1
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Balvanz A, Safdari M, Zacharias M, Kim D, Welton C, Oriel EH, Kepenekian M, Katan C, Malliakas CD, Even J, Klepov V, Manjunatha Reddy GN, Schaller RD, Chen LX, Seshadri R, Kanatzidis MG. Structural Evolution and Photoluminescence Quenching across the FASnI 3-xBr x ( x = 0-3) Perovskites. J Am Chem Soc 2024; 146:16128-16147. [PMID: 38815003 DOI: 10.1021/jacs.4c03669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
One of the primary methods for band gap tuning in metal halide perovskites has been halide (I/Br) mixing. Despite widespread usage of this type of chemical substitution in perovskite photovoltaics, there is still little understanding of the structural impacts of halide alloying, with the assumption being the formation of ideal solid solutions. The FASnI3-xBrx (x = 0-3) family of compounds provides the first example where the assumption breaks down, as the composition space is broken into two unique regimes (x = 0-2.9; x = 2.9-3) based on their average structure with the former having a 3D and the latter having an extended 3D (pseudo 0D) structure. Pair distribution function (PDF) analyses further suggest a dynamic 5s2 lone pair expression resulting in increasing levels of off-centering of the central Sn as the Br concentration is increased. These antiferroelectric distortions indicate that even the x = 0-2.9 phase space behaves as a nonideal solid-solution on a more local scale. Solid-state NMR confirms the difference in local structure yielding greater insight into the chemical nature and local distributions of the FA+ cation. In contrast to the FAPbI3-xBrx series, a drastic photoluminescence (PL) quenching is observed with x ≥ 1.9 compounds having no observable PL. Our detailed studies attribute this quenching to structural transitions induced by the distortions of the [SnBr6] octahedra in response to stereochemically expressed lone pairs of electrons. This is confirmed through density functional theory, having a direct impact on the electronic structure.
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Affiliation(s)
- Adam Balvanz
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Majid Safdari
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemistry, Division of Applied Physical Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Marios Zacharias
- Univ Rennes, INSA Rennes, CNRS, Institute FOTON - UMR 6082, Rennes F-35000, France
| | - Daehan Kim
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Claire Welton
- University of Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille F-59000, France
| | - Evan H Oriel
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Mikaël Kepenekian
- Univ Rennes, INSA Rennes, CNRS, ISCR - UMR 6226, Rennes F-35000, France
| | - Claudine Katan
- Univ Rennes, INSA Rennes, CNRS, ISCR - UMR 6226, Rennes F-35000, France
| | - Christos D Malliakas
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Jacky Even
- Univ Rennes, INSA Rennes, CNRS, Institute FOTON - UMR 6082, Rennes F-35000, France
| | - Vladislav Klepov
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - G N Manjunatha Reddy
- University of Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille F-59000, France
| | - Richard D Schaller
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Lin X Chen
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Ram Seshadri
- Materials Department and Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
| | - Mercouri G Kanatzidis
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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2
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Droseros N, Ferdowsi P, Martinez EO, Saliba M, Banerji N, Tsokkou D. Excited-State Dynamics of MAPbBr 3: Coexistence of Excitons and Free Charge Carriers at Ultrafast Times. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2024; 128:8637-8648. [PMID: 38835933 PMCID: PMC11145650 DOI: 10.1021/acs.jpcc.3c08509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/20/2024] [Accepted: 03/25/2024] [Indexed: 06/06/2024]
Abstract
Methylammonium lead tribromide perovskite (MAPbBr3) is an important material, for example, for light-emitting applications and tandem solar cells. The relevant photophysical properties are governed by a plethora of phenomena resulting from the complex and relatively poorly understood interplay of excitons and free charge carriers in the excited state. In this study, we combine transient spectroscopies in the visible and terahertz range to investigate the presence and evolution of excitons and free charge carriers at ultrafast times upon excitation at various photon energies and densities. For above- and resonant band-gap excitation, we find that free charges and excitons coexist and that both are mainly promptly generated within our 50-100 fs experimental time resolution. However, the exciton-to-free charge ratio increases upon decreasing the phonon energy toward resonant band gap excitation. The free charge signatures dominate the transient absorption response for above-band-gap excitation and low excitation densities, masking the excitonic features. With resonant band gap excitation and low excitation densities, we find that although the exciton density increases, free charges remain. We show evidence that the excitons localize into shallow trap and/or Urbach tail states to form localized excitons (within tens of picoseconds) that subsequently get detrapped. Using high excitation densities, we demonstrate that many-body interactions become pronounced and effects such as the Moss-Burstein shift, band gap renormalization, excitonic repulsion, and the formation of Mahan excitons are evident. The coexistence of excitons and free charges that we demonstrate here for photoexcited MAPbBr3 at ultrafast time scales confirms the high potential of the material for both light-emitting diode and tandem solar cell applications.
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Affiliation(s)
- Nikolaos Droseros
- Department
of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, Bern CH-3012, Switzerland
| | - Parnian Ferdowsi
- Adolphe
Merkle Institute, Chemin des Verdiers 4, Fribourg CH-1700, Switzerland
| | | | - Michael Saliba
- Helmholtz
Young Investigator Group FRONTRUNNER, IEK5-Photovoltaics,
Forschungszentrum Jülich, Jülich 52428, Germany
- Institute
for Photovoltaics, University of Stuttgart, Stuttgart 70569, Germany
| | - Natalie Banerji
- Department
of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, Bern CH-3012, Switzerland
| | - Demetra Tsokkou
- Department
of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, Bern CH-3012, Switzerland
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3
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Luo F, Lim D, Seok HJ, Kim HK. Solvent-free preparation and thermocompression self-assembly: an exploration of performance improvement strategies for perovskite solar cells. RSC Adv 2024; 14:17261-17294. [PMID: 38808244 PMCID: PMC11132079 DOI: 10.1039/d4ra02191f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 05/10/2024] [Indexed: 05/30/2024] Open
Abstract
Perovskite solar cells (PSCs) exhibit sufficient technological efficiency and economic competitiveness. However, their poor stability and scalability are crucial factors limiting their rapid development. Therefore, achieving both high efficiency and good stability is an urgent challenge. In addition, the preparation methods for PSCs are currently limited to laboratory-scale methods, so their commercialization requires further research. Effective packaging technology is essential to protect the PSCs from degradation by external environmental factors and ensure their long-term stability. The industrialization of PSCs is also inseparable from the preparation technology of perovskite thin films. This review discusses the solvent-free preparation of PSCs, shedding light on the factors that affect PSC performance and strategies for performance enhancement. Furthermore, this review analyzes the existing simulation techniques that have contributed to a better understanding of the interfacial evolution of PSCs during the packaging process. Finally, the current challenges and possible solutions are highlighted, providing insights to facilitate the development of highly efficient and stable PSC modules to promote their widespread application.
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Affiliation(s)
- Fang Luo
- School of Advanced Materials Science and Engineering, Sungkyunkwan University 2066, Seobu-ro Jangan-gu Suwon-si Gyeonggi-do 16419 the Republic of Korea
| | - Doha Lim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University 2066, Seobu-ro Jangan-gu Suwon-si Gyeonggi-do 16419 the Republic of Korea
| | - Hae-Jun Seok
- School of Advanced Materials Science and Engineering, Sungkyunkwan University 2066, Seobu-ro Jangan-gu Suwon-si Gyeonggi-do 16419 the Republic of Korea
| | - Han-Ki Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University 2066, Seobu-ro Jangan-gu Suwon-si Gyeonggi-do 16419 the Republic of Korea
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4
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Ruth A, Kuno M. Modeling the Photoelectrochemical Evolution of Lead-Based, Mixed-Halide Perovskites Due to Photosegregation. ACS NANO 2023; 17:20502-20511. [PMID: 37815981 DOI: 10.1021/acsnano.3c07165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
Lead-based, mixed-halide perovskites such as methylammonium lead iodide-bromide [MAPb(I1-xBrx)3] undergo anion photosegregation under illumination. This is observed as low-band-gap photoluminescence from photogenerated iodine-rich domains due to favorable band offsets that induce carrier funneling into them. Unfortunately, theoretical rationalizations of mixed-halide photosegregation are complicated by biases inherent in photoluminescence-based observations. Recent compositionally weighted X-ray diffraction (XRD) measurements now reveal broad distributions of photosegregated stoichiometries not captured by existing photosegregation models. To better bridge experiment and theory, we perform kinetic Monte Carlo (KMC) simulations of photosegregation within the context of a band-gap-based thermodynamic model, which has previously accounted for numerous experimental observations. Our KMC simulations are modified to consider high carrier density Fermi-Dirac statistics that result from carrier funneling and accumulation within photosegregated I-rich domains. Obtained KMC results reproduce broad terminal halide (xterminal) distributions seen experimentally and illustrate how they are characterized by a central, heavily I-enriched stoichiometry. I-rich domain "drifting" during photosegregation rationalizes the long photosegregation time scales seen experimentally with drifting simultaneously, producing a wake of variable stoichiometry I-rich inclusions that form the lion's share of stoichiometric heterogeneities seen in compositionally weighted XRD measurements. These simulations and accompanying rationalizations further reveal a general criterion for realizing favorable free energies to induce demixing. Central to the criterion is the statistical occupation of low gap inclusions in the parent alloy by excitations. The resulting model thus provides a general framework for conceptualizing mixed-halide perovskite light and temperature sensitivities mediated by photocarriers.
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Affiliation(s)
- Anthony Ruth
- University of Notre Dame, Department of Physics and Astronomy, Notre Dame, Indiana 46556, United States
| | - Masaru Kuno
- University of Notre Dame, Department of Physics and Astronomy, Notre Dame, Indiana 46556, United States
- University of Notre Dame, Department of Chemistry and Biochemistry and Department of Physics and Astronomy, Notre Dame, Indiana 46556, United States
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5
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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: 14] [Impact Index Per Article: 14.0] [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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6
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Ma D, Xu Y, Chen Q, Ding H, Tan X, Xu Q, Yang C. Suppressed Phase Separation of Mixed-Halide Perovskite Quantum Dots Confined in Mesoporous Metal Organic Frameworks. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13101655. [PMID: 37242071 DOI: 10.3390/nano13101655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/10/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023]
Abstract
Mixed-halide perovskite quantum dots (PeQDs) are the most competitive candidates in designing solar cells and light-emitting devices (LEDs) due to their tunable bandgap and high-efficiency quantum yield. However, phase separation in mixed-halide perovskites under illumination can form rich iodine and bromine regions, which change its optical responses. Herein, we synthesize PeQDs combined with mesoporous zinc-based metal organic framework (MOF) crystals, which can greatly improve the stability of anti-anion exchange, including photo-, thermal, and long-term stabilities under illumination. This unique structure provides a solution for improving the performance of perovskite optoelectronic devices and stabilizing mixed-halide perovskite devices.
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Affiliation(s)
- Duanqi Ma
- Department of Physics and Optoelectronic Engineering, Ludong University, Yantai 264025, China
| | - Yanlin Xu
- Department of Physics and Optoelectronic Engineering, Ludong University, Yantai 264025, China
| | - Qiuying Chen
- Department of Physics and Optoelectronic Engineering, Ludong University, Yantai 264025, China
| | - Huafeng Ding
- Department of Physics and Optoelectronic Engineering, Ludong University, Yantai 264025, China
| | - Xiaoming Tan
- Department of Physics and Optoelectronic Engineering, Ludong University, Yantai 264025, China
| | - Qinfeng Xu
- Department of Physics and Optoelectronic Engineering, Ludong University, Yantai 264025, China
| | - Chuanlu Yang
- Department of Physics and Optoelectronic Engineering, Ludong University, Yantai 264025, China
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7
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Wright AD, Patel JB, Johnston MB, Herz LM. Temperature-Dependent Reversal of Phase Segregation in Mixed-Halide Perovskites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2210834. [PMID: 36821796 DOI: 10.1002/adma.202210834] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/24/2023] [Indexed: 05/12/2023]
Abstract
Understanding the mechanism of light-induced halide segregation in mixed-halide perovskites is essential for their application in multijunction solar cells. Here, photoluminescence spectroscopy is used to uncover how both increases in temperature and light intensity can counteract the halide segregation process. It is observed that, with increasing temperature, halide segregation in CH3 NH3 Pb(Br0.4 I0.6 )3 first accelerates toward ≈290 K, before slowing down again toward higher temperatures. Such reversal is attributed to the trade-off between the temperature activation of segregation, for example through enhanced ionic migration, and its inhibition by entropic factors. High light intensities meanwhile can also reverse halide segregation; however, this is found to be only a transient process that abates on the time scale of minutes. Overall, these observations pave the way for a more complete model of halide segregation and aid the development of highly efficient and stable perovskite multijunction and concentrator photovoltaics.
