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Light intensity-induced photocurrent switching effect

A better control over processes responsible for the photocurrent generation in semiconductors and nanocomposites is essential in the fabrication of photovoltaic devices, efficient photocatalysts and optoelectronic elements. Therefore, new approaches towards photochemical properties tuning are intens...

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Autores principales: Podborska, Agnieszka, Suchecki, Maciej, Mech, Krzysztof, Marzec, Mateusz, Pilarczyk, Kacper, Szaciłowski, Konrad
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7016128/
https://www.ncbi.nlm.nih.gov/pubmed/32051416
http://dx.doi.org/10.1038/s41467-020-14675-5
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author Podborska, Agnieszka
Suchecki, Maciej
Mech, Krzysztof
Marzec, Mateusz
Pilarczyk, Kacper
Szaciłowski, Konrad
author_facet Podborska, Agnieszka
Suchecki, Maciej
Mech, Krzysztof
Marzec, Mateusz
Pilarczyk, Kacper
Szaciłowski, Konrad
author_sort Podborska, Agnieszka
collection PubMed
description A better control over processes responsible for the photocurrent generation in semiconductors and nanocomposites is essential in the fabrication of photovoltaic devices, efficient photocatalysts and optoelectronic elements. Therefore, new approaches towards photochemical properties tuning are intensively searched for. Among numerous parameters, the photocurrent polarity is of great importance to the overall performance of a device. Usually, the polarity is controlled through an alignment of electronic states/bands, tailoring of applied potential or suitable selection of incident light wavelengths. In most scenarios though, the influence of light intensity is somehow neglected and either some arbitrarily chosen, natural conditions are mimicked or this parameter is varied only in a narrow range. Here we present a ternary nanocomposite in which the persistent photocurrent polarity switching is achieved through changes in the light intensity. We also present arguments suggesting this behaviour is of a general character and should be considered also in other photochemical systems.
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spelling pubmed-70161282020-02-20 Light intensity-induced photocurrent switching effect Podborska, Agnieszka Suchecki, Maciej Mech, Krzysztof Marzec, Mateusz Pilarczyk, Kacper Szaciłowski, Konrad Nat Commun Article A better control over processes responsible for the photocurrent generation in semiconductors and nanocomposites is essential in the fabrication of photovoltaic devices, efficient photocatalysts and optoelectronic elements. Therefore, new approaches towards photochemical properties tuning are intensively searched for. Among numerous parameters, the photocurrent polarity is of great importance to the overall performance of a device. Usually, the polarity is controlled through an alignment of electronic states/bands, tailoring of applied potential or suitable selection of incident light wavelengths. In most scenarios though, the influence of light intensity is somehow neglected and either some arbitrarily chosen, natural conditions are mimicked or this parameter is varied only in a narrow range. Here we present a ternary nanocomposite in which the persistent photocurrent polarity switching is achieved through changes in the light intensity. We also present arguments suggesting this behaviour is of a general character and should be considered also in other photochemical systems. Nature Publishing Group UK 2020-02-12 /pmc/articles/PMC7016128/ /pubmed/32051416 http://dx.doi.org/10.1038/s41467-020-14675-5 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Podborska, Agnieszka
Suchecki, Maciej
Mech, Krzysztof
Marzec, Mateusz
Pilarczyk, Kacper
Szaciłowski, Konrad
Light intensity-induced photocurrent switching effect
title Light intensity-induced photocurrent switching effect
title_full Light intensity-induced photocurrent switching effect
title_fullStr Light intensity-induced photocurrent switching effect
title_full_unstemmed Light intensity-induced photocurrent switching effect
title_short Light intensity-induced photocurrent switching effect
title_sort light intensity-induced photocurrent switching effect
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7016128/
https://www.ncbi.nlm.nih.gov/pubmed/32051416
http://dx.doi.org/10.1038/s41467-020-14675-5
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