451
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Structural and Photophysical Properties of Methylammonium Lead Tribromide (MAPbBr 3) Single Crystals. Sci Rep 2017; 7:13643. [PMID: 29057892 PMCID: PMC5651898 DOI: 10.1038/s41598-017-13571-1] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 09/25/2017] [Indexed: 12/04/2022] Open
Abstract
The structural and photophysical characteristics of MAPbBr3 single crystals prepared using the inverse temperature crystallization method are evaluated using temperature-dependent X-ray diffraction (XRD) and optical spectroscopy. Contrary to previous research reports on perovskite materials, we study phase transitions in crystal lattice structures accompanied with changes in optical properties expand throughout a wide temperature range of 300–1.5 K. The XRD studies reveal several phase transitions occurred at ~210 K, ~145 K, and ~80 K, respectively. The coexistence of two different crystallographic phases was observed at a temperature below 145 K. The emission peaks in the PL spectra are all asymmetric in line shape with weak and broad shoulders near the absorption edges, which are attributed to the Br atom vacancy on the surface of the crystals. The time-resolved PL measurements reveal the effect of the desorption/adsorption of gas molecules on the crystal surface on the PL lifetimes. Raman spectroscopy results indicate the strong interplays between cations and different halide atoms. Lastly, no diamagnetic shift or split in emission peaks can be observed in the magneto-PL spectra even at an applied magnetic field up to 5 T and at a temperature as low as 1.5 K.
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452
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Staub F, Kirchartz T, Bittkau K, Rau U. Manipulating the Net Radiative Recombination Rate in Lead Halide Perovskite Films by Modification of Light Outcoupling. J Phys Chem Lett 2017; 8:5084-5090. [PMID: 28976758 DOI: 10.1021/acs.jpclett.7b02224] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Photon recycling is a fundamental physical process that becomes especially important for photovoltaic devices that operate close to the radiative limit. This implies that the externally measured radiative decay rate deviates from the internal radiative recombination rate of the material. In the present Letter, the probability of photon recycling in organic lead halide perovskite films is manipulated by modifying the underlying layer stacks. We observe recombination kinetics by time-resolved photoluminescence that is controlled by the optical design of the chosen layer structure. Quantitative simulations of decay rates and emission spectra show excellent agreement with experimental results if we assume that the internal bimolecular recombination coefficient is ∼66% radiative.
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Affiliation(s)
- Florian Staub
- IEK-5 Photovoltaik, Forschungszentrum Jülich GmbH , 52425 Jülich, Germany
| | - Thomas Kirchartz
- IEK-5 Photovoltaik, Forschungszentrum Jülich GmbH , 52425 Jülich, Germany
- Faculty of Engineering and CENIDE, University of Duisburg-Essen , Carl-Benz-Strasse 199, 47057 Duisburg, Germany
| | - Karsten Bittkau
- IEK-5 Photovoltaik, Forschungszentrum Jülich GmbH , 52425 Jülich, Germany
| | - Uwe Rau
- IEK-5 Photovoltaik, Forschungszentrum Jülich GmbH , 52425 Jülich, Germany
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453
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Yamada Y, Yamada T, Kanemitsu Y. Free Carrier Radiative Recombination and Photon Recycling in Lead Halide Perovskite Solar Cell Materials. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2017. [DOI: 10.1246/bcsj.20170208] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yasuhiro Yamada
- Department of Physics, Chiba University, Inage, Chiba 263-8522
| | - Takumi Yamada
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011
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454
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Naphade R, Nagane S, Bansode U, Tathavadekar M, Sadhanala A, Ogale S. Synthetic Manipulation of Hybrid Perovskite Systems in Search of New and Enhanced Functionalities. CHEMSUSCHEM 2017; 10:3722-3739. [PMID: 28804965 DOI: 10.1002/cssc.201701093] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 08/09/2017] [Indexed: 06/07/2023]
Abstract
Over the past few years the organic-inorganic hybrid perovskite systems have emerged as a promising class of materials for photovoltaic and electroluminescent thin-film device applications, in view of their unique set of tunable optoelectronic properties. Importantly, these materials can be easily solution-processed at low temperatures and as such are amenable to facile molecular engineering. Thus, a variety of low-dimensional forms and quantum structures of these materials can be obtained through strategic synthetic manipulations through small molecule incorporation or molecular ion doping. In this Minireview, we specifically focus on these approaches and outline the possibilities of utilizing these for enhanced functionalities and newer application domains.
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Affiliation(s)
- Rounak Naphade
- Department of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pune, 411008, India
| | - Satyawan Nagane
- Department of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pune, 411008, India
| | - Umesh Bansode
- National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411008, India
| | - Mukta Tathavadekar
- National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411008, India
| | - Aditya Sadhanala
- Cavendish Laboratory, JJ Thomson Avenue, CB30HE, Cambridge, United Kingdom
| | - Satishchandra Ogale
- Department of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pune, 411008, India
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455
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Miyata K, Atallah TL, Zhu XY. Lead halide perovskites: Crystal-liquid duality, phonon glass electron crystals, and large polaron formation. SCIENCE ADVANCES 2017; 3:e1701469. [PMID: 29043296 PMCID: PMC5640380 DOI: 10.1126/sciadv.1701469] [Citation(s) in RCA: 168] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 09/14/2017] [Indexed: 05/22/2023]
Abstract
Lead halide perovskites have been demonstrated as high performance materials in solar cells and light-emitting devices. These materials are characterized by coherent band transport expected from crystalline semiconductors, but dielectric responses and phonon dynamics typical of liquids. This "crystal-liquid" duality implies that lead halide perovskites belong to phonon glass electron crystals, a class of materials believed to make the most efficient thermoelectrics. We show that the crystal-liquid duality and the resulting dielectric response are responsible for large polaron formation and screening of charge carriers, leading to defect tolerance, moderate charge carrier mobility, and radiative recombination properties. Large polaron formation, along with the phonon glass character, may also explain the marked reduction in hot carrier cooling rates in these materials.
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456
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Anti-Solvent Crystallization Strategies for Highly Efficient Perovskite Solar Cells. CRYSTALS 2017. [DOI: 10.3390/cryst7100291] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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457
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Collins L, Ahmadi M, Wu T, Hu B, Kalinin SV, Jesse S. Breaking the Time Barrier in Kelvin Probe Force Microscopy: Fast Free Force Reconstruction Using the G-Mode Platform. ACS NANO 2017; 11:8717-8729. [PMID: 28780850 DOI: 10.1021/acsnano.7b02114] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Atomic force microscopy (AFM) offers unparalleled insight into structure and material functionality across nanometer length scales. However, the spatial resolution afforded by the AFM tip is counterpoised by slow detection speeds compared to other common microscopy techniques (e.g., optical, scanning electron microscopy, etc.). In this work, we develop an ultrafast AFM imaging approach allowing direct reconstruction of the tip-sample forces with ∼3 order of magnitude higher time resolution than is achievable using standard AFM detection methods. Fast free force recovery (F3R) overcomes the widely viewed temporal bottleneck in AFM, that is, the mechanical bandwidth of the cantilever, enabling time-resolved imaging at sub-bandwidth speeds. We demonstrate quantitative recovery of electrostatic forces with ∼10 μs temporal resolution, free from influences of the cantilever ring-down. We further apply the F3R method to Kelvin probe force microscopy (KPFM) measurements. F3R-KPFM is an open loop imaging approach (i.e., no bias feedback), allowing ultrafast surface potential measurements (e.g., <20 μs) to be performed at regular KPFM scan speeds. F3R-KPFM is demonstrated for exploration of ion migration in organometallic halide perovskite materials and shown to allow spatiotemporal imaging of positively charged ion migration under applied electric field, as well as subsequent formation of accumulated charges at the perovskite/electrode interface. In this work, we demonstrate quantitative F3R-KPFM measurements-however, we fully expect the F3R approach to be valid for all modes of noncontact AFM operation, including noninvasive probing of ultrafast electrical and magnetic dynamics.