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Affiliation(s)
- Adam D Wright
- Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU, UK
| | - Jay B Patel
- Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU, UK
| | - Michael B Johnston
- Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU, UK
| | - Laura M Herz
- Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU, UK
- Institute for Advanced Study, Technical University of Munich (TUM), Lichtenbergstraße 2a, 85748, Garching bei München, Germany
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8
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Mehrabian M, Akhavan O, Rabiee N, Afshar EN, Zare EN. Lead-free MAGeI 3 as a suitable alternative for MAPbI 3 in nanostructured perovskite solar cells: a simulation study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:57032-57040. [PMID: 36930321 DOI: 10.1007/s11356-023-26497-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 03/13/2023] [Indexed: 06/18/2023]
Abstract
The lead is a heavy metal with hazardous impacts on environment and human life. Lead-free perovskite solar cells have attracted much attention in recent years, due to eco-friendly characteristics. Meanwhile, Pb-containing cells showed the highest efficiencies among the various types of cells. Hence, designing novel Pb-free solar cells with comparable or better performance than the Pb-containing ones is highly required. In this work, a lead-free methyl-ammonium-germanium-iodide (MAGeI3)-based perovskite solar cell with ITO/TiO2/MAGeI3/Spiro-OMeTAD/Ag multilayer nanostructure has been proposed and its main characteristics including open-circuit voltage (VOC) and power conversion efficiency (η) have been evaluated and compared with those of MAPbI3-based cell, in simulation study. The VOC and η of the MAGeI3-based cell (1.18 V and 11.9%) have been found comparable with those of the MAPbI3 one (1.10 V and 14.6%). These results can excite more attention to Ge as a more environment-friendly element than Pb, in highly efficient upcoming perovskite solar cells.
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Affiliation(s)
- Masood Mehrabian
- Department of Physics, Faculty of Basic Science, University of Maragheh, P.O. Box, Maragheh, 55181-83111, Iran
| | - Omid Akhavan
- Department of Physics, Sharif University of Technology, P.O. Box 11155-9161, Tehran, Islamic Republic of Iran.
| | - Navid Rabiee
- Department of Physics, Sharif University of Technology, P.O. Box 11155-9161, Tehran, Islamic Republic of Iran
- School of Engineering, Macquarie University, Sydney, New South Wales, 2109, Australia
| | - Elham Norouzi Afshar
- Department of Physics, Faculty of Basic Science, University of Maragheh, P.O. Box, Maragheh, 55181-83111, Iran
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9
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Qin JP, Pan CY. Synthesis, structure and optical properties of (H2DMAPA)BiBr5, (H2DMAPA)BiBr2I3, (H2DMAPA)2AgBiBr8 and (H2EP)2AgBiBr8 lead-free perovskites. J SOLID STATE CHEM 2023. [DOI: 10.1016/j.jssc.2023.123938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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10
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Li M, Huang P, Zhong H. Current Understanding of Band-Edge Properties of Halide Perovskites: Urbach Tail, Rashba Splitting, and Exciton Binding Energy. J Phys Chem Lett 2023; 14:1592-1603. [PMID: 36749031 DOI: 10.1021/acs.jpclett.2c03525] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The band-edge structure of halide perovskites, derived from the hybridization of atomic orbitals, plays a fundamental role in determining their optical and electronic properties. Several important concepts have been frequently discussed to describe the influence of band-edge structure on their optoelectronic properties, including Urbach tail, Rashba splitting, and exciton binding energy. In this Perspective, we provide a fundamental understanding of these concepts, with the focus on their dependence on composition, structure, or dimensionality. Subsequently, the implications for material optimization and device fabrication are discussed. Furthermore, we highlight the Rashba effect on the exciton fine structure in perovskite nanocrystals (PNCs), which explains the unique emissive properties. Finally, we discuss the potential influence of band-edge properties on the light emission process. We hope that this Perspective can inspire the investigation of band-edge properties of halide perovskites for light-emitting diodes, lasers, and spin electronics.
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Affiliation(s)
- Menglin Li
- MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Peng Huang
- MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Haizheng Zhong
- MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
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11
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Liu Y, Banon JP, Frohna K, Chiang YH, Tumen-Ulzii G, Stranks SD, Filoche M, Friend RH. The Electronic Disorder Landscape of Mixed Halide Perovskites. ACS ENERGY LETTERS 2023; 8:250-258. [PMID: 36660372 PMCID: PMC9841609 DOI: 10.1021/acsenergylett.2c02352] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 11/23/2022] [Indexed: 05/13/2023]
Abstract
Band gap tunability of lead mixed halide perovskites makes them promising candidates for various applications in optoelectronics. Here we use the localization landscape theory to reveal that the static disorder due to iodide:bromide compositional alloying contributes at most 3 meV to the Urbach energy. Our modeling reveals that the reason for this small contribution is due to the small effective masses in perovskites, resulting in a natural length scale of around 20 nm for the "effective confining potential" for electrons and holes, with short-range potential fluctuations smoothed out. The increase in Urbach energy across the compositional range agrees well with our optical absorption measurements. We model systems of sizes up to 80 nm in three dimensions, allowing us to accurately reproduce the experimentally observed absorption spectra of perovskites with halide segregation. Our results suggest that we should look beyond static contribution and focus on the dynamic temperature dependent contribution to the Urbach energy.
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Affiliation(s)
- Yun Liu
- Cavendish
Laboratory, University of Cambridge, CambridgeCB3 0HE, United Kingdom
| | - Jean-Philippe Banon
- Laboratoire
de Physique de la Matière Condensée, CNRS, École Polytechnique, Institut Polytechnique
de Paris, 91120Palaiseau, France
| | - Kyle Frohna
- Cavendish
Laboratory, University of Cambridge, CambridgeCB3 0HE, United Kingdom
| | - Yu-Hsien Chiang
- Cavendish
Laboratory, University of Cambridge, CambridgeCB3 0HE, United Kingdom
| | - Ganbaatar Tumen-Ulzii
- Department
of Chemical Engineering & Biotechnology, University of Cambridge, CambridgeCB3 0AS, United Kingdom
| | - Samuel D. Stranks
- Cavendish
Laboratory, University of Cambridge, CambridgeCB3 0HE, United Kingdom
- Department
of Chemical Engineering & Biotechnology, University of Cambridge, CambridgeCB3 0AS, United Kingdom
| | - Marcel Filoche
- Laboratoire
de Physique de la Matière Condensée, CNRS, École Polytechnique, Institut Polytechnique
de Paris, 91120Palaiseau, France
- Institut
Langevin, ESPCI Paris, Université
PSL, CNRS, 75005Paris, France
| | - Richard H. Friend
- Cavendish
Laboratory, University of Cambridge, CambridgeCB3 0HE, United Kingdom
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Mohammad T, Alam F, Sadhanala A, Upadhyaya HM, Dutta V. Tin Sulfide (SnS) Films Deposited by an Electric Field-Assisted Continuous Spray Pyrolysis Technique with Application as Counter Electrodes in Dye-Sensitized Solar Cells. ACS OMEGA 2022; 7:39690-39696. [PMID: 36385805 PMCID: PMC9648050 DOI: 10.1021/acsomega.2c03454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 08/10/2022] [Indexed: 06/16/2023]
Abstract
The deposition of tin sulfide (SnS) nanostructured films using a continuous spray pyrolysis technique is reported with an electric field present at the nozzle for influencing the atomization and the subsequent film deposition. In the absence of the electric field, the X-ray diffraction pattern shows the orthorhombic phase of SnS with a crystallographic preferred orientation along the (040) plane. The application of the electric field results in significant improvement in the morphology and a reduction in surface roughness (28 nm from 37 nm). The direct optical band gap of the films deposited with and without the electric field is estimated to be 1.5 and 1.7 eV, respectively. The photothermal deflection spectroscopy studies show a lower energetic disorder (no Urbach tail), which indicates an annealing effect in the SnS films deposited under the electric field. The improvement in the film properties is reflected in the expected improvement in the power conversion efficiency (PCE) of dye-sensitized solar cells fabricated using the SnS film as a counter electrode. An enhancement of PCE from 2.07% for the film deposited without the electric field to 2.89% for the film deposited with the electric field shows the role of the electric field in the fabrication of improved SnS films.
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Affiliation(s)
- Tauheed Mohammad
- Centre
for Nanoscience and Engineering, Indian
Institute of Science, Bangalore 560012, India
| | - Firoz Alam
- Department
of Electronic and Electrical Engineering, University College London, London WC1E 6BT, U.K.
| | - Aditya Sadhanala
- Centre
for Nanoscience and Engineering, Indian
Institute of Science, Bangalore 560012, India
- Photovoltaic
and Optoelectronic Device Group, Clarendon Laboratory, University of Oxford, Oxford OX1 2JD, U.K.
- Cavendish
Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, U.K.
| | - Hari M. Upadhyaya
- London
Centre for Energy Engineering, School of Engineering, London South Bank University, London SE1 0AA, U.K.
| | - Viresh Dutta
- Department
of Energy Science and Engineering, Indian
Institute of Technology Delhi, New Delhi 110016, India
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13
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Gallop NP, Ye J, Greetham GM, Jansen TLC, Dai L, Zelewski SJ, Arul R, Baumberg JJ, Hoye RLZ, Bakulin AA. The effect of caesium alloying on the ultrafast structural dynamics of hybrid organic-inorganic halide perovskites. JOURNAL OF MATERIALS CHEMISTRY. A 2022; 10:22408-22418. [PMID: 36352854 PMCID: PMC9624371 DOI: 10.1039/d2ta05207e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Hybrid inorganic-organic perovskites have attracted considerable attention over recent years as promising processable electronic materials. In particular, the rich structural dynamics of these 'soft' materials has become a subject of investigation and debate due to their direct influence on the perovskites' optoelectronic properties. Significant effort has focused on understanding the role and behaviour of the organic cations within the perovskite, as their rotational dynamics may be linked to material stability, heterogeneity and performance in (opto)electronic devices. To this end, we use two-dimensional IR spectroscopy (2DIR) to understand the effect of partial caesium alloying on the rotational dynamics of the methylammonium cation in the archetypal hybrid perovskite CH3NH3PbI3. We find that caesium incorporation primarily inhibits the slower 'reorientational jump' modes of the organic cation, whilst a smaller effect on the fast 'wobbling time' may be due to distortions and rigidisation of the inorganic cuboctahedral cage. 2DIR centre-line-slope analysis further reveals that while static disorder increases with caesium substitution, the dynamic disorder (reflected in the phase memory of the N-H stretching mode of methylammonium) is largely independent of caesium addition. Our results contribute to the development of a unified model of cation dynamics within organohalide perovskites.
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Affiliation(s)
- Nathaniel P Gallop
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub 83 Wood Lane London W12 0BZ UK
| | - Junzhi Ye
- Cavendish Laboratory, University of Cambridge JJ Thomson Avenue Cambridge CB3 0HE UK
- Department of Materials, Imperial College London Exhibition Road London SW7 2AZ UK
| | - Gregory M Greetham
- Central Laser Facility, Rutherford Appleton Laboratory Harwell Campus Didcot OX11 0QX UK
| | - Thomas L C Jansen
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 9747 AG Groningen Netherlands
| | - Linjie Dai
- Cavendish Laboratory, University of Cambridge JJ Thomson Avenue Cambridge CB3 0HE UK
| | - Szymon J Zelewski
- Cavendish Laboratory, University of Cambridge JJ Thomson Avenue Cambridge CB3 0HE UK
- Department of Semiconductor Materials Engineering, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Rakesh Arul
- Cavendish Laboratory, University of Cambridge JJ Thomson Avenue Cambridge CB3 0HE UK
| | - Jeremy J Baumberg
- Cavendish Laboratory, University of Cambridge JJ Thomson Avenue Cambridge CB3 0HE UK
| | - Robert L Z Hoye
- Department of Materials, Imperial College London Exhibition Road London SW7 2AZ UK
| | - Artem A Bakulin
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub 83 Wood Lane London W12 0BZ UK
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14
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Magdaleno AJ, Frisenda R, Prins F, Castellanos-Gomez A. Broadband-tunable spectral response of perovskite-on-paper photodetectors using halide mixing. NANOSCALE 2022; 14:14057-14063. [PMID: 36129322 PMCID: PMC9536486 DOI: 10.1039/d2nr02963d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 08/31/2022] [Indexed: 06/15/2023]
Abstract
Paper offers a low-cost and widely available substrate for electronics. It possesses alternative characteristics to silicon, as it shows low density and high flexibility, together with biodegradability. Solution processable materials, such as hybrid perovskites, also present light and flexible features, together with a huge tunability of the material composition with varying optical properties. In this study, we combine paper substrates with halide-mixed perovskites for the creation of low-cost and easy-to-prepare perovskite-on-paper photodetectors with a broadband-tunable spectral response. From the bandgap tunability of halide-mixed perovskites we create photodetectors with a cut-off spectral onset that ranges from the NIR to the green region, by increasing the bromide content on MAPb(I1-xBrx)3 perovskite alloys. The devices show a fast and efficient response. The best performances are observed for pure I and Br perovskite compositions, with a maximum responsivity of ∼400 mA W-1 on the MAPbBr3 device. This study provides an example of the wide range of possibilities that the combination of solution processable materials with paper substrates offers for the development of low-cost, biodegradable and easy-to-prepare devices.
