date: 2021-12-10T12:03:07Z pdf:PDFVersion: 1.7 pdf:docinfo:title: 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 xmp:CreatorTool: LaTeX with hyperref package access_permission:can_print_degraded: true subject: 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 (MAPbBr3) 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 MAPbBr3 single crystals and their directed but ligand-free synthesis. dc:format: application/pdf; version=1.7 pdf:docinfo:creator_tool: LaTeX with hyperref package access_permission:fill_in_form: true pdf:encrypted: false dc:title: 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 modified: 2021-12-10T12:03:07Z cp:subject: 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 (MAPbBr3) 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 MAPbBr3 single crystals and their directed but ligand-free synthesis. pdf:docinfo:subject: 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 (MAPbBr3) 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 MAPbBr3 single crystals and their directed but ligand-free synthesis. pdf:docinfo:creator: Ulrich Johannes Bahnmüller, Henning Kuper, Tobias Seewald, Yenal Yal?inkaya, Jörg August Becker, Lukas Schmidt-Mende, Stefan A. L. Weber and Sebastian Polarz meta:author: Ulrich Johannes Bahnmüller meta:creation-date: 2021-11-13T10:11:35Z created: 2021-11-13T10:11:35Z access_permission:extract_for_accessibility: true Creation-Date: 2021-11-13T10:11:35Z Author: Ulrich Johannes Bahnmüller producer: pdfTeX-1.40.18 pdf:docinfo:producer: pdfTeX-1.40.18 pdf:unmappedUnicodeCharsPerPage: 17 dc: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 (MAPbBr3) 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 MAPbBr3 single crystals and their directed but ligand-free synthesis. Keywords: hybrid perovskites (HYPE); methylammonium lead bromide; aerosol synthesis; shape-related properties; optoelectronic properties of MAPbBr3 access_permission:modify_annotations: true dc:creator: Ulrich Johannes Bahnmüller 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 (MAPbBr3) 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 MAPbBr3 single crystals and their directed but ligand-free synthesis. dcterms:created: 2021-11-13T10:11:35Z Last-Modified: 2021-12-10T12:03:07Z dcterms:modified: 2021-12-10T12:03:07Z title: 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 xmpMM:DocumentID: uuid:7a1be5f2-7747-4d7b-b6e4-5c1fb04306c3 Last-Save-Date: 2021-12-10T12:03:07Z pdf:docinfo:keywords: hybrid perovskites (HYPE); methylammonium lead bromide; aerosol synthesis; shape-related properties; optoelectronic properties of MAPbBr3 pdf:docinfo:modified: 2021-12-10T12:03:07Z meta:save-date: 2021-12-10T12:03:07Z Content-Type: application/pdf X-Parsed-By: org.apache.tika.parser.DefaultParser creator: Ulrich Johannes Bahnmüller dc:subject: hybrid perovskites (HYPE); methylammonium lead bromide; aerosol synthesis; shape-related properties; optoelectronic properties of MAPbBr3 access_permission:assemble_document: true xmpTPg:NPages: 22 pdf:charsPerPage: 4042 access_permission:extract_content: true access_permission:can_print: true meta:keyword: hybrid perovskites (HYPE); methylammonium lead bromide; aerosol synthesis; shape-related properties; optoelectronic properties of MAPbBr3 access_permission:can_modify: true pdf:docinfo:created: 2021-11-13T10:11:35Z