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Affiliation(s)
| | - Mahshid Ahmadi
- Joint Institute for Advanced Materials, Department of Materials Science and Engineering, University of Tennessee , Knoxville 37996, United States
| | - Ting Wu
- Joint Institute for Advanced Materials, Department of Materials Science and Engineering, University of Tennessee , Knoxville 37996, United States
| | - Bin Hu
- Joint Institute for Advanced Materials, Department of Materials Science and Engineering, University of Tennessee , Knoxville 37996, United States
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458
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Abstract
Advances in computational materials have paved a way to design efficient solar cells by identifying the optimal properties of the device layers. Conventionally, the device optimization has been governed by single or double descriptors for an individual layer; mostly the absorbing layer. However, the performance of the device depends collectively on all the properties of the material and the geometry of each layer in the cell. To address this issue of multi-property optimization and to avoid the paradigm of reoccurring materials in the solar cell field, a full space material-independent optimization approach is developed and presented in this paper. The method is employed to obtain an optimized material data set for maximum efficiency and for targeted functionality for each layer. To ensure the robustness of the method, two cases are studied; namely perovskite solar cells device optimization and cadmium-free CIGS solar cell. The implementation determines the desirable optoelectronic properties of transport mediums and contacts that can maximize the efficiency for both cases. The resulted data sets of material properties can be matched with those in materials databases or by further microscopic material design. Moreover, the presented multi-property optimization framework can be extended to design any solid-state device.
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459
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Wenger B, Nayak PK, Wen X, Kesava SV, Noel NK, Snaith HJ. Consolidation of the optoelectronic properties of CH 3NH 3PbBr 3 perovskite single crystals. Nat Commun 2017; 8:590. [PMID: 28928482 PMCID: PMC5605602 DOI: 10.1038/s41467-017-00567-8] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 07/10/2017] [Indexed: 11/26/2022] Open
Abstract
Ultralow trap densities, exceptional optical and electronic properties have been reported for lead halide perovskites single crystals; however, ambiguities in basic properties, such as the band gap, and the electronic defect densities in the bulk and at the surface prevail. Here, we synthesize single crystals of methylammonium lead bromide (CH3NH3PbBr3), characterise the optical absorption and photoluminescence and show that the optical properties of single crystals are almost identical to those of polycrystalline thin films. We observe significantly longer lifetimes and show that carrier diffusion plays a substantial role in the photoluminescence decay. Contrary to many reports, we determine that the trap density in CH3NH3PbBr3 perovskite single crystals is 1015 cm−3, only one order of magnitude lower than in the thin films. Our enhanced understanding of optical properties and recombination processes elucidates ambiguities in earlier reports, and highlights the discrepancies in the estimation of trap densities from electronic and optical methods. Metal halide perovskites for optoelectronic devices have been extensively studied in two forms: single-crystals or polycrystalline thin films. Using spectroscopic approaches, Wenger et al. show that polycrystalline thin films possess similar optoelectronic properties to single crystals.
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Affiliation(s)
- Bernard Wenger
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, UK
| | - Pabitra K Nayak
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, UK
| | - Xiaoming Wen
- Australian Centre for Advanced Photovoltaics, University of New South Wales, Sydney, 2052, New South Wales, Australia.,Centre for Micro-Photonics, Swinburne University of Technology, Hawthorn, Victoria, 3122, Australia
| | - Sameer V Kesava
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, UK
| | - Nakita K Noel
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, UK
| | - Henry J Snaith
- Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, UK.
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460
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Chen J, Morrow DJ, Fu Y, Zheng W, Zhao Y, Dang L, Stolt MJ, Kohler DD, Wang X, Czech KJ, Hautzinger MP, Shen S, Guo L, Pan A, Wright JC, Jin S. Single-Crystal Thin Films of Cesium Lead Bromide Perovskite Epitaxially Grown on Metal Oxide Perovskite (SrTiO3). J Am Chem Soc 2017; 139:13525-13532. [DOI: 10.1021/jacs.7b07506] [Citation(s) in RCA: 155] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jie Chen
- Department
of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
- International
Research Center for Renewable Energy, State Key Laboratory of Multiphase
Flow in Power Engineering, Xi’an Jiaotong University, Shaanxi 710049, P. R. China
| | - Darien J. Morrow
- Department
of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Yongping Fu
- Department
of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Weihao Zheng
- Key
Laboratory for Micro-Nano Physics and Technology of Hunan Province,
School of Physics and Electronic Science, Hunan University, Changsha 410082, P. R. China
| | - Yuzhou Zhao
- Department
of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Lianna Dang
- Department
of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Matthew J. Stolt
- Department
of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Daniel D. Kohler
- Department
of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Xiaoxia Wang
- Key
Laboratory for Micro-Nano Physics and Technology of Hunan Province,
School of Physics and Electronic Science, Hunan University, Changsha 410082, P. R. China
| | - Kyle J. Czech
- Department
of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Matthew P. Hautzinger
- Department
of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Shaohua Shen
- International
Research Center for Renewable Energy, State Key Laboratory of Multiphase
Flow in Power Engineering, Xi’an Jiaotong University, Shaanxi 710049, P. R. China
| | - Liejin Guo
- International
Research Center for Renewable Energy, State Key Laboratory of Multiphase
Flow in Power Engineering, Xi’an Jiaotong University, Shaanxi 710049, P. R. China
| | - Anlian Pan
- Key
Laboratory for Micro-Nano Physics and Technology of Hunan Province,
School of Physics and Electronic Science, Hunan University, Changsha 410082, P. R. China
| | - John C. Wright
- Department
of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Song Jin
- Department
of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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461
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Nazarenko O, Kotyrba MR, Wörle M, Cuervo-Reyes E, Yakunin S, Kovalenko MV. Luminescent and Photoconductive Layered Lead Halide Perovskite Compounds Comprising Mixtures of Cesium and Guanidinium Cations. Inorg Chem 2017; 56:11552-11564. [PMID: 28895725 DOI: 10.1021/acs.inorgchem.7b01204] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Interest in hybrid organic-inorganic lead halide compounds with perovskite-like two-dimensional crystal structures is growing due to the unique electronic and optoelectronic properties of these compounds. Herein, we demonstrate the synthesis, thermal and optical properties, and calculations of the electronic band structures for one- and two-layer compounds comprising both cesium and guanidinium cations: Cs[C(NH2)3]PbI4 (I), Cs[C(NH2)3]PbBr4 (II), and Cs2[C(NH2)3]Pb2Br7 (III). Compounds I and II exhibit intense photoluminescence at low temperatures, whereas compound III is emissive at room temperature. All of the obtained substances are stable in air and do not thermally decompose until 300 °C. Since Cs+ and C(NH2)3+ are increasingly utilized in precursor solutions for depositing polycrystalline lead halide perovskite thin films for photovoltaics, exploring possible compounds within this compositional space is of high practical relevance to understanding the photophysics and atomistic chemical nature of such films.
