On the Shape-Selected, Ligand-Free Preparation of Hybrid Perovskite (CH3NH3PbBr3) Microcrystals and Their Suitability as Model-System for Single-Crystal Studies of Optoelectronic Properties

Hybrid perovskite materials are one of the most promising candidates for optoelectronic applications, e.g., solar cells and LEDs, which can be produced at low cost compared to established materials. Although this field of research has seen a huge upsurge in the past decade, there is a major lack in...

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Autores principales:	Ulrich Johannes Bahnmüller, Henning Kuper, Tobias Seewald, Yenal Yalҫinkaya, Jörg August Becker, Lukas Schmidt-Mende, Stefan A. L. Weber, Sebastian Polarz
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	hybrid perovskites (HYPE) methylammonium lead bromide aerosol synthesis shape-related properties optoelectronic properties of MAPbBr<sub>3</sub> Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/a6a94a3279a04b8981241f03f28b4ba6
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spelling	oai:doaj.org-article:a6a94a3279a04b8981241f03f28b4ba62021-11-25T18:32:05ZOn the Shape-Selected, Ligand-Free Preparation of Hybrid Perovskite (CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub>) Microcrystals and Their Suitability as Model-System for Single-Crystal Studies of Optoelectronic Properties10.3390/nano111130572079-4991https://doaj.org/article/a6a94a3279a04b8981241f03f28b4ba62021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/3057https://doaj.org/toc/2079-4991Hybrid perovskite materials are one of the most promising candidates for optoelectronic applications, e.g., solar cells and LEDs, which can be produced at low cost compared to established materials. Although this field of research has seen a huge upsurge in the past decade, there is a major lack in understanding the underlying processes, such as shape-property relationships and the role of defects. Our aerosol-assisted synthesis pathway offers the possibility to obtain methylammonium lead bromide (MAPbBr<sub>3</sub>) microcrystals from a liquid single source precursor. The differently shaped particles are aligned on several substrates, without using a directing agent or other additives. The obtained particles show good stability under dry conditions. This allows us to characterize these materials and their pure surfaces at the single-crystal level using time- and spatially resolved methods, without any influences of size-dependent effects. By optimizing the precursor for the aerosol process, we were able to eliminate any purification steps and use the materials as processed. In addition, we performed theoretical simulations to deepen the understanding of the underlying processes in the formation of the different crystal facets and their specific properties. The model system presented provides insights into the shape-related properties of MAPbBr<sub>3</sub> single crystals and their directed but ligand-free synthesis.Ulrich Johannes BahnmüllerHenning KuperTobias SeewaldYenal YalҫinkayaJörg August BeckerLukas Schmidt-MendeStefan A. L. WeberSebastian PolarzMDPI AGarticlehybrid perovskites (HYPE)methylammonium lead bromideaerosol synthesisshape-related propertiesoptoelectronic properties of MAPbBr<sub>3</sub>ChemistryQD1-999ENNanomaterials, Vol 11, Iss 3057, p 3057 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hybrid perovskites (HYPE) methylammonium lead bromide aerosol synthesis shape-related properties optoelectronic properties of MAPbBr<sub>3</sub> Chemistry QD1-999
spellingShingle	hybrid perovskites (HYPE) methylammonium lead bromide aerosol synthesis shape-related properties optoelectronic properties of MAPbBr<sub>3</sub> Chemistry QD1-999 Ulrich Johannes Bahnmüller Henning Kuper Tobias Seewald Yenal Yalҫinkaya Jörg August Becker Lukas Schmidt-Mende Stefan A. L. Weber Sebastian Polarz On the Shape-Selected, Ligand-Free Preparation of Hybrid Perovskite (CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub>) Microcrystals and Their Suitability as Model-System for Single-Crystal Studies of Optoelectronic Properties
description	Hybrid perovskite materials are one of the most promising candidates for optoelectronic applications, e.g., solar cells and LEDs, which can be produced at low cost compared to established materials. Although this field of research has seen a huge upsurge in the past decade, there is a major lack in understanding the underlying processes, such as shape-property relationships and the role of defects. Our aerosol-assisted synthesis pathway offers the possibility to obtain methylammonium lead bromide (MAPbBr<sub>3</sub>) microcrystals from a liquid single source precursor. The differently shaped particles are aligned on several substrates, without using a directing agent or other additives. The obtained particles show good stability under dry conditions. This allows us to characterize these materials and their pure surfaces at the single-crystal level using time- and spatially resolved methods, without any influences of size-dependent effects. By optimizing the precursor for the aerosol process, we were able to eliminate any purification steps and use the materials as processed. In addition, we performed theoretical simulations to deepen the understanding of the underlying processes in the formation of the different crystal facets and their specific properties. The model system presented provides insights into the shape-related properties of MAPbBr<sub>3</sub> single crystals and their directed but ligand-free synthesis.
format	article
author	Ulrich Johannes Bahnmüller Henning Kuper Tobias Seewald Yenal Yalҫinkaya Jörg August Becker Lukas Schmidt-Mende Stefan A. L. Weber Sebastian Polarz
author_facet	Ulrich Johannes Bahnmüller Henning Kuper Tobias Seewald Yenal Yalҫinkaya Jörg August Becker Lukas Schmidt-Mende Stefan A. L. Weber Sebastian Polarz
author_sort	Ulrich Johannes Bahnmüller
title	On the Shape-Selected, Ligand-Free Preparation of Hybrid Perovskite (CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub>) Microcrystals and Their Suitability as Model-System for Single-Crystal Studies of Optoelectronic Properties
title_short	On the Shape-Selected, Ligand-Free Preparation of Hybrid Perovskite (CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub>) Microcrystals and Their Suitability as Model-System for Single-Crystal Studies of Optoelectronic Properties
title_full	On the Shape-Selected, Ligand-Free Preparation of Hybrid Perovskite (CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub>) Microcrystals and Their Suitability as Model-System for Single-Crystal Studies of Optoelectronic Properties
title_fullStr	On the Shape-Selected, Ligand-Free Preparation of Hybrid Perovskite (CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub>) Microcrystals and Their Suitability as Model-System for Single-Crystal Studies of Optoelectronic Properties
title_full_unstemmed	On the Shape-Selected, Ligand-Free Preparation of Hybrid Perovskite (CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub>) Microcrystals and Their Suitability as Model-System for Single-Crystal Studies of Optoelectronic Properties
title_sort	on the shape-selected, ligand-free preparation of hybrid perovskite (ch<sub>3</sub>nh<sub>3</sub>pbbr<sub>3</sub>) microcrystals and their suitability as model-system for single-crystal studies of optoelectronic properties
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/a6a94a3279a04b8981241f03f28b4ba6
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_version_	1718411036914089984

On the Shape-Selected, Ligand-Free Preparation of Hybrid Perovskite (CH<sub>3</sub>NH<sub>3</sub>PbBr<sub>3</sub>) Microcrystals and Their Suitability as Model-System for Single-Crystal Studies of Optoelectronic Properties

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