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All-inorganic perovskite quantum dot light-emitting memories

Field-induced ionic motions in all-inorganic CsPbBr(3) perovskite quantum dots (QDs) strongly dictate not only their electro-optical characteristics but also the ultimate optoelectronic device performance. Here, we show that the functionality of a single Ag/CsPbBr(3)/ITO device can be actively switc...

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Autores principales: Yen, Meng-Cheng, Lee, Chia-Jung, Liu, Kang-Hsiang, Peng, Yi, Leng, Junfu, Chang, Tzu-Hsuan, Chang, Chun-Chieh, Tamada, Kaoru, Lee, Ya-Ju
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8298456/
https://www.ncbi.nlm.nih.gov/pubmed/34294699
http://dx.doi.org/10.1038/s41467-021-24762-w
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author Yen, Meng-Cheng
Lee, Chia-Jung
Liu, Kang-Hsiang
Peng, Yi
Leng, Junfu
Chang, Tzu-Hsuan
Chang, Chun-Chieh
Tamada, Kaoru
Lee, Ya-Ju
author_facet Yen, Meng-Cheng
Lee, Chia-Jung
Liu, Kang-Hsiang
Peng, Yi
Leng, Junfu
Chang, Tzu-Hsuan
Chang, Chun-Chieh
Tamada, Kaoru
Lee, Ya-Ju
author_sort Yen, Meng-Cheng
collection PubMed
description Field-induced ionic motions in all-inorganic CsPbBr(3) perovskite quantum dots (QDs) strongly dictate not only their electro-optical characteristics but also the ultimate optoelectronic device performance. Here, we show that the functionality of a single Ag/CsPbBr(3)/ITO device can be actively switched on a sub-millisecond scale from a resistive random-access memory (RRAM) to a light-emitting electrochemical cell (LEC), or vice versa, by simply modulating its bias polarity. We then realize for the first time a fast, all-perovskite light-emitting memory (LEM) operating at 5 kHz by pairing such two identical devices in series, in which one functions as an RRAM to electrically read the encoded data while the other simultaneously as an LEC for a parallel, non-contact optical reading. We further show that the digital status of the LEM can be perceived in real time from its emission color. Our work opens up a completely new horizon for more advanced all-inorganic perovskite optoelectronic technologies.
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spelling pubmed-82984562021-08-12 All-inorganic perovskite quantum dot light-emitting memories Yen, Meng-Cheng Lee, Chia-Jung Liu, Kang-Hsiang Peng, Yi Leng, Junfu Chang, Tzu-Hsuan Chang, Chun-Chieh Tamada, Kaoru Lee, Ya-Ju Nat Commun Article Field-induced ionic motions in all-inorganic CsPbBr(3) perovskite quantum dots (QDs) strongly dictate not only their electro-optical characteristics but also the ultimate optoelectronic device performance. Here, we show that the functionality of a single Ag/CsPbBr(3)/ITO device can be actively switched on a sub-millisecond scale from a resistive random-access memory (RRAM) to a light-emitting electrochemical cell (LEC), or vice versa, by simply modulating its bias polarity. We then realize for the first time a fast, all-perovskite light-emitting memory (LEM) operating at 5 kHz by pairing such two identical devices in series, in which one functions as an RRAM to electrically read the encoded data while the other simultaneously as an LEC for a parallel, non-contact optical reading. We further show that the digital status of the LEM can be perceived in real time from its emission color. Our work opens up a completely new horizon for more advanced all-inorganic perovskite optoelectronic technologies. Nature Publishing Group UK 2021-07-22 /pmc/articles/PMC8298456/ /pubmed/34294699 http://dx.doi.org/10.1038/s41467-021-24762-w Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Yen, Meng-Cheng
Lee, Chia-Jung
Liu, Kang-Hsiang
Peng, Yi
Leng, Junfu
Chang, Tzu-Hsuan
Chang, Chun-Chieh
Tamada, Kaoru
Lee, Ya-Ju
All-inorganic perovskite quantum dot light-emitting memories
title All-inorganic perovskite quantum dot light-emitting memories
title_full All-inorganic perovskite quantum dot light-emitting memories
title_fullStr All-inorganic perovskite quantum dot light-emitting memories
title_full_unstemmed All-inorganic perovskite quantum dot light-emitting memories
title_short All-inorganic perovskite quantum dot light-emitting memories
title_sort all-inorganic perovskite quantum dot light-emitting memories
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8298456/
https://www.ncbi.nlm.nih.gov/pubmed/34294699
http://dx.doi.org/10.1038/s41467-021-24762-w
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