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Affiliation(s)
- Olga Nazarenko
- ETH Zürich , Department of Chemistry and Applied Biosciences, CH-8093 Zurich, Switzerland.,Empa-Swiss Federal Laboratories for Materials Science and Technology , CH-8600 Dübendorf, Switzerland
| | - Martin Robert Kotyrba
- ETH Zürich , Department of Chemistry and Applied Biosciences, CH-8093 Zurich, Switzerland.,Empa-Swiss Federal Laboratories for Materials Science and Technology , CH-8600 Dübendorf, Switzerland
| | - Michael Wörle
- ETH Zürich , Department of Chemistry and Applied Biosciences, CH-8093 Zurich, Switzerland
| | - Eduardo Cuervo-Reyes
- Empa-Swiss Federal Laboratories for Materials Science and Technology , CH-8600 Dübendorf, Switzerland
| | - Sergii Yakunin
- ETH Zürich , Department of Chemistry and Applied Biosciences, CH-8093 Zurich, Switzerland.,Empa-Swiss Federal Laboratories for Materials Science and Technology , CH-8600 Dübendorf, Switzerland
| | - Maksym V Kovalenko
- ETH Zürich , Department of Chemistry and Applied Biosciences, CH-8093 Zurich, Switzerland.,Empa-Swiss Federal Laboratories for Materials Science and Technology , CH-8600 Dübendorf, Switzerland
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462
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Wang X, Huang Y, Lei W, Li Q, Zhang X, Khan Q, Wang B. Asymmetrical Photodetection Response of Methylammonium Lead Bromide Perovskite Single Crystal. CRYSTAL RESEARCH AND TECHNOLOGY 2017. [DOI: 10.1002/crat.201700115] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xin Wang
- Joint International Research Laboratory of Information Display and Visualization; School of Electronic Science and Engineering; Southeast University; Nanjing 210096 China
| | - Yin Huang
- Joint International Research Laboratory of Information Display and Visualization; School of Electronic Science and Engineering; Southeast University; Nanjing 210096 China
| | - Wei Lei
- Joint International Research Laboratory of Information Display and Visualization; School of Electronic Science and Engineering; Southeast University; Nanjing 210096 China
| | - Qing Li
- Joint International Research Laboratory of Information Display and Visualization; School of Electronic Science and Engineering; Southeast University; Nanjing 210096 China
| | - Xiaobing Zhang
- Joint International Research Laboratory of Information Display and Visualization; School of Electronic Science and Engineering; Southeast University; Nanjing 210096 China
| | - Qasim Khan
- Joint International Research Laboratory of Information Display and Visualization; School of Electronic Science and Engineering; Southeast University; Nanjing 210096 China
| | - Baoping Wang
- Joint International Research Laboratory of Information Display and Visualization; School of Electronic Science and Engineering; Southeast University; Nanjing 210096 China
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463
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Huang H, Bodnarchuk MI, Kershaw SV, Kovalenko MV, Rogach AL. Lead Halide Perovskite Nanocrystals in the Research Spotlight: Stability and Defect Tolerance. ACS ENERGY LETTERS 2017; 2:2071-2083. [PMID: 28920080 PMCID: PMC5594444 DOI: 10.1021/acsenergylett.7b00547] [Citation(s) in RCA: 401] [Impact Index Per Article: 57.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 08/10/2017] [Indexed: 05/19/2023]
Abstract
This Perspective outlines basic structural and optical properties of lead halide perovskite colloidal nanocrystals, highlighting differences and similarities between them and conventional II-VI and III-V semiconductor quantum dots. A detailed insight into two important issues inherent to lead halide perovskite nanocrystals then follows, namely, the advantages of defect tolerance and the necessity to improve their stability in environmental conditions. The defect tolerance of lead halide perovskites offers an impetus to search for similar attributes in other related heavy metal-free compounds. We discuss the origins of the significantly blue-shifted emission from CsPbBr3 nanocrystals and the synthetic strategies toward fabrication of stable perovskite nanocrystal materials with emission in the red and infrared parts of the optical spectrum, which are related to fabrication of mixed cation compounds guided by Goldschmidt tolerance factor considerations. We conclude with the view on perspectives of use of the colloidal perovskite nanocrystals for applications in backlighting of liquid-crystal TV displays.
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Affiliation(s)
- He Huang
- Department
of Materials Science and Engineering and Centre for Functional Photonics
(CFP), City University of Hong Kong, Kowloon, Hong Kong SAR
| | - Maryna I. Bodnarchuk
- Institute
of Inorganic
Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 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
| | - Stephen V. Kershaw
- Department
of Materials Science and Engineering and Centre for Functional Photonics
(CFP), City University of Hong Kong, Kowloon, Hong Kong SAR
| | - Maksym V. Kovalenko
- Institute
of Inorganic
Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 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
- E-mail: (M.V.K.)
| | - Andrey L. Rogach
- Department
of Materials Science and Engineering and Centre for Functional Photonics
(CFP), City University of Hong Kong, Kowloon, Hong Kong SAR
- E-mail: (A.L.R.)
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464
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Govinda S, Kore BP, Bokdam M, Mahale P, Kumar A, Pal S, Bhattacharyya B, Lahnsteiner J, Kresse G, Franchini C, Pandey A, Sarma DD. Behavior of Methylammonium Dipoles in MAPbX 3 (X = Br and I). J Phys Chem Lett 2017; 8:4113-4121. [PMID: 28812901 PMCID: PMC5592646 DOI: 10.1021/acs.jpclett.7b01740] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 08/16/2017] [Indexed: 05/23/2023]
Abstract
Dielectric constants of MAPbX3 (X = Br, I) in the 1 kHz-1 MHz range show strong temperature dependence near room temperature, in contrast to the nearly temperature-independent dielectric constant of CsPbBr3. This strong temperature dependence for MAPbX3 in the tetragonal phase is attributed to the MA+ dipoles rotating freely within the probing time scale. This interpretation is supported by ab initio molecular dynamics simulations on MAPbI3 that establish these dipoles as randomly oriented with a rotational relaxation time scale of ∼7 ps at 300 K. Further, we probe the intriguing possibility of transient polarization of these dipoles following a photoexcitation process with important consequences on the photovoltaic efficiency, using a photoexcitation pump and second harmonic generation efficiency as a probe with delay times spanning 100 fs-1.8 ns. The absence of a second harmonic signal at any delay time rules out the possibility of any transient ferroelectric state under photoexcitation.
