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Coupling between Ion Drift and Kinetics of Electronic Current Transients in MAPbBr(3) Single Crystals
[Image: see text] The optoelectronic properties of halide perovskite materials have fostered their utilization in many applications. Unravelling their working mechanisms remains challenging because of their mixed ionic–electronic conductive nature. By registering, with high reproducibility, the long...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8922277/ https://www.ncbi.nlm.nih.gov/pubmed/35310458 http://dx.doi.org/10.1021/acsenergylett.1c02578 |
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author | García-Batlle, Marisé Mayén Guillén, Javier Chapran, Marian Baussens, Oriane Zaccaro, Julien Verilhac, Jean-Marie Gros-Daillon, Eric Guerrero, Antonio Almora, Osbel Garcia-Belmonte, Germà |
author_facet | García-Batlle, Marisé Mayén Guillén, Javier Chapran, Marian Baussens, Oriane Zaccaro, Julien Verilhac, Jean-Marie Gros-Daillon, Eric Guerrero, Antonio Almora, Osbel Garcia-Belmonte, Germà |
author_sort | García-Batlle, Marisé |
collection | PubMed |
description | [Image: see text] The optoelectronic properties of halide perovskite materials have fostered their utilization in many applications. Unravelling their working mechanisms remains challenging because of their mixed ionic–electronic conductive nature. By registering, with high reproducibility, the long-time current transients of a set of single-crystal methylammonium lead tribromide samples, the ion migration process was proved. Sample biasing experiments (ionic drift), with characteristic times exhibiting voltage dependence as ∝ V(–3/2), is interpreted with an ionic migration model obeying a ballistic-like voltage-dependent mobility (BVM) regime of space-charge-limited current. Ionic kinetics effectively modify the long-time electronic current, while the steady-state electronic currents’ behavior is nearly ohmic. Using the ionic dynamic doping model (IDD) for the recovering current at zero bias (ion diffusion), the ionic mobility is estimated to be ∼10(–6) cm(2) V(–1) s(–1). Our findings suggest that ionic currents are negligible in comparison to the electronic currents; however, they influence them via changes in the charge density profile. |
format | Online Article Text |
id | pubmed-8922277 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-89222772022-03-16 Coupling between Ion Drift and Kinetics of Electronic Current Transients in MAPbBr(3) Single Crystals García-Batlle, Marisé Mayén Guillén, Javier Chapran, Marian Baussens, Oriane Zaccaro, Julien Verilhac, Jean-Marie Gros-Daillon, Eric Guerrero, Antonio Almora, Osbel Garcia-Belmonte, Germà ACS Energy Lett [Image: see text] The optoelectronic properties of halide perovskite materials have fostered their utilization in many applications. Unravelling their working mechanisms remains challenging because of their mixed ionic–electronic conductive nature. By registering, with high reproducibility, the long-time current transients of a set of single-crystal methylammonium lead tribromide samples, the ion migration process was proved. Sample biasing experiments (ionic drift), with characteristic times exhibiting voltage dependence as ∝ V(–3/2), is interpreted with an ionic migration model obeying a ballistic-like voltage-dependent mobility (BVM) regime of space-charge-limited current. Ionic kinetics effectively modify the long-time electronic current, while the steady-state electronic currents’ behavior is nearly ohmic. Using the ionic dynamic doping model (IDD) for the recovering current at zero bias (ion diffusion), the ionic mobility is estimated to be ∼10(–6) cm(2) V(–1) s(–1). Our findings suggest that ionic currents are negligible in comparison to the electronic currents; however, they influence them via changes in the charge density profile. American Chemical Society 2022-02-11 2022-03-11 /pmc/articles/PMC8922277/ /pubmed/35310458 http://dx.doi.org/10.1021/acsenergylett.1c02578 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | García-Batlle, Marisé Mayén Guillén, Javier Chapran, Marian Baussens, Oriane Zaccaro, Julien Verilhac, Jean-Marie Gros-Daillon, Eric Guerrero, Antonio Almora, Osbel Garcia-Belmonte, Germà Coupling between Ion Drift and Kinetics of Electronic Current Transients in MAPbBr(3) Single Crystals |
title | Coupling between Ion Drift and Kinetics of Electronic
Current Transients in MAPbBr(3) Single Crystals |
title_full | Coupling between Ion Drift and Kinetics of Electronic
Current Transients in MAPbBr(3) Single Crystals |
title_fullStr | Coupling between Ion Drift and Kinetics of Electronic
Current Transients in MAPbBr(3) Single Crystals |
title_full_unstemmed | Coupling between Ion Drift and Kinetics of Electronic
Current Transients in MAPbBr(3) Single Crystals |
title_short | Coupling between Ion Drift and Kinetics of Electronic
Current Transients in MAPbBr(3) Single Crystals |
title_sort | coupling between ion drift and kinetics of electronic
current transients in mapbbr(3) single crystals |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8922277/ https://www.ncbi.nlm.nih.gov/pubmed/35310458 http://dx.doi.org/10.1021/acsenergylett.1c02578 |
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