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Robust electric-field tunable opto-electrical behavior in Pt-NiO-Pt planar structures
Capacitor-like metal-NiO-metal structures have attracted large interest in non-volatile memory applications based on electric field control of resistance, known as resistive switching (RS). Formation of conducting nanofilaments by the application of an electric field (electroformation) is considered...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4904798/ https://www.ncbi.nlm.nih.gov/pubmed/27294614 http://dx.doi.org/10.1038/srep28007 |
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author | Rebello, A. Adeyeye, A. O. |
author_facet | Rebello, A. Adeyeye, A. O. |
author_sort | Rebello, A. |
collection | PubMed |
description | Capacitor-like metal-NiO-metal structures have attracted large interest in non-volatile memory applications based on electric field control of resistance, known as resistive switching (RS). Formation of conducting nanofilaments by the application of an electric field (electroformation) is considered an important pre-requisite for RS. Besides RS, due to the wide band gap and p-type semiconducting nature, NiO has been used to fabricate heterojunctions for photodetector applications. However, very little is known about the electrical and opto-electrical properties of NiO films in planar structure. Here, we demonstrate intriguing photoresponse and electrical behavior in electroformed Pt-NiO-Pt planar structures. While the pristine devices show ohmic electrical behavior and negligible photoresponse, the electroformed devices exhibit a nonlinear rectification behavior and a remarkable photoresponse at low voltage biases. More interestingly, the devices show a dramatic change of sign of rectification under light illumination at higher voltage biases. A polarity dependent and robust gain phenomenon is demonstrated in these devices. The large sensitivity, fast response, simple design and ease of preparation of these planar structures make them attractive for integration with current circuit technologies and various novel opto-electrical applications. |
format | Online Article Text |
id | pubmed-4904798 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-49047982016-06-14 Robust electric-field tunable opto-electrical behavior in Pt-NiO-Pt planar structures Rebello, A. Adeyeye, A. O. Sci Rep Article Capacitor-like metal-NiO-metal structures have attracted large interest in non-volatile memory applications based on electric field control of resistance, known as resistive switching (RS). Formation of conducting nanofilaments by the application of an electric field (electroformation) is considered an important pre-requisite for RS. Besides RS, due to the wide band gap and p-type semiconducting nature, NiO has been used to fabricate heterojunctions for photodetector applications. However, very little is known about the electrical and opto-electrical properties of NiO films in planar structure. Here, we demonstrate intriguing photoresponse and electrical behavior in electroformed Pt-NiO-Pt planar structures. While the pristine devices show ohmic electrical behavior and negligible photoresponse, the electroformed devices exhibit a nonlinear rectification behavior and a remarkable photoresponse at low voltage biases. More interestingly, the devices show a dramatic change of sign of rectification under light illumination at higher voltage biases. A polarity dependent and robust gain phenomenon is demonstrated in these devices. The large sensitivity, fast response, simple design and ease of preparation of these planar structures make them attractive for integration with current circuit technologies and various novel opto-electrical applications. Nature Publishing Group 2016-06-13 /pmc/articles/PMC4904798/ /pubmed/27294614 http://dx.doi.org/10.1038/srep28007 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Rebello, A. Adeyeye, A. O. Robust electric-field tunable opto-electrical behavior in Pt-NiO-Pt planar structures |
title | Robust electric-field tunable opto-electrical behavior in Pt-NiO-Pt planar structures |
title_full | Robust electric-field tunable opto-electrical behavior in Pt-NiO-Pt planar structures |
title_fullStr | Robust electric-field tunable opto-electrical behavior in Pt-NiO-Pt planar structures |
title_full_unstemmed | Robust electric-field tunable opto-electrical behavior in Pt-NiO-Pt planar structures |
title_short | Robust electric-field tunable opto-electrical behavior in Pt-NiO-Pt planar structures |
title_sort | robust electric-field tunable opto-electrical behavior in pt-nio-pt planar structures |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4904798/ https://www.ncbi.nlm.nih.gov/pubmed/27294614 http://dx.doi.org/10.1038/srep28007 |
work_keys_str_mv | AT rebelloa robustelectricfieldtunableoptoelectricalbehaviorinptnioptplanarstructures AT adeyeyeao robustelectricfieldtunableoptoelectricalbehaviorinptnioptplanarstructures |