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Affiliation(s)
- Sharada Govinda
- Solid
State and Structural Chemistry Unit, Indian
Institute of Science, Bengaluru 560012, India
| | - Bhushan P. Kore
- Solid
State and Structural Chemistry Unit, Indian
Institute of Science, Bengaluru 560012, India
| | - Menno Bokdam
- Faculty
of Physics and Center for Computational Materials Science, University of Vienna, Sensengasse 8/12, 1090 Vienna, Austria
| | - Pratibha Mahale
- Solid
State and Structural Chemistry Unit, Indian
Institute of Science, Bengaluru 560012, India
| | - Abhinav Kumar
- Solid
State and Structural Chemistry Unit, Indian
Institute of Science, Bengaluru 560012, India
| | - Somnath Pal
- Solid
State and Structural Chemistry Unit, Indian
Institute of Science, Bengaluru 560012, India
| | - Biswajit Bhattacharyya
- Solid
State and Structural Chemistry Unit, Indian
Institute of Science, Bengaluru 560012, India
| | - Jonathan Lahnsteiner
- Faculty
of Physics and Center for Computational Materials Science, University of Vienna, Sensengasse 8/12, 1090 Vienna, Austria
| | - Georg Kresse
- Faculty
of Physics and Center for Computational Materials Science, University of Vienna, Sensengasse 8/12, 1090 Vienna, Austria
| | - Cesare Franchini
- Faculty
of Physics and Center for Computational Materials Science, University of Vienna, Sensengasse 8/12, 1090 Vienna, Austria
| | - Anshu Pandey
- Solid
State and Structural Chemistry Unit, Indian
Institute of Science, Bengaluru 560012, India
| | - D. D. Sarma
- Solid
State and Structural Chemistry Unit, Indian
Institute of Science, Bengaluru 560012, India
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465
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Guo D, Bartesaghi D, Wei H, Hutter EM, Huang J, Savenije TJ. Photoluminescence from Radiative Surface States and Excitons in Methylammonium Lead Bromide Perovskites. J Phys Chem Lett 2017; 8:4258-4263. [PMID: 28832152 PMCID: PMC5592651 DOI: 10.1021/acs.jpclett.7b01642] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 08/23/2017] [Indexed: 05/30/2023]
Abstract
In view of its band gap of 2.2 eV and its stability, methylammonium lead bromide (MAPbBr3) is a possible candidate to serve as a light absorber in a subcell of a multijunction solar cell. Using complementary temperature-dependent time-resolved microwave conductance (TRMC) and photoluminescence (TRPL) measurements, we demonstrate that the exciton yield increases with lower temperature at the expense of the charge carrier generation yield. The low-energy emission at around 580 nm in the cubic phase and the second broad emission peak at 622 nm in the orthorhombic phase originate from radiative recombination of charges trapped in defects with mobile countercharges. We present a kinetic model describing both the decay in conductance as well as the slow ingrowth of the TRPL. Knowledge of defect states at the surface of various crystal phases is of interest to reach higher open-circuit voltages in MAPbBr3-based cells.
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Affiliation(s)
- Dengyang Guo
- Optoelectronic
Materials Section, Department of Chemical Engineering, Delft University of Technology, 2628 HZ Delft, The Netherlands
| | - Davide Bartesaghi
- Optoelectronic
Materials Section, Department of Chemical Engineering, Delft University of Technology, 2628 HZ Delft, The Netherlands
| | - Haotong Wei
- Department
of Mechanical and Materials Engineering and Nebraska Center for Materials
and Nanoscience, University of Nebraska—Lincoln, Lincoln, Nebraska 68588-0656, United States
| | - Eline M. Hutter
- Optoelectronic
Materials Section, Department of Chemical Engineering, Delft University of Technology, 2628 HZ Delft, The Netherlands
| | - Jinsong Huang
- Department
of Mechanical and Materials Engineering and Nebraska Center for Materials
and Nanoscience, University of Nebraska—Lincoln, Lincoln, Nebraska 68588-0656, United States
| | - Tom J. Savenije
- Optoelectronic
Materials Section, Department of Chemical Engineering, Delft University of Technology, 2628 HZ Delft, The Netherlands
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466
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Wei TC, Wang HP, Li TY, Lin CH, Hsieh YH, Chu YH, He JH. Photostriction of CH 3 NH 3 PbBr 3 Perovskite Crystals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1701789. [PMID: 28715093 DOI: 10.1002/adma.201701789] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 05/22/2017] [Indexed: 06/07/2023]
Abstract
Organic-inorganic hybrid perovskite materials exhibit a variety of physical properties. Pronounced coupling between phonon, organic cations, and the inorganic framework suggest that these materials exhibit strong light-matter interactions. The photoinduced strain of CH3 NH3 PbBr3 is investigated using high-resolution and contactless in situ Raman spectroscopy. Under illumination, the material exhibits large blue shifts in its Raman spectra that indicate significant structural deformations (i.e., photostriction). From these shifts, the photostrictive coefficient of CH3 NH3 PbBr3 is calculated as 2.08 × 10-8 m2 W-1 at room temperature under visible light illumination. The significant photostriction of CH3 NH3 PbBr3 is attributed to a combination of the photovoltaic effect and translational symmetry loss of the molecular configuration via strong translation-rotation coupling. Unlike CH3 NH3 PbI3 , it is noted that the photostriction of CH3 NH3 PbBr3 is extremely stable, demonstrating no signs of optical decay for at least 30 d. These results suggest the potential of CH3 NH3 PbBr3 for applications in next-generation optical micro-electromechanical devices.
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Affiliation(s)
- Tzu-Chiao Wei
- Computer, Electrical, and Mathematical Sciences and Engineering Division, King Abdullah University of Science & Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Hsin-Ping Wang
- Computer, Electrical, and Mathematical Sciences and Engineering Division, King Abdullah University of Science & Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Ting-You Li
- Computer, Electrical, and Mathematical Sciences and Engineering Division, King Abdullah University of Science & Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Chun-Ho Lin
- Computer, Electrical, and Mathematical Sciences and Engineering Division, King Abdullah University of Science & Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Ying-Hui Hsieh
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Ying-Hao Chu
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Jr-Hau He
- Computer, Electrical, and Mathematical Sciences and Engineering Division, King Abdullah University of Science & Technology, Thuwal, 23955-6900, Saudi Arabia
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467
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Zhang Y, Fei Z, Gao P, Lee Y, Tirani FF, Scopelliti R, Feng Y, Dyson PJ, Nazeeruddin MK. A Strategy to Produce High Efficiency, High Stability Perovskite Solar Cells Using Functionalized Ionic Liquid-Dopants. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1702157. [PMID: 28741706 DOI: 10.1002/adma.201702157] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 06/03/2017] [Indexed: 06/07/2023]
Abstract
Functionalized imidazolium iodide salts (ionic liquids) modified with CH2 CHCH2 , CH2 CCH, or CH2 CN groups are applied as dopants in the synthesis of CH3 NH3 PbI3 -type perovskites together with a fumigation step. Notably, a solar cell device prepared from the perovskite film doped with the salt containing the CH2 CHCH2 side-chain has a power conversion efficiency of 19.21%, which is the highest efficiency reported for perovskite solar cells involving a fumigation step. However, doping with the imidazolium salts with the CH2 CCH and CH2 CN groups result in perovskite layers that lead to solar cell devices with similar or lower power conversion efficiencies than the dopant-free cell.
