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Schleusener A, Faraji M, Borreani M, Lauciello S, Pasquale L, Khabbaz Abkenar S, Divitini G, Krahne R. Heterostructures via a Solution-Based Anion Exchange in Microcrystalline 2D Layered Metal-Halide Perovskites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2402924. [PMID: 38857474 DOI: 10.1002/adma.202402924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 05/27/2024] [Indexed: 06/12/2024]
Abstract
Layered perovskites consist of stacks of inorganic semiconducting metal-halide octahedra lattices sandwiched between organic layers with typically dielectric behavior. The in-plane confinement of electrical carriers in such two-dimensional metal halide perovskites drives a large range of appealing electronic properties, such as strong exciton binding, anisotropic charge diffusion, and polarization-directionality. Heterostructures provide additional control on carrier diffusion and localization, and in-plane heterojunctions are interesting because of the associated high charge mobility. Here, this work demonstrates a versatile solution-based approach to fabricate in-plane heterostructures with different halide composition in two-dimensional lead-halide perovskite microcrystals. This leads to spatially separated halide phases with different band gap and light emission. Interestingly, the composition of the exchanged phase and the morphology of the phase boundary depends on the exchange route, which can be related to the preferred localization of the halides at the equatorial or axial octahedra positions that either leads to dissolution and recrystallization of the octahedra lattice (for bromide to iodide), or allows for ion diffusion within the lattice (for iodide to bromide). These detailed insights on the ion exchange processes in layered perovskites will stimulate the development of heterostructures that can be tailored for different applications such as photocatalysis, energy storage, and light emission.
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Affiliation(s)
| | - Mehrdad Faraji
- Istituto Italiano di Tecnologia, Via Morego 30, Genova, 16163, Italy
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, Genova, 16146, Italy
| | - Martina Borreani
- Istituto Italiano di Tecnologia, Via Morego 30, Genova, 16163, Italy
| | - Simone Lauciello
- Istituto Italiano di Tecnologia, Via Morego 30, Genova, 16163, Italy
| | - Lea Pasquale
- Istituto Italiano di Tecnologia, Via Morego 30, Genova, 16163, Italy
| | | | - Giorgio Divitini
- Istituto Italiano di Tecnologia, Via Morego 30, Genova, 16163, Italy
| | - Roman Krahne
- Istituto Italiano di Tecnologia, Via Morego 30, Genova, 16163, Italy
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Dučinskas A, Jung M, Wang YR, Milić JV, Moia D, Grätzel M, Maier J. Mixed ionic-electronic conduction in Ruddlesden-Popper and Dion-Jacobson layered hybrid perovskites with aromatic organic spacers. JOURNAL OF MATERIALS CHEMISTRY. C 2024; 12:7909-7915. [PMID: 38855264 PMCID: PMC11154687 DOI: 10.1039/d4tc01010h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 04/29/2024] [Indexed: 06/11/2024]
Abstract
The understanding of mixed ionic-electronic conductivity in hybrid perovskites has enabled major advances in the development of optoelectronic devices based on this class of materials. While recent investigations revealed the potential of using dimensionality effects for various applications, the implication of this strategy on mixed conductivity is yet to be established. Here, we present a systematic analysis of mixed conduction in layered (2D) hybrid halide perovskite films based on 1,4-phenylenedimethylammonium (PDMA) and benzylammonium (BzA) organic spacers in (PDMA)PbI4 and (BzA)2PbI4 compositions, forming representative Dion-Jacobson (DJ) and Ruddleson-Popper (RP) phases, respectively. Electrochemical measurements of charge transport parallel to the layered structure reveal mixed ionic-electronic conduction with electronic transport mediated by electron holes in both DJ and RP phases. In comparison to the 3D perovskites, larger activation energies for both ionic and electronic conductivities are observed which result in lower absolute values. While the layered perovskites still allow for a relatively efficient exchange of iodine with the gas phase, the lower change of conductivity on the variation of the iodine partial pressure compared with 3D perovskites is consistent with the exchange affecting only a fraction of the film, with implications for the encapsulating efficacy of these materials. We complement the analysis with a demonstration of the superior thermal stability of DJ structures compared to their RP counterparts. This can guide future explorations of dimensionality and composition to control the transport and stabilization properties of 2D perovskite films.
