Research Topic

Transition Metal Oxide Thin Films for Emerging Electronic, Ionic, and Iontronic Devices

About this Research Topic

This Research Topic has been realized with the collaboration of Prof. Panagiotis Bousoulas of the National Technical University of Athens, Greece.

Transition metal oxides (TMOs) are technologically of great importance for the development of functional materials and devices, with their applications spreading out in almost every field such as solar cells, catalysis, electrochemical energy storage, chromogenics, optoelectronics, and sensors. TMOs are found to possess versatile physical and chemical properties and still lead the discoveries of emerging properties after decades of exploration. With advances in thin film fabrication techniques, TMO thin films can be precisely controlled and modulated for high-performance devices in terms of their thickness, patterns, electrical and chemical properties. TMO thin films, for instance, TiO2, WO3, MoO3, Co3O4, and V2O5, have greatly promoted the development of high-performance solar cells, chromogenic devices, transistors, photodetectors, and gas sensors. The rise of iontronics concept has opened a new platform for TMO thin films to exhibit their versatility. The typical iontronic devices, such as memristors, electrolyte-gated transistors, and electrochromic photodetectors, have pushed the development of TMO thin films to a higher level in virtue of their excellent ion activities and controllable defects at the nanoscale.

The development of TMO devices faces obstacles not only from performance improvement, but also from fabrication techniques for practical and commercial applications. Many opportunities are available in the development of original and novel devices especially at the nanoscale. The main goal of this Research Topic is to report on the latest progress of TMO thin films for emerging electronic, ionic, and iontronic devices, and to exhibit advanced fabrication methods of TMO thin films and modulation of their exotic electronic and ionic properties. We expect to display the advantages of TMO thin films for nanodevices to a wider scientific community and further promote the development of TMO thin films and their applications.

The Research Topic aims to attract manuscripts on TMO thin films with focus on their advanced fabrication techniques, modulation of exotic properties, or novel applications in the field of electronics, ionics, and iontronics. Both Original Research and Review articles are welcome. The scope of the Research Topic includes, but not limited to, the following aspects:

• TMO thin film deposition techniques, such as chemical vapor deposition, atomic layer deposition, and physical vapor deposition.
• TMO thin film synthesis and assembly techniques, such as exfoliation, sol-gel, and ink-jet printing.
• Electronic and ionic properties of TMO thin films, such as conductivity, bandgap, and ion mobility.
• Electronic, ionic, and iontronic devices based on TMO thin films such as photodetectors, electrochromic devices, memristors, and electrolyte-gated transistors.


Keywords: transition metal oxide, oxide thin film, electronics, ionics, iontronics


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

This Research Topic has been realized with the collaboration of Prof. Panagiotis Bousoulas of the National Technical University of Athens, Greece.

Transition metal oxides (TMOs) are technologically of great importance for the development of functional materials and devices, with their applications spreading out in almost every field such as solar cells, catalysis, electrochemical energy storage, chromogenics, optoelectronics, and sensors. TMOs are found to possess versatile physical and chemical properties and still lead the discoveries of emerging properties after decades of exploration. With advances in thin film fabrication techniques, TMO thin films can be precisely controlled and modulated for high-performance devices in terms of their thickness, patterns, electrical and chemical properties. TMO thin films, for instance, TiO2, WO3, MoO3, Co3O4, and V2O5, have greatly promoted the development of high-performance solar cells, chromogenic devices, transistors, photodetectors, and gas sensors. The rise of iontronics concept has opened a new platform for TMO thin films to exhibit their versatility. The typical iontronic devices, such as memristors, electrolyte-gated transistors, and electrochromic photodetectors, have pushed the development of TMO thin films to a higher level in virtue of their excellent ion activities and controllable defects at the nanoscale.

The development of TMO devices faces obstacles not only from performance improvement, but also from fabrication techniques for practical and commercial applications. Many opportunities are available in the development of original and novel devices especially at the nanoscale. The main goal of this Research Topic is to report on the latest progress of TMO thin films for emerging electronic, ionic, and iontronic devices, and to exhibit advanced fabrication methods of TMO thin films and modulation of their exotic electronic and ionic properties. We expect to display the advantages of TMO thin films for nanodevices to a wider scientific community and further promote the development of TMO thin films and their applications.

The Research Topic aims to attract manuscripts on TMO thin films with focus on their advanced fabrication techniques, modulation of exotic properties, or novel applications in the field of electronics, ionics, and iontronics. Both Original Research and Review articles are welcome. The scope of the Research Topic includes, but not limited to, the following aspects:

• TMO thin film deposition techniques, such as chemical vapor deposition, atomic layer deposition, and physical vapor deposition.
• TMO thin film synthesis and assembly techniques, such as exfoliation, sol-gel, and ink-jet printing.
• Electronic and ionic properties of TMO thin films, such as conductivity, bandgap, and ion mobility.
• Electronic, ionic, and iontronic devices based on TMO thin films such as photodetectors, electrochromic devices, memristors, and electrolyte-gated transistors.


Keywords: transition metal oxide, oxide thin film, electronics, ionics, iontronics


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

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Submission Deadlines

17 January 2021 Manuscript
14 February 2021 Manuscript Extension

Participating Journals

Manuscripts can be submitted to this Research Topic via the following journals:

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Topic Editors

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Submission Deadlines

17 January 2021 Manuscript
14 February 2021 Manuscript Extension

Participating Journals

Manuscripts can be submitted to this Research Topic via the following journals:

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