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Affiliation(s)
- Yi Zhang
- Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1951, Sion, Switzerland
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Zhaofu Fei
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Peng Gao
- Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1951, Sion, Switzerland
| | - Yonghui Lee
- Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1951, Sion, Switzerland
| | - Farzaneh Fadaei Tirani
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Yaqing Feng
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Paul J Dyson
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Mohammad Khaja Nazeeruddin
- Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1951, Sion, Switzerland
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468
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Wang Y, Sun X, Chen Z, Sun YY, Zhang S, Lu TM, Wertz E, Shi J. High-Temperature Ionic Epitaxy of Halide Perovskite Thin Film and the Hidden Carrier Dynamics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1702643. [PMID: 28719021 DOI: 10.1002/adma.201702643] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Indexed: 06/07/2023]
Abstract
High-temperature vapor phase epitaxy (VPE) has been proved ubiquitously powerful in enabling high-performance electro-optic devices in III-V semiconductor field. A typical example is the successful growth of p-type GaN by VPE for blue light-emitting diodes. VPE excels as it controls film defects such as point/interface defects and grain boundary, thanks to its high-temperature processing condition and controllable deposition rate. For the first time, single-crystalline high-temperature VPE halide perovskite thin film has been demonstrated-a unique platform on unveiling previously uncovered carrier dynamics in inorganic halide perovskites. Toward wafer-scale epitaxial and grain boundary-free film is grown with alkali halides as substrates. It is shown the metal alkali halides could be used as universal substrates for VPE growth of perovskite due to their similar material chemistry and lattice constant. With VPE, hot photoluminescence and nanosecond photo-Dember effect are revealed in inorganic halide perovskite. These two phenomena suggest that inorganic halide perovskite could be as compelling as its organic-inorganic counterpart regarding optoelectronic properties and help explain the long carrier lifetime in halide perovskite. The findings suggest a new avenue on developing high-quality large-scale single-crystalline halide perovskite films requiring precise control of defects and morphology.
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Affiliation(s)
- Yiping Wang
- Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Xin Sun
- Department of Physics, Applied Physics, and Astronomy Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Zhizhong Chen
- Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Yi-Yang Sun
- Department of Physics, Applied Physics, and Astronomy Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Shengbai Zhang
- Department of Physics, Applied Physics, and Astronomy Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Toh-Ming Lu
- Department of Physics, Applied Physics, and Astronomy Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Esther Wertz
- Department of Physics, Applied Physics, and Astronomy Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Jian Shi
- Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
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469
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Peng W, Yin J, Ho KT, Ouellette O, De Bastiani M, Murali B, El Tall O, Shen C, Miao X, Pan J, Alarousu E, He JH, Ooi BS, Mohammed OF, Sargent E, Bakr OM. Ultralow Self-Doping in Two-dimensional Hybrid Perovskite Single Crystals. NANO LETTERS 2017; 17:4759-4767. [PMID: 28657752 DOI: 10.1021/acs.nanolett.7b01475] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Unintentional self-doping in semiconductors through shallow defects is detrimental to optoelectronic device performance. It adversely affects junction properties and it introduces electronic noise. This is especially acute for solution-processed semiconductors, including hybrid perovskites, which are usually high in defects due to rapid crystallization. Here, we uncover extremely low self-doping concentrations in single crystals of the two-dimensional perovskites (C6H5C2H4NH3)2PbI4·(CH3NH3PbI3)n-1 (n = 1, 2, and 3), over three orders of magnitude lower than those of typical three-dimensional hybrid perovskites, by analyzing their conductivity behavior. We propose that crystallization of hybrid perovskites containing large organic cations suppresses defect formation and thus favors a low self-doping level. To exemplify the benefits of this effect, we demonstrate extraordinarily high light-detectivity (1013 Jones) in (C6H5C2H4NH3)2PbI4·(CH3NH3PbI3)n-1 photoconductors due to the reduced electronic noise, which makes them particularly attractive for the detection of weak light signals. Furthermore, the low self-doping concentration reduces the equilibrium charge carrier concentration in (C6H5C2H4NH3)2PbI4·(CH3NH3PbI3)n-1, advantageous in the design of p-i-n heterojunction solar cells by optimizing band alignment and promoting carrier depletion in the intrinsic perovskite layer, thereby enhancing charge extraction.
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Affiliation(s)
- Wei Peng
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
- KAUST Solar Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
- KAUST Catalysis Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Jun Yin
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Kang-Ting Ho
- Division of Computer, Electrical and Mathematical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Olivier Ouellette
- Department of Electrical and Computer Engineering, University of Toronto , 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Michele De Bastiani
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Banavoth Murali
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Omar El Tall
- Analytical Core Lab, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Chao Shen
- Division of Computer, Electrical and Mathematical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Xiaohe Miao
- Imaging and Characterization Core Lab, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Jun Pan
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Erkki Alarousu
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Jr-Hau He
- Division of Computer, Electrical and Mathematical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Boon S Ooi
- Division of Computer, Electrical and Mathematical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Omar F Mohammed
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Edward Sargent
- Department of Electrical and Computer Engineering, University of Toronto , 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Osman M Bakr
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
- KAUST Solar Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
- KAUST Catalysis Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
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470
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Wei H, DeSantis D, Wei W, Deng Y, Guo D, Savenije TJ, Cao L, Huang J. Dopant compensation in alloyed CH 3NH 3PbBr 3-xCl x perovskite single crystals for gamma-ray spectroscopy. NATURE MATERIALS 2017; 16:826-833. [PMID: 28671663 DOI: 10.1038/nmat4927] [Citation(s) in RCA: 180] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 05/26/2017] [Indexed: 05/03/2023]
Abstract
Organic-inorganic halide perovskites (OIHPs) bring an unprecedented opportunity for radiation detection with their defect-tolerance nature, large mobility-lifetime product, and simple crystal growth from solution. Here we report a dopant compensation in alloyed OIHP single crystals to overcome limitations of device noise and charge collection, enabling γ-ray spectrum collection at room temperature. CH3NH3PbBr3 and CH3NH3PbCl3 are found to be p-type and n-type doped, respectively, whereas dopant-compensated CH3NH3PbBr2.94Cl0.06 alloy has over tenfold improved bulk resistivity of 3.6 × 109 Ω cm. Alloying also increases the hole mobility to 560 cm2 V-1 s-1, yielding a high mobility-lifetime product of 1.8 × 10-2 cm2 V-1. The use of a guard ring electrode in the detector reduces the crystal surface leakage current and device dark current. A distinguishable 137Cs energy spectrum with comparable or better resolution than standard scintillator detectors is collected under a small electric field of 1.8 V mm-1 at room temperature.