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Affiliation(s)
- Algirdas Dučinskas
- Laboratory of Photonics and Interfaces, École Polytechnique Fédéralé de Lausanne 1015 Lausanne Switzerland
- Max Planck Institute for Solid State Research Heisenbergstr. 1 70569 Stuttgart Germany
| | - Mina Jung
- Max Planck Institute for Solid State Research Heisenbergstr. 1 70569 Stuttgart Germany
| | - Ya-Ru Wang
- Max Planck Institute for Solid State Research Heisenbergstr. 1 70569 Stuttgart Germany
| | - Jovana V Milić
- Laboratory of Photonics and Interfaces, École Polytechnique Fédéralé de Lausanne 1015 Lausanne Switzerland
- Adolphe Merkle Institute, University of Fribourg 1700 Fribourg Switzerland
| | - Davide Moia
- Max Planck Institute for Solid State Research Heisenbergstr. 1 70569 Stuttgart Germany
| | - Michael Grätzel
- Laboratory of Photonics and Interfaces, École Polytechnique Fédéralé de Lausanne 1015 Lausanne Switzerland
| | - Joachim Maier
- Max Planck Institute for Solid State Research Heisenbergstr. 1 70569 Stuttgart Germany
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3
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Hope MA, Cordova M, Mishra A, Gunes U, Caiazzo A, Datta K, Janssen RAJ, Emsley L. Axial-Equatorial Halide Ordering in Layered Hybrid Perovskites from Isotropic-Anisotropic 207 Pb NMR. Angew Chem Int Ed Engl 2024; 63:e202314856. [PMID: 38305510 DOI: 10.1002/anie.202314856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 02/03/2024]
Abstract
Bandgap-tuneable mixed-halide 3D perovskites are of interest for multi-junction solar cells, but suffer from photoinduced spatial halide segregation. Mixed-halide 2D perovskites are more resistant to halide segregation and are promising coatings for 3D perovskite solar cells. The properties of mixed-halide compositions depend on the local halide distribution, which is challenging to study at the level of single octahedra. In particular, it has been suggested that there is a preference for occupation of the distinct axial and equatorial halide sites in mixed-halide 2D perovskites. 207 Pb NMR can be used to probe the atomic-scale structure of lead-halide materials, but although the isotropic 207 Pb shift is sensitive to halide stoichiometry, it cannot distinguish configurational isomers. Here, we use 2D isotropic-anisotropic correlation 207 Pb NMR and relativistic DFT calculations to distinguish the [PbX6 ] configurations in mixed iodide-bromide 3D FAPb(Br1-x Ix )3 perovskites and 2D BA2 Pb(Br1-x Ix )4 perovskites based on formamidinium (FA+ ) and butylammonium (BA+ ), respectively. We find that iodide preferentially occupies the axial site in BA-based 2D perovskites, which may explain the suppressed halide mobility.
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Affiliation(s)
- Michael A Hope
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Manuel Cordova
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Aditya Mishra
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Ummugulsum Gunes
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Alessandro Caiazzo
- Molecular Materials and Nanosystems, Institute of Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Kunal Datta
- Molecular Materials and Nanosystems, Institute of Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - René A J Janssen
- Molecular Materials and Nanosystems, Institute of Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Lyndon Emsley
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
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Metcalf I, Sidhik S, Zhang H, Agrawal A, Persaud J, Hou J, Even J, Mohite AD. Synergy of 3D and 2D Perovskites for Durable, Efficient Solar Cells and Beyond. Chem Rev 2023; 123:9565-9652. [PMID: 37428563 DOI: 10.1021/acs.chemrev.3c00214] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Three-dimensional (3D) organic-inorganic lead halide perovskites have emerged in the past few years as a promising material for low-cost, high-efficiency optoelectronic devices. Spurred by this recent interest, several subclasses of halide perovskites such as two-dimensional (2D) halide perovskites have begun to play a significant role in advancing the fundamental understanding of the structural, chemical, and physical properties of halide perovskites, which are technologically relevant. While the chemistry of these 2D materials is similar to that of the 3D halide perovskites, their layered structure with a hybrid organic-inorganic interface induces new emergent properties that can significantly or sometimes subtly be important. Synergistic properties can be realized in systems that combine different materials exhibiting different dimensionalities by exploiting their intrinsic compatibility. In many cases, the weaknesses of each material can be alleviated in heteroarchitectures. For example, 3D-2D halide perovskites can demonstrate novel behavior that neither material would be capable of separately. This review describes how the structural differences between 3D halide perovskites and 2D halide perovskites give rise to their disparate materials properties, discusses strategies for realizing mixed-dimensional systems of various architectures through solution-processing techniques, and presents a comprehensive outlook for the use of 3D-2D systems in solar cells. Finally, we investigate applications of 3D-2D systems beyond photovoltaics and offer our perspective on mixed-dimensional perovskite systems as semiconductor materials with unrivaled tunability, efficiency, and technologically relevant durability.