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Affiliation(s)
- Alvaro J Magdaleno
- Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049 Madrid, Spain.
- Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Riccardo Frisenda
- Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC), 28049 Madrid, Spain.
- Department of Physics, Sapienza University of Rome, 00185 Rome, Italy
| | - Ferry Prins
- Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049 Madrid, Spain.
- Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, 28049 Madrid, Spain
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15
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Yao Y, Hang P, Li B, Hu Z, Kan C, Xie J, Wang Y, Zhang Y, Yang D, Yu X. Phase-Stable Wide-Bandgap Perovskites for Four-Terminal Perovskite/Silicon Tandem Solar Cells with Over 30% Efficiency. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203319. [PMID: 35896945 DOI: 10.1002/smll.202203319] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Indexed: 06/15/2023]
Abstract
Wide-bandgap perovskite solar cells (PSCs) with an optimal bandgap between 1.7 and 1.8 eV are critical to realize highly efficient and cost-competitive silicon tandem solar cells (TSCs). However, such wide-bandgap PSCs easily suffer from phase segregation, leading to performance degradation under operation. Here, it is evident that ammonium diethyldithiocarbamate (ADDC) can reduce the detrimental I2 back to I- in precursor solution, thereby reducing the density of deep level traps in perovskite films. The resultant perovskite film exhibits great phase stability under continuous illumination and 30-60% relative humidity conditions. Due to the suppression of defect proliferation and ion migration, the PSCs deliver great operation stability which retain over 90% of the initial power conversion efficiency (PCE) after 500 h maximum power point tracking. Finally, a highly efficient semitransparent PSC with a tailored bandgap of 1.77 eV, achieving a PCE approaching 18.6% with a groundbreaking open-circuit voltage (VOC ) of 1.24 V enabled by ADDC additive in perovskite films is demonstrated. Integrated with a bottom silicon solar cell, a four-terminal (4T) TSC with a PCE of 30.24% is achieved, which is one of the highest efficiencies in 4T perovskite/silicon TSCs.
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Affiliation(s)
- Yuxin Yao
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Pengjie Hang
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Biao Li
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zechen Hu
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Chenxia Kan
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jiangsheng Xie
- School of Materials, Sun Yat-sen University, Guangzhou, 510275, China
| | - Ying Wang
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yiqiang Zhang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China
| | - Deren Yang
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Xuegong Yu
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
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16
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The Effect of 600 keV Ag Ion Irradiation on the Structural, Optical, and Photovoltaic Properties of MAPbBr3 Films for Perovksite Solar Cell Applications. MATERIALS 2022; 15:ma15155299. [PMID: 35955235 PMCID: PMC9370059 DOI: 10.3390/ma15155299] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/14/2022] [Accepted: 07/20/2022] [Indexed: 11/21/2022]
Abstract
A competitive new technology, organic metallic halide perovskite solar cells feature a wide working area, low manufacturing costs, a long lifespan, and a significant amount of large efficacy of power conversion (PCE). The spin-coating technique was utilized for the fabrication of pure CH3NH3PbBr3 (MAPbBr3) thin films, and these films are implanted with 600 keV silver (Ag) ions at fluency rate of 6 × 1014 and 4 × 1014 ions/cm2. XRD analysis confirmed the cubic structure of MAPbBr3. A high grain size was observed at the fluency rate of 4 × 1014 ions/cm2. The UV-Vis spectroscopic technique was used to calculate the optical properties such as the bandgap energy (Eg), refractive index (n), extinction coefficients (k), and dielectric constant. A direct Eg of 2.44 eV was measured for the pristine film sample, whereas 2.32 and 2.36 eV were measured for Ag ion-implanted films with a 4 × 1014 and 6 × 1014 ions/cm2 fluence rate, respectively. The solar cells of these films were fabricated. The Jsc was 6.69 mA/cm2, FF was 0.80, Voc was 1.1 V, and the efficiency was 5.87% for the pristine MAPbBr3-based cell. All of these parameters were improved by Ag ion implantation. The maximum values were observed at a fluency rate of 4 × 1014 ions/cm2, where the Voc was 1.13 V, FF was 0.75, Jsc was 8.18 mA/cm2, and the efficiency was 7.01%.
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17
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Petrosova HR, Kucheriv OI, Shova S, Gural'skiy IA. Aziridinium cation templating 3D lead halide hybrid perovskites. Chem Commun (Camb) 2022; 58:5745-5748. [PMID: 35446324 DOI: 10.1039/d2cc01364a] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
This study describes the synthesis of the first aziridinium-based compounds, namely hybrid perovskites (AzrH)PbHal3 (where AzrH = aziridinium, Hal = Cl, Br or I). This highly reactive species was stabilized in 3D lead halide frameworks and was found to be a small enough organic cation to promote the formation of semiconducting organo-inorganic materials.
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Affiliation(s)
- Hanna R Petrosova
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601, Ukraine.
| | - Olesia I Kucheriv
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601, Ukraine.
| | - Sergiu Shova
- Department of Inorganic Polymers, Petru Poni Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda 41-A, Iasi 700487, Romania
| | - Il'ya A Gural'skiy
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv 01601, Ukraine.
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18
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Tong Y, Najar A, Wang L, Liu L, Du M, Yang J, Li J, Wang K, Liu S(F. Wide-Bandgap Organic-Inorganic Lead Halide Perovskite Solar Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105085. [PMID: 35257511 PMCID: PMC9109050 DOI: 10.1002/advs.202105085] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/24/2022] [Indexed: 05/14/2023]
Abstract
Under the groundswell of calls for the industrialization of perovskite solar cells (PSCs), wide-bandgap (>1.7 eV) mixed halide perovskites are equally or more appealing in comparison with typical bandgap perovskites when the former's various potential applications are taken into account. In this review, the progress of wide-bandgap organic-inorganic hybrid PSCs-concentrating on the compositional space, optimization strategies, and device performance-are summarized and the issues of phase segregation and voltage loss are assessed. Then, the diverse applications of wide-bandgap PSCs in semitransparent devices, indoor photovoltaics, and various multijunction tandem devices are discussed and their challenges and perspectives are evaluated. Finally, the authors conclude with an outlook for the future development of wide-bandgap PSCs.
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Affiliation(s)
- Yao Tong
- Faculty of Light Industry and Chemical EngineeringDalian Polytechnic UniversityDalianLiaoning116034China
| | - Adel Najar
- Department of PhysicsCollege of ScienceUnited Arab Emirates UniversityAl Ain15505United Arab Emirates
| | - Le Wang
- Faculty of Light Industry and Chemical EngineeringDalian Polytechnic UniversityDalianLiaoning116034China
| | - Lu Liu
- Dalian National Laboratory for Clean EnergyiChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023China
| | - Minyong Du
- Dalian National Laboratory for Clean EnergyiChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023China
| | - Jing Yang
- Dalian National Laboratory for Clean EnergyiChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023China
| | - Jianxun Li
- Dalian National Laboratory for Clean EnergyiChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023China
| | - Kai Wang
- Dalian National Laboratory for Clean EnergyiChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023China
| | - Shengzhong (Frank) Liu
- Dalian National Laboratory for Clean EnergyiChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023China
- Key Laboratory of Applied Surface and Colloid ChemistryMinistry of EducationShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'anShaanxi710119China
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19
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Yadav R, Roy M, Banappanavar G, Aslam M. Growth of Hybrid Perovskite Films via Single‐Source Perovskite Nanoparticle Evaporation. Chem Asian J 2022; 17:e202200087. [DOI: 10.1002/asia.202200087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Rekha Yadav
- Indian Institute of Technology Bombay Department of Physics INDIA
| | - Mrinmoy Roy
- Indian Institute of Technology Bombay Department of Physics INDIA
| | | | - M. Aslam
- Indian Institute of Technology Bombay Physics Department of PhysicsIIT Bombay Mumbai INDIA
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20
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Shao DS, Sang L, Kong YR, Deng ZR, Luo HB, Tian ZF, Ren XM. Tunable thermotropic phase transition triggering large dielectric response and superionic conduction in lead halide perovskites. Inorg Chem Front 2022. [DOI: 10.1039/d2qi01650h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lead halide perovskites show tunable structural phase transition, accompanied by large dielectric response and superionic conduction.
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Affiliation(s)
- Dong-Sheng Shao
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Lei Sang
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Ya-Ru Kong
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Zheng-Rong Deng
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Hong-Bin Luo
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Zheng-Fang Tian
- Hubei Key Laboratory for Processing and Application of Catalytic Materials, Huanggang Normal University, Huanggang 438000, P. R. China
| | - Xiao-Ming Ren
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
- State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, P. R. China
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21
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Kagdada HL, Gupta SK, Sahoo S, Singh DK. Mobility Driven Thermoelectric and Optical Properties of Two-Dimensional Halide-based Hybrid Perovskites: Impact of Organic Cation Rotation. Phys Chem Chem Phys 2022; 24:8867-8880. [DOI: 10.1039/d1cp05724c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The pivotal impact of organic cation rotation may render structural complexity in two-dimensional (2D) halide-based hybrid perovskites. The crucial role of the orientation of organic cation (MA = CH3NH3+) in...
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22
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Dey A, Ye J, De A, Debroye E, Ha SK, Bladt E, Kshirsagar AS, Wang Z, Yin J, Wang Y, Quan LN, Yan F, Gao M, Li X, Shamsi J, Debnath T, Cao M, Scheel MA, Kumar S, Steele JA, Gerhard M, Chouhan L, Xu K, Wu XG, Li Y, Zhang Y, Dutta A, Han C, Vincon I, Rogach AL, Nag A, Samanta A, Korgel BA, Shih CJ, Gamelin DR, Son DH, Zeng H, Zhong H, Sun H, Demir HV, Scheblykin IG, Mora-Seró I, Stolarczyk JK, Zhang JZ, Feldmann J, Hofkens J, Luther JM, Pérez-Prieto J, Li L, Manna L, Bodnarchuk MI, Kovalenko MV, Roeffaers MBJ, Pradhan N, Mohammed OF, Bakr OM, Yang P, Müller-Buschbaum P, Kamat PV, Bao Q, Zhang Q, Krahne R, Galian RE, Stranks SD, Bals S, Biju V, Tisdale WA, Yan Y, Hoye RLZ, Polavarapu L. State of the Art and Prospects for Halide Perovskite Nanocrystals. ACS NANO 2021; 15:10775-10981. [PMID: 34137264 PMCID: PMC8482768 DOI: 10.1021/acsnano.0c08903] [Citation(s) in RCA: 332] [Impact Index Per Article: 110.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 05/04/2021] [Indexed: 05/10/2023]
Abstract
Metal-halide perovskites have rapidly emerged as one of the most promising materials of the 21st century, with many exciting properties and great potential for a broad range of applications, from photovoltaics to optoelectronics and photocatalysis. The ease with which metal-halide perovskites can be synthesized in the form of brightly luminescent colloidal nanocrystals, as well as their tunable and intriguing optical and electronic properties, has attracted researchers from different disciplines of science and technology. In the last few years, there has been a significant progress in the shape-controlled synthesis of perovskite nanocrystals and understanding of their properties and applications. In this comprehensive review, researchers having expertise in different fields (chemistry, physics, and device engineering) of metal-halide perovskite nanocrystals have joined together to provide a state of the art overview and future prospects of metal-halide perovskite nanocrystal research.
