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Origin and Mechanism of Piezoelectric and Photovoltaic Effects in (111) Polar Orientated NiO Films

Based on the current piezoelectric theory, NiO with the centrosymmetric structure is not piezoelectric. However, herein, this study shows the first observation of piezoelectric generation, rectifyingand bulk photovoltaic behaviors in NiO films with [111] orientation and the change in NiO crystal str...

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Autores principales: Fan, Nana, Wang, Yingfei, Liu, Bin, Yang, Heqing, Liu, Shengzhong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10646231/
https://www.ncbi.nlm.nih.gov/pubmed/37751305
http://dx.doi.org/10.1002/advs.202304637
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author Fan, Nana
Wang, Yingfei
Liu, Bin
Yang, Heqing
Liu, Shengzhong
author_facet Fan, Nana
Wang, Yingfei
Liu, Bin
Yang, Heqing
Liu, Shengzhong
author_sort Fan, Nana
collection PubMed
description Based on the current piezoelectric theory, NiO with the centrosymmetric structure is not piezoelectric. However, herein, this study shows the first observation of piezoelectric generation, rectifyingand bulk photovoltaic behaviors in NiO films with [111] orientation and the change in NiO crystal structure in piezoelectric process. The piezoelectric generation, rectifying, and bulk photovoltaic performances are enhanced by increasing (111) orientation, and attenuated and eliminated by applying a persistent stress on the NiO film. The NiO [111] is polar direction, and thus a spontaneous electric field (E(S)) is in the NiO film with [111] orientation. The existence of Es in (111) oriented NiO film is found to be the physical basis of the piezoelectric generators and photovoltaic and rectifying effects. Thus, NiO piezoelectric, rectifying, and bulk photovoltaic mechanism are presented at the atomic level. The mechanism may rewrite the current piezoelectric theory, and establish a unified theory of polar structure with wide implications. The polar‐orientated films can be used to fabricate piezoelectric generators and other optoelectronic devices with high performances.
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spelling pubmed-106462312023-09-26 Origin and Mechanism of Piezoelectric and Photovoltaic Effects in (111) Polar Orientated NiO Films Fan, Nana Wang, Yingfei Liu, Bin Yang, Heqing Liu, Shengzhong Adv Sci (Weinh) Research Articles Based on the current piezoelectric theory, NiO with the centrosymmetric structure is not piezoelectric. However, herein, this study shows the first observation of piezoelectric generation, rectifyingand bulk photovoltaic behaviors in NiO films with [111] orientation and the change in NiO crystal structure in piezoelectric process. The piezoelectric generation, rectifying, and bulk photovoltaic performances are enhanced by increasing (111) orientation, and attenuated and eliminated by applying a persistent stress on the NiO film. The NiO [111] is polar direction, and thus a spontaneous electric field (E(S)) is in the NiO film with [111] orientation. The existence of Es in (111) oriented NiO film is found to be the physical basis of the piezoelectric generators and photovoltaic and rectifying effects. Thus, NiO piezoelectric, rectifying, and bulk photovoltaic mechanism are presented at the atomic level. The mechanism may rewrite the current piezoelectric theory, and establish a unified theory of polar structure with wide implications. The polar‐orientated films can be used to fabricate piezoelectric generators and other optoelectronic devices with high performances. John Wiley and Sons Inc. 2023-09-26 /pmc/articles/PMC10646231/ /pubmed/37751305 http://dx.doi.org/10.1002/advs.202304637 Text en © 2023 The Authors. Advanced Science published by Wiley‐VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Fan, Nana
Wang, Yingfei
Liu, Bin
Yang, Heqing
Liu, Shengzhong
Origin and Mechanism of Piezoelectric and Photovoltaic Effects in (111) Polar Orientated NiO Films
title Origin and Mechanism of Piezoelectric and Photovoltaic Effects in (111) Polar Orientated NiO Films
title_full Origin and Mechanism of Piezoelectric and Photovoltaic Effects in (111) Polar Orientated NiO Films
title_fullStr Origin and Mechanism of Piezoelectric and Photovoltaic Effects in (111) Polar Orientated NiO Films
title_full_unstemmed Origin and Mechanism of Piezoelectric and Photovoltaic Effects in (111) Polar Orientated NiO Films
title_short Origin and Mechanism of Piezoelectric and Photovoltaic Effects in (111) Polar Orientated NiO Films
title_sort origin and mechanism of piezoelectric and photovoltaic effects in (111) polar orientated nio films
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10646231/
https://www.ncbi.nlm.nih.gov/pubmed/37751305
http://dx.doi.org/10.1002/advs.202304637
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