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Affiliation(s)
- Isaac Metcalf
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Siraj Sidhik
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Hao Zhang
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
- Applied Physics Graduate Program, Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
| | - Ayush Agrawal
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Jessica Persaud
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Jin Hou
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Jacky Even
- Université de Rennes, INSA Rennes, CNRS, Institut FOTON - UMR 6082, 35708 Rennes, France
| | - Aditya D Mohite
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
- Applied Physics Graduate Program, Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
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Datta K, Caiazzo A, Hope MA, Li J, Mishra A, Cordova M, Chen Z, Emsley L, Wienk MM, Janssen RAJ. Light-Induced Halide Segregation in 2D and Quasi-2D Mixed-Halide Perovskites. ACS ENERGY LETTERS 2023; 8:1662-1670. [PMID: 37090170 PMCID: PMC10111410 DOI: 10.1021/acsenergylett.3c00160] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 02/28/2023] [Indexed: 05/03/2023]
Abstract
Photoinduced halide segregation hinders widespread application of three-dimensional (3D) mixed-halide perovskites. Much less is known about this phenomenon in lower-dimensional systems. Here, we study photoinduced halide segregation in lower-dimensional mixed iodide-bromide perovskites (PEA2MA n-1Pb n (Br x I1-x )3n+1, with PEA+: phenethylammonium and MA+: methylammonium) through time-dependent photoluminescence (PL) spectroscopy. We show that layered two-dimensional (2D) structures render additional stability against the demixing of halide phases under illumination. We ascribe this behavior to reduced halide mobility due to the intrinsic heterogeneity of 2D mixed-halide perovskites, which we demonstrate via 207Pb solid-state NMR. However, the dimensionality of the 2D phase is critical in regulating photostability. By tracking the PL of multidimensional perovskite films under illumination, we find that while halide segregation is largely inhibited in 2D perovskites (n = 1), it is not suppressed in quasi-2D phases (n = 2), which display a behavior intermediate between 2D and 3D and a peculiar absence of halide redistribution in the dark that is only induced at higher temperature for the quasi-2D phase.
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Affiliation(s)
- Kunal Datta
- Molecular
Materials and Nanosystems, Institute of Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Alessandro Caiazzo
- Molecular
Materials and Nanosystems, Institute of Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Michael A. Hope
- Institut
des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, Lausanne 1015, Switzerland
| | - Junyu Li
- Molecular
Materials and Nanosystems, Institute of Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Aditya Mishra
- Institut
des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, Lausanne 1015, Switzerland
| | - Manuel Cordova
- Institut
des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, Lausanne 1015, Switzerland
| | - Zehua Chen
- Materials
Simulation and Modelling and Center for Computational Energy Research,
Department of Applied Physics, Eindhoven
University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Lyndon Emsley
- Institut
des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, Lausanne 1015, Switzerland
| | - Martijn M. Wienk
- Molecular
Materials and Nanosystems, Institute of Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - René A. J. Janssen
- Molecular
Materials and Nanosystems, Institute of Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Dutch
Institute for Fundamental Energy Research, 5612 AJ Eindhoven, The Netherlands
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