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Grants
- from U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division
- Ministry of Education, Culture, Sports, Science and Technology
- European Research Council under the European Unionâ??s Horizon 2020 research and innovation programme (HYPERION)
- Ministry of Education - Singapore
- FLAG-ERA JTC2019 project PeroGas.
- Deutsche Forschungsgemeinschaft
- Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences of the U.S. Department of Energy
- EPSRC
- iBOF funding
- Agencia Estatal de Investigaci�ón, Ministerio de Ciencia, Innovaci�ón y Universidades
- National Research Foundation Singapore
- National Natural Science Foundation of China
- Croucher Foundation
- US NSF
- Fonds Wetenschappelijk Onderzoek
- National Science Foundation
- Royal Society and Tata Group
- Department of Science and Technology, Ministry of Science and Technology
- Swiss National Science Foundation
- Natural Science Foundation of Shandong Province, China
- Research 12210 Foundation?Flanders
- Japan International Cooperation Agency
- Ministry of Science and Innovation of Spain under Project STABLE
- Generalitat Valenciana via Prometeo Grant Q-Devices
- VetenskapsrÃÂ¥det
- Natural Science Foundation of Jiangsu Province
- KU Leuven
- Knut och Alice Wallenbergs Stiftelse
- Generalitat Valenciana
- Agency for Science, Technology and Research
- Ministerio de EconomÃÂa y Competitividad
- Royal Academy of Engineering
- Hercules Foundation
- China Association for Science and Technology
- U.S. Department of Energy
- Alexander von Humboldt-Stiftung
- Wenner-Gren Foundation
- Welch Foundation
- Vlaamse regering
- European Commission
- Bayerisches Staatsministerium für Wissenschaft, Forschung und Kunst
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Affiliation(s)
- Amrita Dey
- Chair for
Photonics and Optoelectronics, Nano-Institute Munich, Department of
Physics, Ludwig-Maximilians-Universität
(LMU), Königinstrasse 10, 80539 Munich, Germany
| | - Junzhi Ye
- Cavendish
Laboratory, University of Cambridge, 19 JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Apurba De
- School of
Chemistry, University of Hyderabad, Hyderabad 500 046, India
| | - Elke Debroye
- Department
of Chemistry, KU Leuven, 3001 Leuven, Belgium
| | - Seung Kyun Ha
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
| | - Eva Bladt
- EMAT, University
of Antwerp, Groenenborgerlaan
171, 2020 Antwerp, Belgium
- NANOlab Center
of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Anuraj S. Kshirsagar
- Department
of Chemistry, Indian Institute of Science
Education and Research (IISER), Pune 411008, India
| | - Ziyu Wang
- School
of
Science and Technology for Optoelectronic Information ,Yantai University, Yantai, Shandong Province 264005, China
| | - Jun Yin
- Division
of Physical Science and Engineering, King
Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
- CINBIO,
Universidade de Vigo, Materials Chemistry
and Physics group, Departamento de Química Física, Campus Universitario As Lagoas,
Marcosende, 36310 Vigo, Spain
- Advanced
Membranes and Porous Materials Center, King
Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Yue Wang
- MIIT Key
Laboratory of Advanced Display Materials and Devices, Institute of
Optoelectronics & Nanomaterials, College of Materials Science
and Engineering, Nanjing University of Science
and Technology, Nanjing 210094, China
| | - Li Na Quan
- Department
of Chemistry, University of California,
Berkeley, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Fei Yan
- LUMINOUS!
Center of Excellence for Semiconductor Lighting and Displays, TPI-The
Photonics Institute, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798
| | - Mengyu Gao
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
- Department
of Materials Science and Engineering, University
of California, Berkeley, California 94720, United States
| | - Xiaoming Li
- MIIT Key
Laboratory of Advanced Display Materials and Devices, Institute of
Optoelectronics & Nanomaterials, College of Materials Science
and Engineering, Nanjing University of Science
and Technology, Nanjing 210094, China
| | - Javad Shamsi
- Cavendish
Laboratory, University of Cambridge, 19 JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Tushar Debnath
- Chair for
Photonics and Optoelectronics, Nano-Institute Munich, Department of
Physics, Ludwig-Maximilians-Universität
(LMU), Königinstrasse 10, 80539 Munich, Germany
| | - Muhan Cao
- Institute
of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory
for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Manuel A. Scheel
- Lehrstuhl
für Funktionelle Materialien, Physik Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Sudhir Kumar
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH-Zurich, CH-8093 Zürich, Switzerland
| | - Julian A. Steele
- MACS Department
of Microbial and Molecular Systems, KU Leuven, 3001 Leuven, Belgium
| | - Marina Gerhard
- Chemical
Physics and NanoLund Lund University, PO Box 124, 22100 Lund, Sweden
| | - Lata Chouhan
- Graduate
School of Environmental Science and Research Institute for Electronic
Science, Hokkaido University, Sapporo, Hokkaido 001-0020, Japan
| | - Ke Xu
- Department
of Chemistry and Biochemistry, University
of California, Santa Cruz, California 95064, United States
- Multiscale
Crystal Materials Research Center, Shenzhen Institute of Advanced
Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xian-gang Wu
- Beijing
Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems,
School of Materials Science & Engineering, Beijing Institute of Technology, 5 Zhongguancun South Street, Haidian
District, Beijing 100081, China
| | - Yanxiu Li
- Department
of Materials Science and Engineering, and Centre for Functional Photonics
(CFP), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R.
| | - Yangning Zhang
- McKetta
Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712-1062, United States
| | - Anirban Dutta
- School
of Materials Sciences, Indian Association
for the Cultivation of Science, Kolkata 700032, India
| | - Chuang Han
- Department
of Chemistry and Biochemistry, San Diego
State University, San Diego, California 92182, United States
| | - Ilka Vincon
- Chair for
Photonics and Optoelectronics, Nano-Institute Munich, Department of
Physics, Ludwig-Maximilians-Universität
(LMU), Königinstrasse 10, 80539 Munich, Germany
| | - Andrey L. Rogach
- Department
of Materials Science and Engineering, and Centre for Functional Photonics
(CFP), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R.
| | - Angshuman Nag
- Department
of Chemistry, Indian Institute of Science
Education and Research (IISER), Pune 411008, India
| | - Anunay Samanta
- School of
Chemistry, University of Hyderabad, Hyderabad 500 046, India
| | - Brian A. Korgel
- McKetta
Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712-1062, United States
| | - Chih-Jen Shih
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH-Zurich, CH-8093 Zürich, Switzerland
| | - Daniel R. Gamelin
- Department
of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Dong Hee Son
- Department
of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Haibo Zeng
- MIIT Key
Laboratory of Advanced Display Materials and Devices, Institute of
Optoelectronics & Nanomaterials, College of Materials Science
and Engineering, Nanjing University of Science
and Technology, Nanjing 210094, China
| | - Haizheng Zhong
- Beijing
Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems,
School of Materials Science & Engineering, Beijing Institute of Technology, 5 Zhongguancun South Street, Haidian
District, Beijing 100081, China
| | - Handong Sun
- Division
of Physics and Applied Physics, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371
- Centre
for Disruptive Photonic Technologies (CDPT), Nanyang Technological University, Singapore 637371
| | - Hilmi Volkan Demir
- LUMINOUS!
Center of Excellence for Semiconductor Lighting and Displays, TPI-The
Photonics Institute, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798
- Division
of Physics and Applied Physics, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 639798
- Department
of Electrical and Electronics Engineering, Department of Physics,
UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Ivan G. Scheblykin
- Chemical
Physics and NanoLund Lund University, PO Box 124, 22100 Lund, Sweden
| | - Iván Mora-Seró
- Institute
of Advanced Materials (INAM), Universitat
Jaume I, 12071 Castelló, Spain
| | - Jacek K. Stolarczyk
- Chair for
Photonics and Optoelectronics, Nano-Institute Munich, Department of
Physics, Ludwig-Maximilians-Universität
(LMU), Königinstrasse 10, 80539 Munich, Germany
| | - Jin Z. Zhang
- Department
of Chemistry and Biochemistry, University
of California, Santa Cruz, California 95064, United States
| | - Jochen Feldmann
- Chair for
Photonics and Optoelectronics, Nano-Institute Munich, Department of
Physics, Ludwig-Maximilians-Universität
(LMU), Königinstrasse 10, 80539 Munich, Germany
| | - Johan Hofkens
- Department
of Chemistry, KU Leuven, 3001 Leuven, Belgium
- Max Planck
Institute for Polymer Research, Mainz 55128, Germany
| | - Joseph M. Luther
- National
Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Julia Pérez-Prieto
- Institute
of Molecular Science, University of Valencia, c/Catedrático José
Beltrán 2, Paterna, Valencia 46980, Spain
| | - Liang Li
- School
of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Liberato Manna
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy
| | - Maryna I. Bodnarchuk
- Institute
of Inorganic Chemistry and § Institute of Chemical and Bioengineering,
Department of Chemistry and Applied Bioscience, ETH Zurich, Vladimir
Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa−Swiss
Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Maksym V. Kovalenko
- Institute
of Inorganic Chemistry and § Institute of Chemical and Bioengineering,
Department of Chemistry and Applied Bioscience, ETH Zurich, Vladimir
Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa−Swiss
Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | | | - Narayan Pradhan
- School
of Materials Sciences, Indian Association
for the Cultivation of Science, Kolkata 700032, India
| | - Omar F. Mohammed
- Advanced
Membranes and Porous Materials Center, King
Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
- KAUST Catalysis
Center, King Abdullah University of Science
and Technology, Thuwal 23955-6900, Kingdom of Saudi
Arabia
| | - Osman M. Bakr
- Division
of Physical Science and Engineering, King
Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
- Advanced
Membranes and Porous Materials Center, King
Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Peidong Yang
- Department
of Chemistry, University of California,
Berkeley, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
- Department
of Materials Science and Engineering, University
of California, Berkeley, California 94720, United States
- Kavli
Energy NanoScience Institute, Berkeley, California 94720, United States
| | - Peter Müller-Buschbaum
- Lehrstuhl
für Funktionelle Materialien, Physik Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
- Heinz Maier-Leibnitz
Zentrum (MLZ), Technische Universität
München, Lichtenbergstr. 1, D-85748 Garching, Germany
| | - Prashant V. Kamat
- Notre Dame
Radiation Laboratory, Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Qiaoliang Bao
- Department
of Materials Science and Engineering and ARC Centre of Excellence
in Future Low-Energy Electronics Technologies (FLEET), Monash University, Clayton, Victoria 3800, Australia
| | - Qiao Zhang
- Institute
of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory
for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Roman Krahne
- Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Raquel E. Galian
- School
of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Samuel D. Stranks
- Cavendish
Laboratory, University of Cambridge, 19 JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, United Kingdom
| | - Sara Bals
- EMAT, University
of Antwerp, Groenenborgerlaan
171, 2020 Antwerp, Belgium
- NANOlab Center
of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Vasudevanpillai Biju
- Graduate
School of Environmental Science and Research Institute for Electronic
Science, Hokkaido University, Sapporo, Hokkaido 001-0020, Japan
| | - William A. Tisdale
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
| | - Yong Yan
- Department
of Chemistry and Biochemistry, San Diego
State University, San Diego, California 92182, United States
| | - Robert L. Z. Hoye
- Department
of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Lakshminarayana Polavarapu
- Chair for
Photonics and Optoelectronics, Nano-Institute Munich, Department of
Physics, Ludwig-Maximilians-Universität
(LMU), Königinstrasse 10, 80539 Munich, Germany
- CINBIO,
Universidade de Vigo, Materials Chemistry
and Physics group, Departamento de Química Física, Campus Universitario As Lagoas,
Marcosende, 36310 Vigo, Spain
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23
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Neumann T, Feldmann S, Moser P, Delhomme A, Zerhoch J, van de Goor T, Wang S, Dyksik M, Winkler T, Finley JJ, Plochocka P, Brandt MS, Faugeras C, Stier AV, Deschler F. Manganese doping for enhanced magnetic brightening and circular polarization control of dark excitons in paramagnetic layered hybrid metal-halide perovskites. Nat Commun 2021; 12:3489. [PMID: 34108469 PMCID: PMC8190121 DOI: 10.1038/s41467-021-23602-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 05/05/2021] [Indexed: 02/05/2023] Open
Abstract
Materials combining semiconductor functionalities with spin control are desired for the advancement of quantum technologies. Here, we study the magneto-optical properties of novel paramagnetic Ruddlesden-Popper hybrid perovskites Mn:(PEA)2PbI4 (PEA = phenethylammonium) and report magnetically brightened excitonic luminescence with strong circular polarization from the interaction with isolated Mn2+ ions. Using a combination of superconducting quantum interference device (SQUID) magnetometry, magneto-absorption and transient optical spectroscopy, we find that a dark exciton population is brightened by state mixing with the bright excitons in the presence of a magnetic field. Unexpectedly, the circular polarization of the dark exciton luminescence follows the Brillouin-shaped magnetization with a saturation polarization of 13% at 4 K and 6 T. From high-field transient magneto-luminescence we attribute our observations to spin-dependent exciton dynamics at early times after excitation, with first indications for a Mn-mediated spin-flip process. Our findings demonstrate manganese doping as a powerful approach to control excitonic spin physics in Ruddlesden-Popper perovskites, which will stimulate research on this highly tuneable material platform with promise for tailored interactions between magnetic moments and excitonic states.
