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Exploring the Structural Competition between the Black and the Yellow Phase of CsPbI(3)

The realization of stable inorganic perovskites is crucial to enable low-cost solution-processed photovoltaics. However, the main candidate material, CsPbI(3), suffers from a spontaneous phase transition at room temperature towards a photo-inactive orthorhombic δ-phase (yellow phase). Here we used t...

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Autores principales: Deretzis, Ioannis, Bongiorno, Corrado, Mannino, Giovanni, Smecca, Emanuele, Sanzaro, Salvatore, Valastro, Salvatore, Fisicaro, Giuseppe, La Magna, Antonino, Alberti, Alessandra
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8152980/
https://www.ncbi.nlm.nih.gov/pubmed/34068185
http://dx.doi.org/10.3390/nano11051282
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author Deretzis, Ioannis
Bongiorno, Corrado
Mannino, Giovanni
Smecca, Emanuele
Sanzaro, Salvatore
Valastro, Salvatore
Fisicaro, Giuseppe
La Magna, Antonino
Alberti, Alessandra
author_facet Deretzis, Ioannis
Bongiorno, Corrado
Mannino, Giovanni
Smecca, Emanuele
Sanzaro, Salvatore
Valastro, Salvatore
Fisicaro, Giuseppe
La Magna, Antonino
Alberti, Alessandra
author_sort Deretzis, Ioannis
collection PubMed
description The realization of stable inorganic perovskites is crucial to enable low-cost solution-processed photovoltaics. However, the main candidate material, CsPbI(3), suffers from a spontaneous phase transition at room temperature towards a photo-inactive orthorhombic δ-phase (yellow phase). Here we used theoretical and experimental methods to study the structural and electronic features that determine the stability of the CsPbI(3) perovskite. We argued that the two physical characteristics that favor the black perovskite phase at low temperatures are the strong spatial confinement in nanocrystalline structures and the level of electron doping in the material. Within this context, we discussed practical procedures for the realization of long-lasting inorganic lead halide perovskites.
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spelling pubmed-81529802021-05-27 Exploring the Structural Competition between the Black and the Yellow Phase of CsPbI(3) Deretzis, Ioannis Bongiorno, Corrado Mannino, Giovanni Smecca, Emanuele Sanzaro, Salvatore Valastro, Salvatore Fisicaro, Giuseppe La Magna, Antonino Alberti, Alessandra Nanomaterials (Basel) Article The realization of stable inorganic perovskites is crucial to enable low-cost solution-processed photovoltaics. However, the main candidate material, CsPbI(3), suffers from a spontaneous phase transition at room temperature towards a photo-inactive orthorhombic δ-phase (yellow phase). Here we used theoretical and experimental methods to study the structural and electronic features that determine the stability of the CsPbI(3) perovskite. We argued that the two physical characteristics that favor the black perovskite phase at low temperatures are the strong spatial confinement in nanocrystalline structures and the level of electron doping in the material. Within this context, we discussed practical procedures for the realization of long-lasting inorganic lead halide perovskites. MDPI 2021-05-13 /pmc/articles/PMC8152980/ /pubmed/34068185 http://dx.doi.org/10.3390/nano11051282 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Deretzis, Ioannis
Bongiorno, Corrado
Mannino, Giovanni
Smecca, Emanuele
Sanzaro, Salvatore
Valastro, Salvatore
Fisicaro, Giuseppe
La Magna, Antonino
Alberti, Alessandra
Exploring the Structural Competition between the Black and the Yellow Phase of CsPbI(3)
title Exploring the Structural Competition between the Black and the Yellow Phase of CsPbI(3)
title_full Exploring the Structural Competition between the Black and the Yellow Phase of CsPbI(3)
title_fullStr Exploring the Structural Competition between the Black and the Yellow Phase of CsPbI(3)
title_full_unstemmed Exploring the Structural Competition between the Black and the Yellow Phase of CsPbI(3)
title_short Exploring the Structural Competition between the Black and the Yellow Phase of CsPbI(3)
title_sort exploring the structural competition between the black and the yellow phase of cspbi(3)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8152980/
https://www.ncbi.nlm.nih.gov/pubmed/34068185
http://dx.doi.org/10.3390/nano11051282
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