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Edge-on orientation of thermally evaporated metal phthalocyanines thin films for humidity sensing application

Thermally evaporated metal phthalocyanines (MPcs) were successfully fabricated for humidity-sensing applications. Comparative molecular analysis of three different MPcs sensing layers, namely MnPc, VOPc, and VTTBNc, using the powerful tool of grazing-incidence wide-angle and small-angle X-ray scatte...

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Main Authors: Natashah, Fadlan Arif, Hisamuddin, Syaza Nafisah, Coffey, Aidan H., Zhu, Chenhui, Bawazeer, Tahani M., Alsoufi, Mohammad S., Roslan, Nur Adilah, Supangat, Azzuliani
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Published: Springer 2024
Online Access:http://psasir.upm.edu.my/id/eprint/115018/
https://link.springer.com/article/10.1007/s10854-024-12280-6?error=cookies_not_supported&code=69c8594f-a729-4876-a642-00a6d1b97ffa
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spelling my.upm.eprints.1150182025-02-17T04:35:34Z http://psasir.upm.edu.my/id/eprint/115018/ Edge-on orientation of thermally evaporated metal phthalocyanines thin films for humidity sensing application Natashah, Fadlan Arif Hisamuddin, Syaza Nafisah Coffey, Aidan H. Zhu, Chenhui Bawazeer, Tahani M. Alsoufi, Mohammad S. Roslan, Nur Adilah Supangat, Azzuliani Thermally evaporated metal phthalocyanines (MPcs) were successfully fabricated for humidity-sensing applications. Comparative molecular analysis of three different MPcs sensing layers, namely MnPc, VOPc, and VTTBNc, using the powerful tool of grazing-incidence wide-angle and small-angle X-ray scattering (GIWAXS/GISAXS), were made to find the correlation between molecule orientation of the sensing layers and their humidity sensing performances. In this study, planar-configurated capacitive Al/MnPc/Al humidity sensor produced the highest sensitivity (17.74 nF/%RH) relative to Al/VTTBNc/Al (11.50 nF/%RH) and Al/VOPc/Al (11.20 nF/%RH) due to its crystallographic orientation being more vertical than the VTTBNc and VOPc counterparts, as confirmed by GIWAXS and GISAXS analysis. Similarly, the MnPc-based sensor produced the fastest response and recovery time of 3 s and 2 s, respectively. Meanwhile, VTTBNc yielded the smallest hysteresis gap of 0.29%. The quantitative and qualitative information, such as crystal coherence length, grain size, and lattice spacing obtained from the GIWAXS and GISAXS, have been studied to explain the humidity sensors’ sensitivity, hysteresis, and transient response. The crystallographic orientation of the active sensing layer significantly influences the humidity sensing performance. Springer 2024-03-04 Article PeerReviewed Natashah, Fadlan Arif and Hisamuddin, Syaza Nafisah and Coffey, Aidan H. and Zhu, Chenhui and Bawazeer, Tahani M. and Alsoufi, Mohammad S. and Roslan, Nur Adilah and Supangat, Azzuliani (2024) Edge-on orientation of thermally evaporated metal phthalocyanines thin films for humidity sensing application. Journal of Materials Science: Materials in Electronics, 35. art. no. 512. ISSN 0957-4522; eISSN: 1573-482X https://link.springer.com/article/10.1007/s10854-024-12280-6?error=cookies_not_supported&code=69c8594f-a729-4876-a642-00a6d1b97ffa 10.1007/s10854-024-12280-6
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description Thermally evaporated metal phthalocyanines (MPcs) were successfully fabricated for humidity-sensing applications. Comparative molecular analysis of three different MPcs sensing layers, namely MnPc, VOPc, and VTTBNc, using the powerful tool of grazing-incidence wide-angle and small-angle X-ray scattering (GIWAXS/GISAXS), were made to find the correlation between molecule orientation of the sensing layers and their humidity sensing performances. In this study, planar-configurated capacitive Al/MnPc/Al humidity sensor produced the highest sensitivity (17.74 nF/%RH) relative to Al/VTTBNc/Al (11.50 nF/%RH) and Al/VOPc/Al (11.20 nF/%RH) due to its crystallographic orientation being more vertical than the VTTBNc and VOPc counterparts, as confirmed by GIWAXS and GISAXS analysis. Similarly, the MnPc-based sensor produced the fastest response and recovery time of 3 s and 2 s, respectively. Meanwhile, VTTBNc yielded the smallest hysteresis gap of 0.29%. The quantitative and qualitative information, such as crystal coherence length, grain size, and lattice spacing obtained from the GIWAXS and GISAXS, have been studied to explain the humidity sensors’ sensitivity, hysteresis, and transient response. The crystallographic orientation of the active sensing layer significantly influences the humidity sensing performance.
format Article
author Natashah, Fadlan Arif
Hisamuddin, Syaza Nafisah
Coffey, Aidan H.
Zhu, Chenhui
Bawazeer, Tahani M.
Alsoufi, Mohammad S.
Roslan, Nur Adilah
Supangat, Azzuliani
spellingShingle Natashah, Fadlan Arif
Hisamuddin, Syaza Nafisah
Coffey, Aidan H.
Zhu, Chenhui
Bawazeer, Tahani M.
Alsoufi, Mohammad S.
Roslan, Nur Adilah
Supangat, Azzuliani
Edge-on orientation of thermally evaporated metal phthalocyanines thin films for humidity sensing application
author_facet Natashah, Fadlan Arif
Hisamuddin, Syaza Nafisah
Coffey, Aidan H.
Zhu, Chenhui
Bawazeer, Tahani M.
Alsoufi, Mohammad S.
Roslan, Nur Adilah
Supangat, Azzuliani
author_sort Natashah, Fadlan Arif
title Edge-on orientation of thermally evaporated metal phthalocyanines thin films for humidity sensing application
title_short Edge-on orientation of thermally evaporated metal phthalocyanines thin films for humidity sensing application
title_full Edge-on orientation of thermally evaporated metal phthalocyanines thin films for humidity sensing application
title_fullStr Edge-on orientation of thermally evaporated metal phthalocyanines thin films for humidity sensing application
title_full_unstemmed Edge-on orientation of thermally evaporated metal phthalocyanines thin films for humidity sensing application
title_sort edge-on orientation of thermally evaporated metal phthalocyanines thin films for humidity sensing application
publisher Springer
publishDate 2024
url http://psasir.upm.edu.my/id/eprint/115018/
https://link.springer.com/article/10.1007/s10854-024-12280-6?error=cookies_not_supported&code=69c8594f-a729-4876-a642-00a6d1b97ffa
_version_ 1825162415656927232
score 13.2401285

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