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Affiliation(s)
- Haotong Wei
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| | - Dylan DeSantis
- Nuclear Engineering Program, Department of Mechanical and Aerospace Engineering, Ohio State University, Columbus, Ohio 43210, USA
| | - Wei Wei
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| | - Yehao Deng
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| | - Dengyang Guo
- Optoelectronic Materials Section, Department of Chemical Engineering, Delft University of Technology, 2628 BL Delft, the Netherlands
| | - Tom J Savenije
- Optoelectronic Materials Section, Department of Chemical Engineering, Delft University of Technology, 2628 BL Delft, the Netherlands
| | - Lei Cao
- Nuclear Engineering Program, Department of Mechanical and Aerospace Engineering, Ohio State University, Columbus, Ohio 43210, USA
| | - Jinsong Huang
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, North Carolina 27599, USA
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471
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Miyata K, Meggiolaro D, Trinh MT, Joshi PP, Mosconi E, Jones SC, De Angelis F, Zhu XY. Large polarons in lead halide perovskites. SCIENCE ADVANCES 2017; 3:e1701217. [PMID: 28819647 PMCID: PMC5553817 DOI: 10.1126/sciadv.1701217] [Citation(s) in RCA: 250] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Accepted: 07/12/2017] [Indexed: 05/19/2023]
Abstract
Lead halide perovskites show marked defect tolerance responsible for their excellent optoelectronic properties. These properties might be explained by the formation of large polarons, but how they are formed and whether organic cations are essential remain open questions. We provide a direct time domain view of large polaron formation in single-crystal lead bromide perovskites CH3NH3PbBr3 and CsPbBr3. We found that large polaron forms predominantly from the deformation of the PbBr3- frameworks, irrespective of the cation type. The difference lies in the polaron formation time, which, in CH3NH3PbBr3 (0.3 ps), is less than half of that in CsPbBr3 (0.7 ps). First-principles calculations confirm large polaron formation, identify the Pb-Br-Pb deformation modes as responsible, and explain quantitatively the rate difference between CH3NH3PbBr3 and CsPbBr3. The findings reveal the general advantage of the soft [PbX3]- sublattice in charge carrier protection and suggest that there is likely no mechanistic limitations in using all-inorganic or mixed-cation lead halide perovskites to overcome instability problems and to tune the balance between charge carrier protection and mobility.
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Affiliation(s)
- Kiyoshi Miyata
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Daniele Meggiolaro
- Computational Laboratory for Hybrid/Organic Photovoltaics, National Research Council–Institute of Molecular Science and Technologies, Via Elce di Sotto 8, I-06123 Perugia, Italy
- D3-CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - M. Tuan Trinh
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Prakriti P. Joshi
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics, National Research Council–Institute of Molecular Science and Technologies, Via Elce di Sotto 8, I-06123 Perugia, Italy
- D3-CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Skyler C. Jones
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics, National Research Council–Institute of Molecular Science and Technologies, Via Elce di Sotto 8, I-06123 Perugia, Italy
- D3-CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Corresponding author. (X.-Y.Z.); (F.D.A.)
| | - X.-Y. Zhu
- Department of Chemistry, Columbia University, New York, NY 10027, USA
- Corresponding author. (X.-Y.Z.); (F.D.A.)
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472
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473
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Lee L, Baek J, Park KS, Lee YE, Shrestha NK, Sung MM. Wafer-scale single-crystal perovskite patterned thin films based on geometrically-confined lateral crystal growth. Nat Commun 2017; 8:15882. [PMID: 28691697 PMCID: PMC5508126 DOI: 10.1038/ncomms15882] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 05/11/2017] [Indexed: 12/24/2022] Open
Abstract
We report a facile roll-printing method, geometrically confined lateral crystal growth, for the fabrication of large-scale, single-crystal CH3NH3PbI3 perovskite thin films. Geometrically confined lateral crystal growth is based on transfer of a perovskite ink solution via a patterned rolling mould to a heated substrate, where the solution crystallizes instantly with the immediate evaporation of the solvent. The striking feature of this method is that the instant crystallization of the feeding solution under geometrical confinement leads to the unidirectional lateral growth of single-crystal perovskites. Here, we fabricated single-crystal perovskites in the form of a patterned thin film (3 × 3 inch) with a high carrier mobility of 45.64 cm2 V−1 s−1. We also used these single-crystal perovskite thin films to construct solar cells with a lateral configuration. Their active-area power conversion efficiency shows a highest value of 4.83%, which exceeds the literature efficiency values of lateral perovskite solar cells. Wafer-scale deposition of uniform metal halide perovskite single-crystals is a step towards commercialisation. Using geometrically-confined lateral crystal growth, Lee et al., report patterned thin films of highly-aligned single-crystals and achieve lateral solar cells with efficiencies up to 4.83%.
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Affiliation(s)
- Lynn Lee
- Department of Chemistry, Hanyang University, Seoul 04763, Korea
| | - Jangmi Baek
- Department of Chemistry, Hanyang University, Seoul 04763, Korea
| | - Kyung Sun Park
- Department of Chemistry, Hanyang University, Seoul 04763, Korea
| | - Yong-EunKoo Lee
- Department of Chemistry, Hanyang University, Seoul 04763, Korea
| | - Nabeen K Shrestha
- Department of Chemistry, Hanyang University, Seoul 04763, Korea.,Department of Energy and Materials Engineering, Dongguk University, Seoul 04620, Republic of Korea
| | - Myung M Sung
- Department of Chemistry, Hanyang University, Seoul 04763, Korea
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474
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Diab H, Arnold C, Lédée F, Trippé-Allard G, Delport G, Vilar C, Bretenaker F, Barjon J, Lauret JS, Deleporte E, Garrot D. Impact of Reabsorption on the Emission Spectra and Recombination Dynamics of Hybrid Perovskite Single Crystals. J Phys Chem Lett 2017; 8:2977-2983. [PMID: 28608691 DOI: 10.1021/acs.jpclett.7b00998] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Understanding the surface properties of organic-inorganic lead-based perovskites is of high importance to improve the device's performance. Here, we have investigated the differences between surface and bulk optical properties of CH3NH3PbBr3 single crystals. Depth-resolved cathodoluminescence was used to probe the near-surface region on a depth of a few microns. In addition, we have studied the transmitted luminescence through thicknesses between 50 and 600 μm. In both experiments, the expected spectral shift due to the reabsorption effect has been precisely calculated. We demonstrate that reabsorption explains the important variations reported for the emission energy of single crystals. Single crystals are partially transparent to their own luminescence, and radiative transport is the dominant mechanism for propagation of the excitation in thick crystals. The transmitted luminescence dynamics are characterized by a long rise time and a lengthening of their decay due to photon recycling and light trapping.