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Affiliation(s)
- Timo Neumann
- Cavendish Laboratory, University of Cambridge, Cambridge, UK
- Walter Schottky Institut and Physik Department, Technische Universität München, Garching, Germany
| | - Sascha Feldmann
- Cavendish Laboratory, University of Cambridge, Cambridge, UK
| | - Philipp Moser
- Walter Schottky Institut and Physik Department, Technische Universität München, Garching, Germany
| | - Alex Delhomme
- Université Grenoble Alpes, INSA Toulouse, Univ. Toulouse Paul Sabatier, EMFL, CNRS, LNCMI, Grenoble, France
| | - Jonathan Zerhoch
- Walter Schottky Institut and Physik Department, Technische Universität München, Garching, Germany
| | - Tim van de Goor
- Cavendish Laboratory, University of Cambridge, Cambridge, UK
| | - Shuli Wang
- Laboratoire National des Champs Magnétiques Intenses, UPR 3228, CNRS-UGA-UPS-INSA, Grenoble and Toulouse, France
| | - Mateusz Dyksik
- Laboratoire National des Champs Magnétiques Intenses, UPR 3228, CNRS-UGA-UPS-INSA, Grenoble and Toulouse, France
- Department of Experimental Physics, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wroclaw, Poland
| | - Thomas Winkler
- Cavendish Laboratory, University of Cambridge, Cambridge, UK
| | - Jonathan J Finley
- Walter Schottky Institut and Physik Department, Technische Universität München, Garching, Germany
| | - Paulina Plochocka
- Laboratoire National des Champs Magnétiques Intenses, UPR 3228, CNRS-UGA-UPS-INSA, Grenoble and Toulouse, France
- Department of Experimental Physics, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wroclaw, Poland
| | - Martin S Brandt
- Walter Schottky Institut and Physik Department, Technische Universität München, Garching, Germany
| | - Clément Faugeras
- Université Grenoble Alpes, INSA Toulouse, Univ. Toulouse Paul Sabatier, EMFL, CNRS, LNCMI, Grenoble, France
| | - Andreas V Stier
- Walter Schottky Institut and Physik Department, Technische Universität München, Garching, Germany
| | - Felix Deschler
- Walter Schottky Institut and Physik Department, Technische Universität München, Garching, Germany.
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24
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Younis A, Lin CH, Guan X, Shahrokhi S, Huang CY, Wang Y, He T, Singh S, Hu L, Retamal JRD, He JH, Wu T. Halide Perovskites: A New Era of Solution-Processed Electronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005000. [PMID: 33938612 DOI: 10.1002/adma.202005000] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/29/2020] [Indexed: 05/26/2023]
Abstract
Organic-inorganic mixed halide perovskites have emerged as an excellent class of materials with a unique combination of optoelectronic properties, suitable for a plethora of applications ranging from solar cells to light-emitting diodes and photoelectrochemical devices. Recent works have showcased hybrid perovskites for electronic applications through improvements in materials design, processing, and device stability. Herein, a comprehensive up-to-date review is presented on hybrid perovskite electronics with a focus on transistors and memories. These applications are supported by the fundamental material properties of hybrid perovskite semiconductors such as tunable bandgap, ambipolar charge transport, reasonable mobility, defect characteristics, and solution processability, which are highlighted first. Then, recent progresses on perovskite-based transistors are reviewed, covering aspects of fabrication process, patterning techniques, contact engineering, 2D versus 3D material selection, and device performance. Furthermore, applications of perovskites in nonvolatile memories and artificial synaptic devices are presented. The ambient instability of hybrid perovskites and the strategies to tackle this bottleneck are also discussed. Finally, an outlook and opportunities to develop perovskite-based electronics as a competitive and feasible technology are highlighted.
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Affiliation(s)
- Adnan Younis
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
- Department of Physics, College of Science, University of Bahrain, P.O. Box 32038, Sakhir Campus, Zallaq, Kingdom of Bahrain
| | - Chun-Ho Lin
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Xinwei Guan
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Shamim Shahrokhi
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Chien-Yu Huang
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Yutao Wang
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Tengyue He
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Simrjit Singh
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Long Hu
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Jose Ramon Duran Retamal
- Computer, Electrical and Mathematical Sciences and Engineering, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Jr-Hau He
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China
| | - Tom Wu
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
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25
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Haque F, Bukke RN, Mativenga M. Reduction of Hysteresis in Hybrid Perovskite Transistors by Solvent-Controlled Growth. MATERIALS 2021; 14:ma14102573. [PMID: 34063461 PMCID: PMC8156281 DOI: 10.3390/ma14102573] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/07/2021] [Accepted: 05/13/2021] [Indexed: 11/28/2022]
Abstract
The effect of crystallization process speed on the morphology of solution-processed methyl ammonium lead iodide (MAPbI3) thin films is investigated. Crystallization speed is controlled by varying the number of annealing steps, temperature, and resting time between steps. The resting period allows solvent-controlled growth (SCG) in which crystallization progresses slowly via an intermediate phase—during which solvents slowly evaporate away from the films. SCG results in fewer residues, fewer pinholes, and larger grain sizes. Consequently, thin-film transistors with SCG MAPbI3 exhibit smaller hysteresis in their current-voltage characteristics than those without, demonstrating the benefits of SCG toward hysteresis-free perovskite devices.
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26
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Defect suppression and photoresponsivity enhancement in methylammonium lead halide perovskites by CdSe/ZnS quantum dots. J Colloid Interface Sci 2021; 590:19-27. [PMID: 33524717 DOI: 10.1016/j.jcis.2021.01.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 01/07/2021] [Accepted: 01/13/2021] [Indexed: 11/24/2022]
Abstract
Potential strategies such as surface passivation and perovskite material halide mixing may protect material surfaces, improve luminescence, and reduce charge traps for device stability. In this study, we used deep level transient spectroscopy to investigate the effect of CdSe/ZnS core-shell quantum dots (QDs) on defect states and carrier transport in methylammonium (MA) lead halide perovskites (CH3NH3PbX3 where X = I, Br). In MAPbI3 and MAPbI2Br films with CdSe/ZnS QDs, the density of hole traps located at Ev + 0.37 eV and Ev + 0.56 eV was reduced dramatically. Deep traps at Ev + 0.78 eV and Ev + 1.08 eV were removed, and one broad electron trap signal dominated. Film photoresponsivity under 600-nm wavelength light and a bias voltage of -0.7 V was 10 and 18 mA/W, which is 100 and 27 times larger than the 0.1 and 0.67 mA/W of bare perovskites (PS), respectively. This demonstrates that carrier transport was enhanced due to defect suppression. Our findings on defect suppression and photoresponsivity enhancement provide an important direction for optimizing high-performance PS device fabrication.
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27
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Polymer Additive Assisted Fabrication of Compact and Ultra-Smooth Perovskite Thin Films with Fast Lamp Annealing. ENERGIES 2021. [DOI: 10.3390/en14092656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Perovskite solar cells (PVSC) have drawn increasing attention due to their high photovoltaic performance and low-cost fabrication with solution processability. A variety of methods have been developed to make uniform and dense perovskite thin films, which play a critical role on device performance. Herein, we demonstrate a polymer additive assisted approach with Polyamidoamine (PAMAM) dendrimers to facilitate the growth of uniform, dense, and ultra-smooth perovskite thin films. Furthermore, a lamp annealing approach has been developed to rapidly anneal perovskite films using an incandescent lamp, resulting in comparable or even better device performance compared to the control hotplate annealing. The facile polymer additive assisted method and the rapid lamp annealing technique offer a clue for the large-scale fabrication of efficient PVSCs.
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28
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Quarti C, Furet E, Katan C. DFT Simulations as Valuable Tool to Support NMR Characterization of Halide Perovskites: the Case of Pure and Mixed Halide Perovskites. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202000231] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Claudio Quarti
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR Institut des Sciences Chimiques de Rennes)-UMR 6226 FR-35000 Rennes France
- University of Mons Laboratory for Chemistry of Novel Materials BE-7000 Mons Belgium
| | - Eric Furet
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR Institut des Sciences Chimiques de Rennes)-UMR 6226 FR-35000 Rennes France
| | - Claudine Katan
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR Institut des Sciences Chimiques de Rennes)-UMR 6226 FR-35000 Rennes France
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29
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Regalado-Pérez E, Díaz-Cruz EB, Landa-Bautista J, Mathews NR, Mathew X. Impact of Vertical Inhomogeneity on the Charge Extraction in Perovskite Solar Cells: A Study by Depth-Dependent Photoluminescence. ACS APPLIED MATERIALS & INTERFACES 2021; 13:11833-11844. [PMID: 33651611 DOI: 10.1021/acsami.0c20826] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In perovskite solar cells (PSCs), the vertical inhomogeneities which include uneven grains, voids, and grain boundaries are closely linked to the underlying charge transport layer which controls the nucleation and grain growth in the perovskite film. Herein, the vertical inhomogeneity of perovskite films in the device structure is analyzed by depth-dependent photoluminescence (PL) achieved with different excitation wavelengths. An analytical representation between vertical inhomogeneity and depth-dependent PL, parametrized with a factor, b, is introduced to understand the relation between inhomogeneity and charge recombination. Lower values of b correlate to lower vertical inhomogeneity and hence reduced recombination. The analytical representation is validated in two sets of devices that show remarkable differences in perovskite film morphology, device based on mesoporous TiO2 and planar SnO2. By exploring the morphological properties and the PL emission from different depths across the device structures, we show that the lower vertical inhomogeneity leads to more efficient charge carrier extraction in planar SnO2-based devices. Moreover, the SnO2-based devices exhibit lower Urbach energy, which concurs with the slow transient photovoltage decay, suggesting less defects and recombination losses. This work provides a broader understanding of the impact of vertical inhomogeneity on the charge extraction efficiency and presents a methodology to study quantitatively the inhomogeneity of perovskite films in device structures.
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Affiliation(s)
- E Regalado-Pérez
- Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Temixco, Morelos 62580, México
| | - Evelyn B Díaz-Cruz
- Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Temixco, Morelos 62580, México
| | - J Landa-Bautista
- Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Temixco, Morelos 62580, México
| | - N R Mathews
- Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Temixco, Morelos 62580, México
| | - X Mathew
- Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Temixco, Morelos 62580, México
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30
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Guo X, Ngai K, Qin M, Lu X, Xu J, Long M. The compatibility of methylammonium and formamidinium in mixed cation perovskite: the optoelectronic and stability properties. NANOTECHNOLOGY 2021; 32:075406. [PMID: 33108782 DOI: 10.1088/1361-6528/abc50c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The methylammonium (MA) and formamidinium (FA) are the most commonly used organic cations in perovskite solar cells (PSCs), whereas the impact of size and polarity differences between these two on the photovoltaic performances has been rarely revealed. Herein, we systematically investigated the phase distribution, optoelectronic and stability properties of FA-MA mixed perovskites. To identify the phase homogeneity, depth-dependent grazing-incidence wide-angle x-ray scattering measurements were employed, which demonstrates that the mixed cation perovskite possesses a FA-rich phase on the film surface and the bottom is comprised of MA-rich phase. Additionally, upon long-time illumination, a new PL peak is appeared at 778 nm, representing the generation of MA-rich phase induced by ion migration. It is worth noting that the phase splitting and inhomogeneous phase distribution would not bring any obvious detrimental effects to the photovoltaic performances and stability properties. Through judiciously tuning the cation proportion in pure-iodide perovskite, the additive-free PSCs achieve an efficiency as high as 20.7%. Furthermore, the PSCs with a broad range of FA/MA ratios show improved humidity/thermal/light stability despite the phase inhomogeneity. Therefore, the work shows that the MA and FA cations have a high compatibility in perovskite structure and the precise ratio control can further improve the performances.
