensors by varying size of electrode gaps Mohamed Safian, Nur Azmina Anuar, Afiq Omar, Al-Zuhairi Bawazeer, Tahani M. Alsenany, Nourah Alsoufi, Mohammad S. Supangat, Azzuliani Roslan, Nur Adilah The use of organic materials has become an increasingly important issue in sensing devices in recent times. Phthalocyanine is among the most promising materials in this undertaking. Zinc phthalocyanine (ZnPc) based microporous device was fabricated and its capacitance was utilized as the sensing mechanism for a humidity sensor. The effect of the electrode gap of the device on the electrical properties was investigated along with the correlation between the device’s performances and the morphology of the sensing film. Using the solution-processed spin coating method, the capacitive type humidity sensor devices have been fabricated in a planar geometry of Al/ZnPc/Al with the presence of a microporous template. The size of electrode gaps measured with a surface profiler was 53.00 ± 0.06 μm, 119.00 ± 0.03 μm and 286.00 ± 0.01 μm. The surface morphology was characterized by using transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM) and X-ray photoelectron spectroscopy (XPS). Analysis of the experimental results showed that the device with the shortest electrode gap (53.00 μm) produced the best sensitivity of 1.03 ± 0.04 pF/%RH than that of the longer gaps. Additionally, hysteresis as well as response and recovery performances have also been investigated. Elsevier 2021 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/97096/1/ABSTRACT.pdf Mohamed Safian, Nur Azmina and Anuar, Afiq and Omar, Al-Zuhairi and Bawazeer, Tahani M. and Alsenany, Nourah and Alsoufi, Mohammad S. and Supangat, Azzuliani and Roslan, Nur Adilah (2021) Enhanced sensitivity of zinc phthalocyanine-based microporous humidity sensors by varying size of electrode gaps. Sensors and Actuators B: Chemical, 343. art. no. 130158. pp. 1-9. ISSN 0925-4005 https://www.sciencedirect.com/science/article/pii/S0925400521007279 10.1016/j.snb.2021.130158 |
| spellingShingle | Mohamed Safian, Nur Azmina Anuar, Afiq Omar, Al-Zuhairi Bawazeer, Tahani M. Alsenany, Nourah Alsoufi, Mohammad S. Supangat, Azzuliani Roslan, Nur Adilah Enhanced sensitivity of zinc phthalocyanine-based microporous humidity sensors by varying size of electrode gaps |
| title | Enhanced sensitivity of zinc phthalocyanine-based microporous humidity sensors by varying size of electrode gaps |
| title_full | Enhanced sensitivity of zinc phthalocyanine-based microporous humidity sensors by varying size of electrode gaps |
| title_fullStr | Enhanced sensitivity of zinc phthalocyanine-based microporous humidity sensors by varying size of electrode gaps |
| title_full_unstemmed | Enhanced sensitivity of zinc phthalocyanine-based microporous humidity sensors by varying size of electrode gaps |
| title_short | Enhanced sensitivity of zinc phthalocyanine-based microporous humidity sensors by varying size of electrode gaps |
| title_sort | enhanced sensitivity of zinc phthalocyanine-based microporous humidity sensors by varying size of electrode gaps |
| url | http://psasir.upm.edu.my/id/eprint/97096/ http://psasir.upm.edu.my/id/eprint/97096/ http://psasir.upm.edu.my/id/eprint/97096/ http://psasir.upm.edu.my/id/eprint/97096/1/ABSTRACT.pdf |