Physical-Vapor-Deposited Metal Oxide Thin Films for pH Sensing Applications: Last Decade of Research Progress
In the last several decades, metal oxide thin films have attracted significant attention for the development of various existing and emerging technological applications, including pH sensors. The mandate for consistent and precise pH sensing techniques has been increasing across various fields, incl...
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MDPI AG
2023-09-01
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author | Mohammad Nur-E-Alam Devendra Kumar Maurya Boon Kar Yap Armin Rajabi Camellia Doroody Hassan Bin Mohamed Mayeen Uddin Khandaker Mohammad Aminul Islam Sieh Kiong Tiong |
author_facet | Mohammad Nur-E-Alam Devendra Kumar Maurya Boon Kar Yap Armin Rajabi Camellia Doroody Hassan Bin Mohamed Mayeen Uddin Khandaker Mohammad Aminul Islam Sieh Kiong Tiong |
author_sort | Mohammad Nur-E-Alam |
collection | DOAJ |
description | In the last several decades, metal oxide thin films have attracted significant attention for the development of various existing and emerging technological applications, including pH sensors. The mandate for consistent and precise pH sensing techniques has been increasing across various fields, including environmental monitoring, biotechnology, food and agricultural industries, and medical diagnostics. Metal oxide thin films grown using physical vapor deposition (PVD) with precise control over film thickness, composition, and morphology are beneficial for pH sensing applications such as enhancing pH sensitivity and stability, quicker response, repeatability, and compatibility with miniaturization. Various PVD techniques, including sputtering, evaporation, and ion beam deposition, used to fabricate thin films for tailoring materials’ properties for the advanced design and development of high-performing pH sensors, have been explored worldwide by many research groups. In addition, various thin film materials have also been investigated, including metal oxides, nitrides, and nanostructured films, to make very robust pH sensing electrodes with higher pH sensing performance. The development of novel materials and structures has enabled higher sensitivity, improved selectivity, and enhanced durability in harsh pH environments. The last decade has witnessed significant advancements in PVD thin films for pH sensing applications. The combination of precise film deposition techniques, novel materials, and surface functionalization strategies has led to improved pH sensing performance, making PVD thin films a promising choice for future pH sensing technologies. |
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issn | 1424-8220 |
language | English |
last_indexed | 2024-03-10T21:34:18Z |
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spelling | doaj.art-3accd03388994525b42921b307bfd2d62023-11-19T15:04:03ZengMDPI AGSensors1424-82202023-09-012319819410.3390/s23198194Physical-Vapor-Deposited Metal Oxide Thin Films for pH Sensing Applications: Last Decade of Research ProgressMohammad Nur-E-Alam0Devendra Kumar Maurya1Boon Kar Yap2Armin Rajabi3Camellia Doroody4Hassan Bin Mohamed5Mayeen Uddin Khandaker6Mohammad Aminul Islam7Sieh Kiong Tiong8Institute of Sustainable Energy, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang 43000, Selangor, MalaysiaNational Centre for Flexible Electronics, Indian Institute of Technology Kanpur, Kanpur 208016, IndiaInstitute of Sustainable Energy, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang 43000, Selangor, MalaysiaInstitute of Sustainable Energy, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang 43000, Selangor, MalaysiaInstitute of Sustainable Energy, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang 43000, Selangor, MalaysiaInstitute of Sustainable Energy, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang 43000, Selangor, MalaysiaCentre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, Bandar Sunway 47500, Selangor, MalaysiaDepartment of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Selangor, MalaysiaInstitute of Sustainable Energy, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang 43000, Selangor, MalaysiaIn the last several decades, metal oxide thin films have attracted significant attention for the development of various existing and emerging technological applications, including pH sensors. The mandate for consistent and precise pH sensing techniques has been increasing across various fields, including environmental monitoring, biotechnology, food and agricultural industries, and medical diagnostics. Metal oxide thin films grown using physical vapor deposition (PVD) with precise control over film thickness, composition, and morphology are beneficial for pH sensing applications such as enhancing pH sensitivity and stability, quicker response, repeatability, and compatibility with miniaturization. Various PVD techniques, including sputtering, evaporation, and ion beam deposition, used to fabricate thin films for tailoring materials’ properties for the advanced design and development of high-performing pH sensors, have been explored worldwide by many research groups. In addition, various thin film materials have also been investigated, including metal oxides, nitrides, and nanostructured films, to make very robust pH sensing electrodes with higher pH sensing performance. The development of novel materials and structures has enabled higher sensitivity, improved selectivity, and enhanced durability in harsh pH environments. The last decade has witnessed significant advancements in PVD thin films for pH sensing applications. The combination of precise film deposition techniques, novel materials, and surface functionalization strategies has led to improved pH sensing performance, making PVD thin films a promising choice for future pH sensing technologies.https://www.mdpi.com/1424-8220/23/19/8194thin filmmetal oxidepH sensorsensitivity |
spellingShingle | Mohammad Nur-E-Alam Devendra Kumar Maurya Boon Kar Yap Armin Rajabi Camellia Doroody Hassan Bin Mohamed Mayeen Uddin Khandaker Mohammad Aminul Islam Sieh Kiong Tiong Physical-Vapor-Deposited Metal Oxide Thin Films for pH Sensing Applications: Last Decade of Research Progress Sensors thin film metal oxide pH sensor sensitivity |
title | Physical-Vapor-Deposited Metal Oxide Thin Films for pH Sensing Applications: Last Decade of Research Progress |
title_full | Physical-Vapor-Deposited Metal Oxide Thin Films for pH Sensing Applications: Last Decade of Research Progress |
title_fullStr | Physical-Vapor-Deposited Metal Oxide Thin Films for pH Sensing Applications: Last Decade of Research Progress |
title_full_unstemmed | Physical-Vapor-Deposited Metal Oxide Thin Films for pH Sensing Applications: Last Decade of Research Progress |
title_short | Physical-Vapor-Deposited Metal Oxide Thin Films for pH Sensing Applications: Last Decade of Research Progress |
title_sort | physical vapor deposited metal oxide thin films for ph sensing applications last decade of research progress |
topic | thin film metal oxide pH sensor sensitivity |
url | https://www.mdpi.com/1424-8220/23/19/8194 |
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