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Formation of a nanorod-assembled TiO2 actinomorphic-flower-like microsphere film via ta doping using a facile solution immersion method for humidity sensing

This study fabricated tantalum (Ta)-doped titanium dioxide with a unique nanorod-assembled actinomorphic-flower-like microsphere structured film. The Ta-doped TiO2actinomorphic-flower-like microsphere (TAFM) was fabricated via the solution immersion method in a Schott bottle with a home-made improvi...

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Main Authors: Mamat, Mohamad Hafiz, Mohamed Zahidi, Musa, A Subki, A Shamsul Rahimi, Abdullah, Mohd Hanapiah, Hassan, Hamizura, Ahmad, Mohd Khairul, Abu Bakar, Suriani, Mohamed, Azmi, Ohtani, Bunsho
Format: Article
Language:English
Published: MDPI 2023
Online Access:http://eprints.utem.edu.my/id/eprint/27460/2/0234802052024105551798.PDF
http://eprints.utem.edu.my/id/eprint/27460/
https://www.mdpi.com/2079-4991/13/2/256
https://doi.org/10.3390/nano13020256
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spelling my.utem.eprints.274602024-07-11T09:38:15Z http://eprints.utem.edu.my/id/eprint/27460/ Formation of a nanorod-assembled TiO2 actinomorphic-flower-like microsphere film via ta doping using a facile solution immersion method for humidity sensing Mamat, Mohamad Hafiz Mohamed Zahidi, Musa A Subki, A Shamsul Rahimi Abdullah, Mohd Hanapiah Hassan, Hamizura Ahmad, Mohd Khairul Abu Bakar, Suriani Mohamed, Azmi Ohtani, Bunsho This study fabricated tantalum (Ta)-doped titanium dioxide with a unique nanorod-assembled actinomorphic-flower-like microsphere structured film. The Ta-doped TiO2actinomorphic-flower-like microsphere (TAFM) was fabricated via the solution immersion method in a Schott bottle with a home-made improvised clamp. The samples were characterised using FESEM, HRTEM, XRD, Raman, XPS, and Hall effect measurements for their structural and electrical properties. Compared to the undoped sample, the rutile-phased TAFM sample had finer nanorods with an average 42 nm diameter assembled to form microsphere-like structures. It also had higher oxygen vacancy sites, electron concentration, and mobility. In addition, a reversed double-beam photoacoustic spectroscopy measurement was performed for TAFM, revealing that the sample had a high electron trap density of up to 2.5 µmolg−1. The TAFM showed promising results when employed as the resistive-type sensing film for a humidity sensor, with the highest sensor response of 53,909% obtained at 3 at.% Ta doping. Adding rGO to 3 at.% TAFM further improved the sensor response to 232,152%. MDPI 2023-01 Article PeerReviewed text en http://eprints.utem.edu.my/id/eprint/27460/2/0234802052024105551798.PDF Mamat, Mohamad Hafiz and Mohamed Zahidi, Musa and A Subki, A Shamsul Rahimi and Abdullah, Mohd Hanapiah and Hassan, Hamizura and Ahmad, Mohd Khairul and Abu Bakar, Suriani and Mohamed, Azmi and Ohtani, Bunsho (2023) Formation of a nanorod-assembled TiO2 actinomorphic-flower-like microsphere film via ta doping using a facile solution immersion method for humidity sensing. Nanomaterials, 13 (2). p. 256. ISSN 2079-4991 https://www.mdpi.com/2079-4991/13/2/256 https://doi.org/10.3390/nano13020256
institution Universiti Teknikal Malaysia Melaka
building UTEM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknikal Malaysia Melaka
content_source UTEM Institutional Repository
url_provider http://eprints.utem.edu.my/
language English
description This study fabricated tantalum (Ta)-doped titanium dioxide with a unique nanorod-assembled actinomorphic-flower-like microsphere structured film. The Ta-doped TiO2actinomorphic-flower-like microsphere (TAFM) was fabricated via the solution immersion method in a Schott bottle with a home-made improvised clamp. The samples were characterised using FESEM, HRTEM, XRD, Raman, XPS, and Hall effect measurements for their structural and electrical properties. Compared to the undoped sample, the rutile-phased TAFM sample had finer nanorods with an average 42 nm diameter assembled to form microsphere-like structures. It also had higher oxygen vacancy sites, electron concentration, and mobility. In addition, a reversed double-beam photoacoustic spectroscopy measurement was performed for TAFM, revealing that the sample had a high electron trap density of up to 2.5 µmolg−1. The TAFM showed promising results when employed as the resistive-type sensing film for a humidity sensor, with the highest sensor response of 53,909% obtained at 3 at.% Ta doping. Adding rGO to 3 at.% TAFM further improved the sensor response to 232,152%.
format Article
author Mamat, Mohamad Hafiz
Mohamed Zahidi, Musa
A Subki, A Shamsul Rahimi
Abdullah, Mohd Hanapiah
Hassan, Hamizura
Ahmad, Mohd Khairul
Abu Bakar, Suriani
Mohamed, Azmi
Ohtani, Bunsho
spellingShingle Mamat, Mohamad Hafiz
Mohamed Zahidi, Musa
A Subki, A Shamsul Rahimi
Abdullah, Mohd Hanapiah
Hassan, Hamizura
Ahmad, Mohd Khairul
Abu Bakar, Suriani
Mohamed, Azmi
Ohtani, Bunsho
Formation of a nanorod-assembled TiO2 actinomorphic-flower-like microsphere film via ta doping using a facile solution immersion method for humidity sensing
author_facet Mamat, Mohamad Hafiz
Mohamed Zahidi, Musa
A Subki, A Shamsul Rahimi
Abdullah, Mohd Hanapiah
Hassan, Hamizura
Ahmad, Mohd Khairul
Abu Bakar, Suriani
Mohamed, Azmi
Ohtani, Bunsho
author_sort Mamat, Mohamad Hafiz
title Formation of a nanorod-assembled TiO2 actinomorphic-flower-like microsphere film via ta doping using a facile solution immersion method for humidity sensing
title_short Formation of a nanorod-assembled TiO2 actinomorphic-flower-like microsphere film via ta doping using a facile solution immersion method for humidity sensing
title_full Formation of a nanorod-assembled TiO2 actinomorphic-flower-like microsphere film via ta doping using a facile solution immersion method for humidity sensing
title_fullStr Formation of a nanorod-assembled TiO2 actinomorphic-flower-like microsphere film via ta doping using a facile solution immersion method for humidity sensing
title_full_unstemmed Formation of a nanorod-assembled TiO2 actinomorphic-flower-like microsphere film via ta doping using a facile solution immersion method for humidity sensing
title_sort formation of a nanorod-assembled tio2 actinomorphic-flower-like microsphere film via ta doping using a facile solution immersion method for humidity sensing
publisher MDPI
publishDate 2023
url http://eprints.utem.edu.my/id/eprint/27460/2/0234802052024105551798.PDF
http://eprints.utem.edu.my/id/eprint/27460/
https://www.mdpi.com/2079-4991/13/2/256
https://doi.org/10.3390/nano13020256
_version_ 1806429014723657728
score 13.211869

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