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
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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| Format: | Article |
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MDPI AG
2021-11-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/11/3057 |
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| 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 |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T05:13:08Z |
| format | Article |
| id | doaj.art-a6a94a3279a04b8981241f03f28b4ba6 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T05:13:08Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-a6a94a3279a04b8981241f03f28b4ba62023-11-23T00:42:32ZengMDPI AGNanomaterials2079-49912021-11-011111305710.3390/nano11113057On 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 PropertiesUlrich Johannes Bahnmüller0Henning Kuper1Tobias Seewald2Yenal Yalҫinkaya3Jörg August Becker4Lukas Schmidt-Mende5Stefan A. L. Weber6Sebastian Polarz7Institute of Inorganic Chemistry, Leibniz University Hannover, Callinstraße 9, 30167 Hannover, GermanyInstitute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Callinstraße 3A, 30167 Hannover, GermanyDepartment of Physics, University of Konstanz, Universitätsstraße 10, 78457 Konstanz, GermanyMax-Planck-Institute for Polymeric Research, Ackermannweg 10, 55128 Mainz, GermanyInstitute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Callinstraße 3A, 30167 Hannover, GermanyDepartment of Physics, University of Konstanz, Universitätsstraße 10, 78457 Konstanz, GermanyMax-Planck-Institute for Polymeric Research, Ackermannweg 10, 55128 Mainz, GermanyInstitute of Inorganic Chemistry, Leibniz University Hannover, Callinstraße 9, 30167 Hannover, GermanyHybrid 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.https://www.mdpi.com/2079-4991/11/11/3057hybrid perovskites (HYPE)methylammonium lead bromideaerosol synthesisshape-related propertiesoptoelectronic properties of MAPbBr<sub>3</sub> |
| spellingShingle | 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 Nanomaterials hybrid perovskites (HYPE) methylammonium lead bromide aerosol synthesis shape-related properties optoelectronic properties of MAPbBr<sub>3</sub> |
| 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_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_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_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 |
| topic | hybrid perovskites (HYPE) methylammonium lead bromide aerosol synthesis shape-related properties optoelectronic properties of MAPbBr<sub>3</sub> |
| url | https://www.mdpi.com/2079-4991/11/11/3057 |
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