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Affiliation(s)
- Xinlu Guo
- Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, New Territories, 999077, Hong Kong, People's Republic of China
| | - Kwanho Ngai
- Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, New Territories, 999077, Hong Kong, People's Republic of China
| | - Minchao Qin
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, 999077, Hong Kong, People's Republic of China
| | - Xinhu Lu
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, 999077, Hong Kong, People's Republic of China
| | - Jianbin Xu
- Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, New Territories, 999077, Hong Kong, People's Republic of China
| | - Mingzhu Long
- Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, New Territories, 999077, Hong Kong, People's Republic of China
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, People's Republic of China
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31
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Roy M, Dedhia U, Alam A, Aslam M. Spontaneous Ion Migration via Mechanochemical Ultrasonication in Mixed Halide Perovskite Phase Formation: Experimental and Theoretical Insights. J Phys Chem Lett 2021; 12:1189-1194. [PMID: 33480705 DOI: 10.1021/acs.jpclett.0c03426] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We present a simple yet powerful synthesis process to prepare compound-phase perovskite nanoparticles (MAPbX3-nYn; MA = CH3NH3+ and X/Y = I, Br, or Cl). This is achieved by mixing two pure-phase perovskites (MAPbX3 and MAPbY3) by using ultrasonic vibration as a mechanochemical excitation. Unlike conventional methods, this procedure does not require any effort in designing a reaction or choosing any particular precursor. X-ray diffraction and TEM studies confirm compound-phase formation in all possible stoichiometries. The origin behind ultrasonic mixing lies in the generation of mechanical stress and high temperature arising from acoustic cavitation during reaction. Long-term experimental stability of the compound-phase is comprehended theoretically by simulating the temperature-dependent Gibbs free energy. Negative mixing entropy plays a crucial role during the synthesis which leads to better stabilization of the compound-phase perovskite over the pure-phase. The ease of synthesis and remarkable phase stability make this process effective and less cumbersome for perovskite nanoparticle synthesis.
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Affiliation(s)
- Mrinmoy Roy
- Department of Physics, Indian Institute of Technology Bombay, Mumbai, India 400076
| | - Urvi Dedhia
- Department of Physics, Indian Institute of Technology Bombay, Mumbai, India 400076
| | - Aftab Alam
- Materials Modelling Group, Department of Physics, Indian Institute of Technology Bombay, Mumbai, India 400076
| | - M Aslam
- Department of Physics, Indian Institute of Technology Bombay, Mumbai, India 400076
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32
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Tong J, Jiang Q, Zhang F, Kang SB, Kim DH, Zhu K. Wide-Bandgap Metal Halide Perovskites for Tandem Solar Cells. ACS ENERGY LETTERS 2021; 6:232-248. [PMID: 38533481 PMCID: PMC10961837 DOI: 10.1021/acsenergylett.0c02105] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Metal halide perovskite solar cells (PSCs) have become the most promising new-generation solar cell technology. To date, perovskites also represent the only polycrystalline thin-film absorber technology that has enabled >20% efficiency for wide-bandgap solar cells, making wide-bandgap PSCs uniquely positioned to enable high-efficiency and low-cost tandem solar cell technologies by coupling wide-bandgap perovskites with low-bandgap absorbers. In this Focus Review, we highlight recent research progress on developing wide-bandgap PSCs, including the key mechanisms associated with efficiency loss and instability as well as strategies for overcoming these challenges. We also discuss recent accomplishments and research trends on using wide-bandgap PSCs in perovskite-based tandem configurations, including perovskite/perovskite, perovskite/Si, perovskite/CIGS, and other emerging tandem technologies.
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Affiliation(s)
- Jinhui Tong
- Chemistry
and Nanoscience Center, National Renewable
Energy Laboratory, Golden, Colorado 80401, United States
| | - Qi Jiang
- Chemistry
and Nanoscience Center, National Renewable
Energy Laboratory, Golden, Colorado 80401, United States
| | - Fei Zhang
- Chemistry
and Nanoscience Center, National Renewable
Energy Laboratory, Golden, Colorado 80401, United States
| | - Seok Beom Kang
- Department
of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea
| | - Dong Hoe Kim
- Department
of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea
| | - Kai Zhu
- Chemistry
and Nanoscience Center, National Renewable
Energy Laboratory, Golden, Colorado 80401, United States
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Atourki L, Ouafi M, Makha M, Mari B, Regragui M, Ihlal A, Abd-lefdil M, Mollar M. Impact of Li doping on the photophysical properties of perovskite absorber layer FAPbI3. JOURNAL OF ALLOYS AND COMPOUNDS 2021; 850:156696. [DOI: 10.1016/j.jallcom.2020.156696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Cheng L, Yi C, Tong Y, Zhu L, Kusch G, Wang X, Wang X, Jiang T, Zhang H, Zhang J, Xue C, Chen H, Xu W, Liu D, Oliver RA, Friend RH, Zhang L, Wang N, Huang W, Wang J. Halide Homogenization for High-Performance Blue Perovskite Electroluminescence. RESEARCH 2020; 2020:9017871. [PMID: 33623912 PMCID: PMC7877380 DOI: 10.34133/2020/9017871] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 10/14/2020] [Indexed: 11/28/2022]
Abstract
Metal halide perovskite light-emitting diodes (LEDs) have achieved great progress in recent years. However, bright and spectrally stable blue perovskite LED remains a significant challenge. Three-dimensional mixed-halide perovskites have potential to achieve high brightness electroluminescence, but their emission spectra are unstable as a result of halide phase separation. Here, we reveal that there is already heterogeneous distribution of halides in the as-deposited perovskite films, which can trace back to the nonuniform mixture of halides in the precursors. By simply introducing cationic surfactants to improve the homogeneity of the halides in the precursor solution, we can overcome the phase segregation issue and obtain spectrally stable single-phase blue-emitting perovskites. We demonstrate efficient blue perovskite LEDs with high brightness, e.g., luminous efficacy of 4.7, 2.9, and 0.4 lm W−1 and luminance of over 37,000, 9,300, and 1,300 cd m−2 for sky blue, blue, and deep blue with Commission Internationale de l'Eclairage (CIE) coordinates of (0.068, 0.268), (0.091, 0.165), and (0.129, 0.061), respectively, suggesting real promise of perovskites for LED applications.
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Affiliation(s)
- Lu Cheng
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Chang Yi
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Yunfang Tong
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Lin Zhu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Gunnar Kusch
- Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, UK
| | - Xiaoyu Wang
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Automobile Materials of MOE and College of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Xinjiang Wang
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Automobile Materials of MOE and College of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Tao Jiang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Hao Zhang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Ju Zhang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Chen Xue
- Frontiers Science Center for Flexible Electronics (FSCFE) & Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, China
| | - Hong Chen
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Wenjie Xu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Dawei Liu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Rachel A Oliver
- Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, UK
| | - Richard H Friend
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
| | - Lijun Zhang
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Automobile Materials of MOE and College of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Nana Wang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.,Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
| | - Wei Huang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.,Frontiers Science Center for Flexible Electronics (FSCFE) & Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, China
| | - Jianpu Wang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
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Sung J, Macpherson S, Rao A. Enhanced Ballistic Transport of Charge Carriers in Alloyed and K-Passivated Alloyed Perovskite Thin Films. J Phys Chem Lett 2020; 11:5402-5406. [PMID: 32544335 PMCID: PMC7467737 DOI: 10.1021/acs.jpclett.0c01548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 06/16/2020] [Indexed: 05/19/2023]
Abstract
Hybrid organic-inorganic perovskites show remarkable charge transport properties despite their deposition via low-temperature solution phase methods. It has recently been shown that this includes the ballistic transport of charges following photoexcitation, with ballistic transport lengths as large as 150 nm measured in MAPI3 films, which is almost twice the value reported for GaAs. Here we explore the ballistic transport regime in high-performance triple-cation and K-passivated triple-cation perovskite films, using femtosecond transient absorption microscopy, which allows us to image carrier motion with 10 fs temporal resolution and 10 nm spatial precision. We observe ballistic transport lengths of 160 and 220 nm in triple-cation and K-passivated triple-cation perovskite films, respectively. We propose that the ballistic transport is limited by nanoscale trap clusters at grain boundaries and interfaces, which can be passivated via chemical treatments to enhance the ballistic transport length, which implies that further enhancements are possible as passivation methods are improved.
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Rehermann C, Merdasa A, Suchan K, Schröder V, Mathies F, Unger EL. Origin of Ionic Inhomogeneity in MAPb(I xBr 1-x) 3 Perovskite Thin Films Revealed by In-Situ Spectroscopy during Spin Coating and Annealing. ACS APPLIED MATERIALS & INTERFACES 2020; 12:30343-30352. [PMID: 32510922 DOI: 10.1021/acsami.0c05894] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Irradiation-induced phase segregation in mixed methylammonium halide perovskite samples such as methylammonium lead bromide-iodide, MAPb(IxBr1-x)3, is being studied intensively because it limits the efficiency of wide band gap perovskite solar cells. It has been postulated that this phenomenon depends on the intrinsic ionic (in)homogeneity in samples already induced during film formation. A deeper understanding of the MAPb(IxBr1-x)3 formation processes and the influence of the halide ratio, solvents, and the perovskite precursor composition as well as the influence of processing parameters during deposition, e.g., spin coating and annealing parameters, is still lacking. Here, we use a fiber optic-based optical in-situ setup to study the formation processes of the MAPb(IxBr1-x)3 series on a subsecond time scale during spin coating and thermal annealing. In-situ UV-vis measurements during spin coating reveal the influence of different halide ratios, x, in the precursor solution on the preferential crystallization of the phase. Pure bromide samples directly form a perovskite phase, samples with high iodide content form a solvate intermediate phase, and samples with a mixed stoichiometry between 0.1 ≤ x ≤ 0.6 form both. This leads to a heterogeneous formation process via two competing reaction pathways, that leads to a heterogeneous mixture of phases, during spin coating and rationalizes the compositional heterogeneity of mixed bromide-iodide samples even after annealing.
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Affiliation(s)
- Carolin Rehermann
- Young Investigator Group Hybrid Materials Formation and Scaling, HySPRINT Innovation Lab, Helmholtz-Zentrum Berlin für Materialen und Energie GmbH, Kekuléstraße 5, 12489 Berlin, Germany
| | - Aboma Merdasa
- Young Investigator Group Hybrid Materials Formation and Scaling, HySPRINT Innovation Lab, Helmholtz-Zentrum Berlin für Materialen und Energie GmbH, Kekuléstraße 5, 12489 Berlin, Germany
- Department of Physics, Lund University, Sölvegatan 14, 22362 Lund, Sweden
| | - Klara Suchan
- Chemical Physics and NanoLund, Lund University, PO Box 118, 22100 Lund, Sweden
| | - Vincent Schröder
- Institut für Physik, Institut für Chemie, IRIS Adlershof, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
| | - Florian Mathies
- Young Investigator Group Hybrid Materials Formation and Scaling, HySPRINT Innovation Lab, Helmholtz-Zentrum Berlin für Materialen und Energie GmbH, Kekuléstraße 5, 12489 Berlin, Germany
| | - Eva L Unger
- Young Investigator Group Hybrid Materials Formation and Scaling, HySPRINT Innovation Lab, Helmholtz-Zentrum Berlin für Materialen und Energie GmbH, Kekuléstraße 5, 12489 Berlin, Germany
- Chemical Physics and NanoLund, Lund University, PO Box 118, 22100 Lund, Sweden
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Wang Z, Cai B, Ren Y, Wang W, Feng L, Zhang S, Wang Y. Transferable High-Quality Inorganic Perovskites for Optoelectronic Devices by Weak Interaction Heteroepitaxy. ACS APPLIED MATERIALS & INTERFACES 2020; 12:19674-19681. [PMID: 32270993 DOI: 10.1021/acsami.0c03044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Transferable semiconductors with superior light-emitting properties are important for developing flexible and integrated optoelectronics. However, finding such a qualified candidate remains challenging. Here, we report the fabrication of transferable high-quality CsPbBr3 single crystals on a highly oriented pyrolytic graphite (HOPG) substrate via weak interaction heteroepitaxy for the first time. Semi-quantitative kinetic analysis based on the classical nucleation theory well accounts for the van der Waals (vdW) epitaxial growth process of perovskite on the HOPG substrate. The density functional theory calculations illustrate the bonding nature of the interface and predict the Volmer-Weber growth mode in vdW epitaxy, which is consistent with our experimental observations. Importantly, the extremely weak vdW interaction between the perovskite and HOPG not only enables the high quality of the crystals but also endows them with the facile transferability to any foreign substrate by the mechanical exfoliation technique. Leveraging on the transferred CsPbBr3 single crystals, the low-threshold microlasers and monolithic perovskite light-emitting diode devices are demonstrated. Our results represent a significant step toward advanced optoelectronic devices relying on the emerging perovskite semiconductors.