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Affiliation(s)
- Hiba Diab
- Laboratoire Aimé Cotton , CNRS, Univ. Paris-Sud, ENS Paris-Saclay, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Christophe Arnold
- Groupe d'Etude de la Matiére Condensée , CNRS, Université de Versailles Saint Quentin En Yvelines, Université Paris-Saclay, 45 Avenue des Etats-Unis, 78035 Versailles, France
| | - Ferdinand Lédée
- Laboratoire Aimé Cotton , CNRS, Univ. Paris-Sud, ENS Paris-Saclay, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Gaëlle Trippé-Allard
- Laboratoire Aimé Cotton , CNRS, Univ. Paris-Sud, ENS Paris-Saclay, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Géraud Delport
- Laboratoire Aimé Cotton , CNRS, Univ. Paris-Sud, ENS Paris-Saclay, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Christèle Vilar
- Groupe d'Etude de la Matiére Condensée , CNRS, Université de Versailles Saint Quentin En Yvelines, Université Paris-Saclay, 45 Avenue des Etats-Unis, 78035 Versailles, France
| | - Fabien Bretenaker
- Laboratoire Aimé Cotton , CNRS, Univ. Paris-Sud, ENS Paris-Saclay, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Julien Barjon
- Groupe d'Etude de la Matiére Condensée , CNRS, Université de Versailles Saint Quentin En Yvelines, Université Paris-Saclay, 45 Avenue des Etats-Unis, 78035 Versailles, France
| | - Jean-Sébastien Lauret
- Laboratoire Aimé Cotton , CNRS, Univ. Paris-Sud, ENS Paris-Saclay, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Emmanuelle Deleporte
- Laboratoire Aimé Cotton , CNRS, Univ. Paris-Sud, ENS Paris-Saclay, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Damien Garrot
- Groupe d'Etude de la Matiére Condensée , CNRS, Université de Versailles Saint Quentin En Yvelines, Université Paris-Saclay, 45 Avenue des Etats-Unis, 78035 Versailles, France
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475
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Chu K, Zhou YH, Song JL, Zhang C. An ABX 3 organic–inorganic perovskite-type material with the formula (C 5 N 2 H 9 )CdCl 3 : Application for detection of volatile organic solvent molecules. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.04.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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476
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Santomauro FG, Grilj J, Mewes L, Nedelcu G, Yakunin S, Rossi T, Capano G, Al Haddad A, Budarz J, Kinschel D, Ferreira DS, Rossi G, Gutierrez Tovar M, Grolimund D, Samson V, Nachtegaal M, Smolentsev G, Kovalenko MV, Chergui M. Localized holes and delocalized electrons in photoexcited inorganic perovskites: Watching each atomic actor by picosecond X-ray absorption spectroscopy. STRUCTURAL DYNAMICS (MELVILLE, N.Y.) 2017; 4:044002. [PMID: 28083541 PMCID: PMC5178717 DOI: 10.1063/1.4971999] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 11/11/2016] [Indexed: 05/07/2023]
Abstract
We report on an element-selective study of the fate of charge carriers in photoexcited inorganic CsPbBr3 and CsPb(ClBr)3 perovskite nanocrystals in toluene solutions using time-resolved X-ray absorption spectroscopy with 80 ps time resolution. Probing the Br K-edge, the Pb L3-edge, and the Cs L2-edge, we find that holes in the valence band are localized at Br atoms, forming small polarons, while electrons appear as delocalized in the conduction band. No signature of either electronic or structural changes is observed at the Cs L2-edge. The results at the Br and Pb edges suggest the existence of a weakly localized exciton, while the absence of signatures at the Cs edge indicates that the Cs+ cation plays no role in the charge transport, at least beyond 80 ps. This first, time-resolved element-specific study of perovskites helps understand the rather modest charge carrier mobilities in these materials.
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Affiliation(s)
- Fabio G Santomauro
- Laboratoire de Spectroscopie Ultrarapide, ISIC-FSB and Lausanne Centre for Ultrafast Science (LACUS), Ecole Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland
| | - Jakob Grilj
- Laboratoire de Spectroscopie Ultrarapide, ISIC-FSB and Lausanne Centre for Ultrafast Science (LACUS), Ecole Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland
| | - Lars Mewes
- Laboratoire de Spectroscopie Ultrarapide, ISIC-FSB and Lausanne Centre for Ultrafast Science (LACUS), Ecole Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland
| | | | | | - Thomas Rossi
- Laboratoire de Spectroscopie Ultrarapide, ISIC-FSB and Lausanne Centre for Ultrafast Science (LACUS), Ecole Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland
| | - Gloria Capano
- Laboratoire de Spectroscopie Ultrarapide, ISIC-FSB and Lausanne Centre for Ultrafast Science (LACUS), Ecole Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland
| | - André Al Haddad
- Laboratoire de Spectroscopie Ultrarapide, ISIC-FSB and Lausanne Centre for Ultrafast Science (LACUS), Ecole Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland
| | - James Budarz
- Laboratoire de Spectroscopie Ultrarapide, ISIC-FSB and Lausanne Centre for Ultrafast Science (LACUS), Ecole Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland
| | - Dominik Kinschel
- Laboratoire de Spectroscopie Ultrarapide, ISIC-FSB and Lausanne Centre for Ultrafast Science (LACUS), Ecole Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland
| | | | - Giacomo Rossi
- Laboratoire de Spectroscopie Ultrarapide, ISIC-FSB and Lausanne Centre for Ultrafast Science (LACUS), Ecole Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland
| | - Mario Gutierrez Tovar
- Laboratoire de Spectroscopie Ultrarapide, ISIC-FSB and Lausanne Centre for Ultrafast Science (LACUS), Ecole Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland
| | | | | | | | | | | | - Majed Chergui
- Laboratoire de Spectroscopie Ultrarapide, ISIC-FSB and Lausanne Centre for Ultrafast Science (LACUS), Ecole Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland
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477
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Wu X, Tan LZ, Shen X, Hu T, Miyata K, Trinh MT, Li R, Coffee R, Liu S, Egger DA, Makasyuk I, Zheng Q, Fry A, Robinson JS, Smith MD, Guzelturk B, Karunadasa HI, Wang X, Zhu X, Kronik L, Rappe AM, Lindenberg AM. Light-induced picosecond rotational disordering of the inorganic sublattice in hybrid perovskites. SCIENCE ADVANCES 2017; 3:e1602388. [PMID: 28782016 PMCID: PMC5529057 DOI: 10.1126/sciadv.1602388] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 06/22/2017] [Indexed: 05/19/2023]
Abstract
Femtosecond resolution electron scattering techniques are applied to resolve the first atomic-scale steps following absorption of a photon in the prototypical hybrid perovskite methylammonium lead iodide. Following above-gap photoexcitation, we directly resolve the transfer of energy from hot carriers to the lattice by recording changes in the mean square atomic displacements on 10-ps time scales. Measurements of the time-dependent pair distribution function show an unexpected broadening of the iodine-iodine correlation function while preserving the Pb-I distance. This indicates the formation of a rotationally disordered halide octahedral structure developing on picosecond time scales. This work shows the important role of light-induced structural deformations within the inorganic sublattice in elucidating the unique optoelectronic functionality exhibited by hybrid perovskites and provides new understanding of hot carrier-lattice interactions, which fundamentally determine solar cell efficiencies.
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Affiliation(s)
- Xiaoxi Wu
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Liang Z. Tan
- The Makineni Theoretical Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104–6323, USA
| | - Xiaozhe Shen
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Te Hu
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
| | - Kiyoshi Miyata
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - M. Tuan Trinh
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Renkai Li
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Ryan Coffee
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Shi Liu
- Extreme Materials Initiative, Geophysical Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA
| | - David A. Egger
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovoth 76100, Israel
| | - Igor Makasyuk
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Qiang Zheng
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Alan Fry
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | | | - Matthew D. Smith
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | - Burak Guzelturk
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | | | - Xijie Wang
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Xiaoyang Zhu
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Leeor Kronik
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovoth 76100, Israel
| | - Andrew M. Rappe
- The Makineni Theoretical Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104–6323, USA
| | - Aaron M. Lindenberg
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
- PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
- Corresponding author.