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Affiliation(s)
- Ziming Wang
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Bo Cai
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yinjuan Ren
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Weihua Wang
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Likuan Feng
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Shengli Zhang
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yue Wang
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
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Zhang B, Liao Y, Tong L, Yang Y, Wang X. Ion migration in Br-doped MAPbI 3 and its inhibition mechanisms investigated via quantum dynamics simulations. Phys Chem Chem Phys 2020; 22:7778-7786. [PMID: 32236205 DOI: 10.1039/d0cp00866d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
MAPb(I1-xBrx)3 is widely used as a window layer in tandem solar cells. Ion migration is one of the most important factors that results in phase separation in MAPb(I1-xBrx)3 and eventually causes a decrease of cell performance. Recent research demonstrates that the doping of Cs+ and the formation of low-dimensional perovskite structures are effective means of inhibiting the migration. To investigate the causes of the migration and its inhibition mechanisms in hybrid halide perovskite materials, large-scale quantum dynamics simulations are conducted on MAPbI3, MAPb(I0.4Br0.6)3 and Cs0.125MA0.875Pb(I0.4Br0.6)3, respectively. By tracking changes in the geometric structures of the perovskite materials before and after doping with Br- and Cs+ in the dynamics processes, the precondition for the ion migration is firstly revealed. The dimension reduction of the perovskite skeleton structures by introducing Cs+ is observed. Furthermore, by combining observations with the variations of the band gap values in all the systems, the inhibition mechanisms of Cs+ doping on ion migration in MAPb(I1-xBrx)3 are revealed.
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Affiliation(s)
- Bing Zhang
- Beijing Key Laboratory of Energy Security and Clean Utilization, North China Electric Power University, Beijing 102206, China. and School of Renewable Energy, North China Electric Power University, Beijing 102206, China
| | - Yinjie Liao
- School of Renewable Energy, North China Electric Power University, Beijing 102206, China
| | - Lei Tong
- School of Renewable Energy, North China Electric Power University, Beijing 102206, China
| | - Yieqin Yang
- School of Renewable Energy, North China Electric Power University, Beijing 102206, China
| | - Xiaogang Wang
- School of Renewable Energy, North China Electric Power University, Beijing 102206, China
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39
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Nakamura Y, Shibayama N, Hori A, Matsushita T, Segawa H, Kondo T. Crystal Systems and Lattice Parameters of CH3NH3Pb(I1–xBrx)3 Determined Using Single Crystals: Validity of Vegard’s Law. Inorg Chem 2020; 59:6709-6716. [DOI: 10.1021/acs.inorgchem.9b03421] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuiga Nakamura
- Department of Materials Engineering, The University of Tokyo, Tokyo, Japan
| | - Naoyuki Shibayama
- Department of General Systems Studies, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan
| | - Akiko Hori
- Graduate School of Engineering and Science, Shibaura Institute of Technology, Saitama, Japan
| | - Tomonori Matsushita
- Department of Materials Engineering, The University of Tokyo, Tokyo, Japan
- Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Hiroshi Segawa
- Department of General Systems Studies, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan
- Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Takashi Kondo
- Department of Materials Engineering, The University of Tokyo, Tokyo, Japan
- Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
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40
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Schmitt T, Bourelle S, Tye N, Soavi G, Bond AD, Feldmann S, Traore B, Katan C, Even J, Dutton SE, Deschler F. Control of Crystal Symmetry Breaking with Halogen-Substituted Benzylammonium in Layered Hybrid Metal-Halide Perovskites. J Am Chem Soc 2020; 142:5060-5067. [PMID: 32101409 DOI: 10.1021/jacs.9b11809] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Layered hybrid metal-halide perovskites with non-centrosymmetric crystal structure are predicted to show spin-selective band splitting from Rashba effects. Thus, fabrication of metal-halide perovskites with defined crystal symmetry is desired to control the spin-splitting in their electronic states. Here, we report the influence of halogen para-substituents on the crystal structure of benzylammonium lead iodide perovskites (4-XC6H4CH2NH3)2PbI4 (X = H, F, Cl, Br). Using X-ray diffraction and second-harmonic generation, we study structure and symmetry of single-crystal and thin-film samples. We report that introduction of a halogen atom lowers the crystal symmetry such that the chlorine- and bromine-substituted structures are non-centrosymmetric. The differences can be attributed to the nature of the intermolecular interactions between the organic molecules. We calculate electronic band structures and find good control of Rashba splittings. Our results present a facile approach to tailor hybrid layered metal halide perovskites with potential for spintronic and nonlinear optical applications.
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Affiliation(s)
- Tanja Schmitt
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Sean Bourelle
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom.,Cambridge Graphene Centre, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0FA, United Kingdom
| | - Nathaniel Tye
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom.,Cambridge Graphene Centre, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0FA, United Kingdom
| | - Giancarlo Soavi
- Cambridge Graphene Centre, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0FA, United Kingdom
| | - Andrew D Bond
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Sascha Feldmann
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Boubacar Traore
- Institut des Sciences Chimiques de Rennes, Université de Rennes 1, 263 Avenue Général Leclerc, F-35700 Rennes, France
| | - Claudine Katan
- Institut des Sciences Chimiques de Rennes, Université de Rennes 1, 263 Avenue Général Leclerc, F-35700 Rennes, France
| | - Jacky Even
- Institut FOTON, Université de Rennes 1, 20 Avenue des Buttes de Coësmes, F-35700 Rennes, France
| | - Siân E Dutton
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Felix Deschler
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
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41
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Xie YM, Zeng Z, Xu X, Ma C, Ma Y, Li M, Lee CS, Tsang SW. FA-Assistant Iodide Coordination in Organic-Inorganic Wide-Bandgap Perovskite with Mixed Halides. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1907226. [PMID: 32049427 DOI: 10.1002/smll.201907226] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/15/2020] [Indexed: 05/24/2023]
Abstract
Mixed-halide wide-bandgap perovskites are key components for the development of high-efficiency tandem structured devices. However, mixed-halide perovskites usually suffer from phase-impurity and high defect density issues, where the causes are still unclear. By using in situ photoluminescence (PL) spectroscopy, it is found that in methylammonium (MA+ )-based mixed-halide perovskites, MAPb(I0.6 Br0.4 )3 , the halide composition of the spin-coated perovskite films is preferentially dominated by the bromide ions (Br- ). Additional thermal energy is required to initiate the insertion of iodide ions (I- ) to achieve the stoichiometric balance. Notably, by incorporating a small amount of formamidinium ions (FA+ ) in the precursor solution, it can effectively facilitate the I- coordination in the perovskite framework during the spin-coating and improve the composition homogeneity of the initial small particles. The aggregation of these homogenous small particles is found to be essential to achieve uniform and high-crystallinity perovskite film with high Br- content. As a result, high-quality MA0.9 FA0.1 Pb(I0.6 Br0.4 )3 perovskite film with a bandgap (Eg ) of 1.81 eV is achieved, along with an encouraging power-conversion-efficiency of 17.1% and open-circuit voltage (Voc ) of 1.21 V. This work also demonstrates the in situ PL can provide a direct observation of the dynamic of ion coordination during the perovskite crystallization.
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Affiliation(s)
- Yue-Min Xie
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, P. R. China
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong SAR, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Zixin Zeng
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, P. R. China
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong SAR, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Xiuwen Xu
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, P. R. China
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong SAR, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Chunqing Ma
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, P. R. China
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong SAR, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Yuhui Ma
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, P. R. China
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong SAR, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Menglin Li
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, P. R. China
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong SAR, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Chun-Sing Lee
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, P. R. China
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong SAR, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Sai-Wing Tsang
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, P. R. China
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong SAR, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, P. R. China
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Shin M, Lee HS, Sim YC, Cho YH, Cheol Choi K, Shin B. Modulation of Growth Kinetics of Vacuum-Deposited CsPbBr 3 Films for Efficient Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2020; 12:1944-1952. [PMID: 31815412 DOI: 10.1021/acsami.9b20094] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Because of its excellent optical properties and good stability, all-inorganic halide perovskite CsPbX3 (X = I, Br, Cl) has been attracting interest for use in light-emitting diodes (LEDs). One challenge is improving the efficacy of the spatial confinement of excitons for higher luminescence efficiency. Here, we present a simple yet very effective strategy to form fine-grain-structured CsPbBr3 polycrystalline films prepared by thermal co-evaporation. The strategy involves controlling growth kinetics by adjusting the deposition rate, which, along with growth temperature, determines the nucleation rate and therefore the eventual grain structure. A correlation between deposition rate and average grain size was noted except for a very large deposition rate when there were large hillocks, which we attributed to the peculiar growth behavior of PbBr2 films. The growth conditions that produced a nanoscale grain structure and textured orientations without large hillocks also resulted in the highest luminescence efficiency as we anticipated. With the optimized CsPbBr3 light emitters, we demonstrate a green-light-emitting (at 524 nm) LED with a maximum current efficiency of 1.07 cd/A and an extremely narrow electroluminescence spectrum of 18 nm, a result that highlights the potential of vacuum-processed CsPbBr3 films for high-efficiency LEDs.
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Camargo FVA, Nagahara T, Feldmann S, Richter JM, Friend RH, Cerullo G, Deschler F. Dark Subgap States in Metal-Halide Perovskites Revealed by Coherent Multidimensional Spectroscopy. J Am Chem Soc 2020; 142:777-782. [PMID: 31851510 DOI: 10.1021/jacs.9b07169] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Metal-halide perovskites show excellent properties for photovoltaic and optoelectronic applications, with power conversion efficiencies of solar cell and LEDs exceeding 20%. Being solution processed, these polycrystalline materials likely contain a large density of defects compared to melt-grown semiconductors. Surprisingly, typical effects from defects (absorption below the bandgap, low fill factor and open circuit voltage in devices, strong nonradiative recombination) are not observed. In this work, we study thin films of metal-halide perovskites CH3NH3PbX3 (X = Br, I) with ultrafast multidimensional optical spectroscopy to resolve the dynamics of band and defect states. We observe a shared ground state between the band-edge transitions and a continuum of sub-bandgap states, which extends at least 350 meV below the band edge). We explain the comparatively large bleaching of the dark sub-bandgap states with oscillator strength borrowing from the band-edge transition. Our results show that upon valence to conduction band excitation, such subgap states are instantaneously bleached for large parts of the carrier lifetime and conversely that most dark sub-bandgap states can be populated by light excitation. This observation helps to unravel the photophysical origin of the unexpected optoelectronic properties of these materials.
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Affiliation(s)
- Franco V A Camargo
- IFN-CNR, Dipartimento di Fisica , Politecnico di Milano , Piazza L. da Vinci 32 , 20133 Milano , Italy
| | - Tetsuhiko Nagahara
- IFN-CNR, Dipartimento di Fisica , Politecnico di Milano , Piazza L. da Vinci 32 , 20133 Milano , Italy.,Department of Chemistry and Materials Technology , Kyoto Institute of Technology , 606-8585 Kyoto , Japan
| | - Sascha Feldmann
- Cavendish Laboratory , University of Cambridge , JJ Thomson Avenue , Cambridge CB3 0HE , United Kingdom
| | - Johannes M Richter
- Cavendish Laboratory , University of Cambridge , JJ Thomson Avenue , Cambridge CB3 0HE , United Kingdom
| | - Richard H Friend
- Cavendish Laboratory , University of Cambridge , JJ Thomson Avenue , Cambridge CB3 0HE , United Kingdom
| | - Giulio Cerullo
- IFN-CNR, Dipartimento di Fisica , Politecnico di Milano , Piazza L. da Vinci 32 , 20133 Milano , Italy
| | - Felix Deschler
- Cavendish Laboratory , University of Cambridge , JJ Thomson Avenue , Cambridge CB3 0HE , United Kingdom.,Walter Schottky Institut and Physik Department , Technische Universität München , 85748 Garching , Germany
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44
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López CA, Alvarez-Galván MC, Martínez-Huerta MV, Fauth F, Alonso JA. Crystal structure features of CH3NH3PbI3−xBrx hybrid perovskites prepared by ball milling: a route to more stable materials. CrystEngComm 2020. [DOI: 10.1039/c9ce01461f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Hybrid organic–inorganic perovskites, MAPbX3 (MA: CH3–NH3+; X = halogen), prepared by ball milling are, by far, much more stable towards ambient conditions (air, humidity) than the conventional materials prepared from solution chemistry.
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Affiliation(s)
- Carlos Alberto López
- Instituto de Ciencia de Materiales de Madrid
- CSIC
- 28049 Madrid
- Spain
- Instituto de Investigaciones en Tecnología Química (INTEQUI)
| | | | | | - Francois Fauth
- CELLS–ALBA synchrotron
- Cerdanyola del Valles
- Barcelona
- Spain
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45
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Jong UG, Yu CJ, Kye YH. Computational prediction of structural, electronic, and optical properties and phase stability of double perovskites K2SnX6 (X = I, Br, Cl). RSC Adv 2020; 10:201-209. [PMID: 35492571 PMCID: PMC9048279 DOI: 10.1039/c9ra09232c] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 12/03/2019] [Indexed: 12/19/2022] Open
Abstract
The vacancy-ordered double perovskites K2SnX6 (X = I, Br, Cl) attract significant research interest due to their potential applications as light absorbing materials in perovskite solar cells. However, deeper insight into their material properties at the atomic scale is currently lacking. Here we present a systematic investigation of the structural, electronic, and optical properties and phase stabilities of the cubic, tetragonal, and monoclinic phases based on density functional theory calculations. Quantitatively reliable predictions of lattice constants, band gaps, effective masses of charge carriers, and exciton binding energies are provided and compared with the available experimental data, revealing the tendency of the band gap and exciton binding energy to increase on lowering the crystallographic symmetry from cubic to monoclinic and on moving from I to Cl. We highlight that cubic K2SnBr6 and monoclinic K2SnI6 are suitable for applications as light absorbers for solar cell devices due to their appropriate band gaps of 1.65 and 1.16 eV and low exciton binding energies of 59.4 and 15.3 meV, respectively. The constant-volume Helmholtz free energies are determined through phonon calculations, which predict phase transition temperatures of 449, 433 and 281 K for cubic–tetragonal and 345, 301 and 210 K for tetragonal–monoclinic transitions for X = I, Br and Cl, respectively. Our calculations provide an understanding of the material properties of the vacancy-ordered double perovskites K2SnX6, which could help in devising a low-cost and high performance perovskite solar cell. HSE + SOC were used to calculate the band structures of the cubic, tetragonal, and monoclinic phases of the double perovskites K2SnX6 (X = I, Br, Cl).![]()
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Affiliation(s)
- Un-Gi Jong
- Chair of Computational Materials Design
- Faculty of Materials Science
- Kim Il Sung University
- Pyongyang
- Democratic People’s Republic of Korea
| | - Chol-Jun Yu
- Chair of Computational Materials Design
- Faculty of Materials Science
- Kim Il Sung University
- Pyongyang
- Democratic People’s Republic of Korea
| | - Yun-Hyok Kye
- Chair of Computational Materials Design
- Faculty of Materials Science
- Kim Il Sung University
- Pyongyang
- Democratic People’s Republic of Korea
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46
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Xin D, Tie S, Yuan R, Zheng X, Zhu J, Zhang WH. Defect Passivation in Hybrid Perovskite Solar Cells by Tailoring the Electron Density Distribution in Passivation Molecules. ACS APPLIED MATERIALS & INTERFACES 2019; 11:44233-44240. [PMID: 31696708 DOI: 10.1021/acsami.9b15166] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Commercialization of perovskite solar cells (PSCs) requires developing high-efficiency devices with good stability. Ionic defects existing in the perovskite layer can serve as nonradiative recombination centers to deteriorate the performance of PSCs and can introduce chemical degradation of the perovskite material introducing instability issues. Here, passivation molecules with various electron density distributions (EDD) are employed as an ideal model to reveal the role of EDD on defect passivation in perovskite thin films. Power conversion efficiency (PCE) exceeding 21% with good stability in humid air was obtained for planar PSCs with the 4-aminobenzonitrile (ABN) additive, higher than the reference PSCs with a PCE of 20.22%. The improved stability and performance features are attributed to the efficient passivation for charged defects in perovskites by adding ABN, which guarantees a smaller Urbach energy, longer carrier lifetime, and less traps in the perovskite films.
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Affiliation(s)
- Deyu Xin
- Department of Materials Science , Sichuan University , Chengdu 610064 , China
- Sichuan Research Center of New Materials, Institute of Chemical Materials , China Academy of Engineering Physics , 596 Yinhe Road , Shuangliu, Chengdu 610200 , China
| | - Shujie Tie
- Department of Materials Science , Sichuan University , Chengdu 610064 , China
- Sichuan Research Center of New Materials, Institute of Chemical Materials , China Academy of Engineering Physics , 596 Yinhe Road , Shuangliu, Chengdu 610200 , China
| | - Ruihan Yuan
- Sichuan Research Center of New Materials, Institute of Chemical Materials , China Academy of Engineering Physics , 596 Yinhe Road , Shuangliu, Chengdu 610200 , China
| | - Xiaojia Zheng
- Sichuan Research Center of New Materials, Institute of Chemical Materials , China Academy of Engineering Physics , 596 Yinhe Road , Shuangliu, Chengdu 610200 , China
| | - Jianguo Zhu
- Department of Materials Science , Sichuan University , Chengdu 610064 , China
| | - Wen-Hua Zhang
- Sichuan Research Center of New Materials, Institute of Chemical Materials , China Academy of Engineering Physics , 596 Yinhe Road , Shuangliu, Chengdu 610200 , China
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47
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Wang Z, Wang Y, Nie Z, Ren Y, Zeng H. Laser induced ion migration in all-inorganic mixed halide perovskite micro-platelets. NANOSCALE ADVANCES 2019; 1:4459-4465. [PMID: 36134425 PMCID: PMC9417044 DOI: 10.1039/c9na00565j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 10/07/2019] [Indexed: 05/24/2023]
Abstract
Despite intensive research on ion migration (IM) in organic-inorganic hybrid metal halide perovskites, much less is known about the irradiation effect on IM in all-inorganic perovskites, especially for those single crystals lacking complicated grain boundaries. Herein, the real-time IM process and the corresponding photoluminescence (PL) spectra induced by laser irradiation in all-inorganic CsPbBr x I(3-x) single crystals prepared by chemical vapor deposition (CVD) were investigated. We proposed that a local electric field acts as a driving force for IM and confirmed this by applying a bias to an indium tin oxide (ITO)/perovskite/ITO configuration. According to the control experiments on CsPbBr x I(3-x) micro-platelets with and without polymethyl methacrylate (PMMA) coating, it is concluded that the vacancy defect on the single crystal surface is the main pathway for IM. Our work is important for understanding and controlling light induced IM in all-inorganic perovskites.
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Affiliation(s)
- Ziming Wang
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology Nanjing 210094 China
| | - Yue Wang
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology Nanjing 210094 China
| | - Zhonghui Nie
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology Nanjing 210094 China
| | - Yinjuan Ren
- Department of Chemistry, National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Haibo Zeng
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology Nanjing 210094 China
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48
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Stranks SD, Hoye RLZ, Di D, Friend RH, Deschler F. The Physics of Light Emission in Halide Perovskite Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1803336. [PMID: 30187974 DOI: 10.1002/adma.201803336] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 06/29/2018] [Indexed: 05/21/2023]
Abstract
Light emission is a critical property that must be maximized and controlled to reach the performance limits in optoelectronic devices such as photovoltaic solar cells and light-emitting diodes. Halide perovskites are an exciting family of materials for these applications owing to uniquely promising attributes that favor strong luminescence in device structures. Herein, the current understanding of the physics of light emission in state-of-the-art metal-halide perovskite devices is presented. Photon generation and management, and how these can be further exploited in device structures, are discussed. Key processes involved in photoluminescence and electroluminescence in devices as well as recent efforts to reduce nonradiative losses in neat films and interfaces are discussed. Finally, pathways toward reaching device efficiency limits and how the unique properties of perovskites provide a tremendous opportunity to significantly disrupt both the power generation and lighting industries are outlined.
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Affiliation(s)
| | - Robert L Z Hoye
- Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UK
| | - Dawei Di
- Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UK
| | | | - Felix Deschler
- Cavendish Laboratory, JJ Thomson Avenue, Cambridge, CB3 0HE, UK
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49
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Kour R, Arya S, Verma S, Gupta J, Bandhoria P, Bharti V, Datt R, Gupta V. Potential Substitutes for Replacement of Lead in Perovskite Solar Cells: A Review. GLOBAL CHALLENGES (HOBOKEN, NJ) 2019; 3:1900050. [PMID: 31692982 PMCID: PMC6827533 DOI: 10.1002/gch2.201900050] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Indexed: 05/02/2023]
Abstract
Lead halide perovskites have displayed the highest solar power conversion efficiencies of 23% but the toxicity issues of these materials need to be addressed. Lead-free perovskites have emerged as viable candidates for potential use as light harvesters to ensure clean and green photovoltaic technology. The substitution of lead by Sn, Ge, Bi, Sb, Cu and other potential candidates have reported efficiencies of up to 9%, but there is still a dire need to enhance their efficiencies and stability within the air. A comprehensive review is given on potential substitutes for lead-free perovskites and their characteristic features like energy bandgaps and optical absorption as well as photovoltaic parameters like open-circuit voltage (V OC), fill factor, short-circuit current density (J SC), and the device architecture for their efficient use. Lead-free perovskites do possess a suitable bandgap but have low efficiency. The use of additives has a significant effect on their efficiency and stability. The incorporation of cations like diethylammonium, phenylethyl ammonium, phenylethyl ammonium iodide, etc., or mixed cations at different compositions at the A-site is reported with engineered bandgaps having significant efficiency and stability. Recent work on the advancement of lead-free perovskites is also reviewed.
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Affiliation(s)
- Ravinder Kour
- Department of PhysicsGovernment Degree College for WomenKathuaJammu and Kashmir184102India
| | - Sandeep Arya
- Department of PhysicsUniversity of JammuJammu and KashmirJammu180006India
| | - Sonali Verma
- Department of PhysicsUniversity of JammuJammu and KashmirJammu180006India
| | - Jyoti Gupta
- Department of PhysicsUniversity of JammuJammu and KashmirJammu180006India
| | - Pankaj Bandhoria
- Department of PhysicsGovernment Gandhi Memorial Science College JammuJammu and KashmirJammu180001India
| | - Vishal Bharti
- Departamento de Ciência dos MateriaisFaculdade de Ciências e TecnologiaFCTUniversidade Nova de Lisboa2829‐516Campus de CaparicaPortugal
| | - Ram Datt
- Advance Materials and Devices DivisionCSIR‐National Physical LaboratoryDr. K. S. Krishnan MargNew Delhi110012India
| | - Vinay Gupta
- Department of Mechanical and Materials EngineeringKhalifa University of Science and TechnologyMasdar InstituteMasdar City54224Abu DhabiUAE
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50
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Abstract
We report clear room temperature ambipolar transport in ambient-air processed methylammonium lead iodide (MAPbI3) thin-film transistors (TFTs) with aluminum oxide gate-insulators and indium-zinc-oxide source/drain electrodes. The high ionicity of the MAPbI3 leads to p-type and n-type self-doping, and depending on the applied bias we show that simultaneous or selective transport of electrons and/or holes is possible in a single MAPbI3 TFT. The electron transport (n-type), however, is slightly more pronounced than the hole transport (p-type), and the respective channel resistances range from 5–11 and 44–55 MΩ/μm. Both p-type and n-type TFTs show good on-state characteristics for low driving voltages. It is also shown here that the on-state current of the n-type and p-type TFTs is highest in the slightly PbI2-rich and MAI-rich films, respectively, suggesting controllable n-type or p-type transport by varying precursor ratio.
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