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478
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Reyes-Martinez MA, Abdelhady AL, Saidaminov MI, Chung DY, Bakr OM, Kanatzidis MG, Soboyejo WO, Loo YL. Time-Dependent Mechanical Response of APbX 3 (A = Cs, CH 3 NH 3 ; X = I, Br) Single Crystals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1606556. [PMID: 28464367 DOI: 10.1002/adma.201606556] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 02/27/2017] [Indexed: 06/07/2023]
Abstract
The ease of processing hybrid organic-inorganic perovskite (HOIPs) films, belonging to a material class with composition ABX3 , from solution and at mild temperatures promises their use in deformable technologies, including flexible photovoltaic devices, sensors, and displays. To successfully apply these materials in deformable devices, knowledge of their mechanical response to dynamic strain is necessary. The authors elucidate the time- and rate-dependent mechanical properties of HOIPs and an inorganic perovskite (IP) single crystal by measuring nanoindentation creep and stress relaxation. The observation of pop-in events and slip bands on the surface of the indented crystals demonstrate dislocation-mediated plastic deformation. The magnitudes of creep and relaxation of both HOIPs and IPs are similar, negating prior hypothesis that the presence of organic A-site cations alters the mechanical response of these materials. Moreover, these samples exhibit a pronounced increase in creep, and stress relaxation as a function of indentation rate whose magnitudes reflect differences in the rates of nucleation and propagation of dislocations within the crystal structures of HOIPs and IP. This contribution provides understanding that is critical for designing perovskite devices capable of withstanding mechanical deformations.
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Affiliation(s)
- Marcos A Reyes-Martinez
- Intelligence Community Postdoctoral Research Fellowship Program, Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ, 08544, USA
| | - Ahmed L Abdelhady
- Department of Materials Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Makhsud I Saidaminov
- Department of Materials Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Duck Young Chung
- Materials Science Division, Argonne National Laboratory, Argonne, IL, 60439, USA
| | - Osman M Bakr
- Department of Materials Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Mercouri G Kanatzidis
- Materials Science Division, Argonne National Laboratory, Argonne, IL, 60439, USA
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Wole O Soboyejo
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ, 08544, USA
| | - Yueh-Lin Loo
- Department of Chemical and Biological Engineering, and, Andlinger Center for Energy and the Environment, Princeton University, Princeton, NJ, 08544, USA
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479
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Luo L, Men L, Liu Z, Mudryk Y, Zhao X, Yao Y, Park JM, Shinar R, Shinar J, Ho KM, Perakis IE, Vela J, Wang J. Ultrafast terahertz snapshots of excitonic Rydberg states and electronic coherence in an organometal halide perovskite. Nat Commun 2017; 8:15565. [PMID: 28569753 PMCID: PMC5461501 DOI: 10.1038/ncomms15565] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Accepted: 04/11/2017] [Indexed: 11/30/2022] Open
Abstract
How photoexcitations evolve into Coulomb-bound electron and hole pairs, called excitons, and unbound charge carriers is a key cross-cutting issue in photovoltaics and optoelectronics. Until now, the initial quantum dynamics following photoexcitation remains elusive in the hybrid perovskite system. Here we reveal excitonic Rydberg states with distinct formation pathways by observing the multiple resonant, internal quantum transitions using ultrafast terahertz quasi-particle transport. Nonequilibrium emergent states evolve with a complex co-existence of excitons, carriers and phonons, where a delayed buildup of excitons under on- and off-resonant pumping conditions allows us to distinguish between the loss of electronic coherence and hot state cooling processes. The nearly ∼1 ps dephasing time, efficient electron scattering with discrete terahertz phonons and intermediate binding energy of ∼13.5 meV in perovskites are distinct from conventional photovoltaic semiconductors. In addition to providing implications for coherent energy conversion, these are potentially relevant to the development of light-harvesting and electron-transport devices.
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Affiliation(s)
- Liang Luo
- Division of Materials Science and Engineering, Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - Long Men
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA
- Division of Chemical and Biological Sciences, Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | - Zhaoyu Liu
- Division of Materials Science and Engineering, Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - Yaroslav Mudryk
- Division of Materials Science and Engineering, Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | - Xin Zhao
- Division of Materials Science and Engineering, Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - Yongxin Yao
- Division of Materials Science and Engineering, Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - Joong M. Park
- Division of Materials Science and Engineering, Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - Ruth Shinar
- Division of Materials Science and Engineering, Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | - Joseph Shinar
- Division of Materials Science and Engineering, Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - Kai-Ming Ho
- Division of Materials Science and Engineering, Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - Ilias E. Perakis
- Department of Physics, University of Alabama at Birmingham, Birmingham, Alabama 35294-1170, USA
| | - Javier Vela
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA
- Division of Chemical and Biological Sciences, Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | - Jigang Wang
- Division of Materials Science and Engineering, Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
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480
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Chen W, Bhaumik S, Veldhuis SA, Xing G, Xu Q, Grätzel M, Mhaisalkar S, Mathews N, Sum TC. Giant five-photon absorption from multidimensional core-shell halide perovskite colloidal nanocrystals. Nat Commun 2017; 8:15198. [PMID: 28497780 PMCID: PMC5437305 DOI: 10.1038/ncomms15198] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 03/09/2017] [Indexed: 12/23/2022] Open
Abstract
Multiphoton absorption processes enable many technologically important applications, such as in vivo imaging, photodynamic therapy and optical limiting, and so on. Specifically, higher-order nonlinear absorption such as five-photon absorption offers significant advantages of greater spatial confinement, increased penetration depth, reduced autofluorescence, enhanced sensitivity and improved resolution over lower orders in bioimaging. Organic chromophores and conventional semiconductor nanocrystals are leaders in two-/three-photon absorption applications, but face considerable challenges from their small five-photon action cross-sections. Herein, we reveal that the family of halide perovskite colloidal nanocrystals transcend these constraints with highly efficient five-photon-excited upconversion fluorescence-unprecedented for semiconductor nanocrystals. Amazingly, their multidimensional type I (both conduction and valence band edges of core lie within bandgap of shell) core-shell (three-dimensional methylammonium lead bromide/two-dimensional octylammonium lead bromide) perovskite nanocrystals exhibit five-photon action cross-sections that are at least 9 orders larger than state-of-the-art specially designed organic molecules. Importantly, this family of halide perovskite nanocrystals may enable fresh approaches for next-generation multiphoton imaging applications.
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Affiliation(s)
- Weiqiang Chen
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University (NTU), 21 Nanyang Link, SPMS-PAP 03-05, Singapore 637371, Singapore
| | - Saikat Bhaumik
- Energy Research Institute @ NTU (ERI@N), Research Techno Plaza, X-Frontier Block, Level 5, 50 Nanyang Drive, Singapore 637553, Singapore
| | - Sjoerd A Veldhuis
- Energy Research Institute @ NTU (ERI@N), Research Techno Plaza, X-Frontier Block, Level 5, 50 Nanyang Drive, Singapore 637553, Singapore
| | - Guichuan Xing
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University (NTU), 21 Nanyang Link, SPMS-PAP 03-05, Singapore 637371, Singapore
| | - Qiang Xu
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University (NTU), 21 Nanyang Link, SPMS-PAP 03-05, Singapore 637371, Singapore
| | - Michael Grätzel
- Energy Research Institute @ NTU (ERI@N), Research Techno Plaza, X-Frontier Block, Level 5, 50 Nanyang Drive, Singapore 637553, Singapore.,Laboratory of Photonics and Interfaces, Department of Chemistry and Chemical Engineering, Swiss Federal Institute of Technology, Station 6, Lausanne 1015, Switzerland
| | - Subodh Mhaisalkar
- Energy Research Institute @ NTU (ERI@N), Research Techno Plaza, X-Frontier Block, Level 5, 50 Nanyang Drive, Singapore 637553, Singapore.,School of Materials Science and Engineering, NTU, Nanyang Avenue, Singapore 639798, Singapore
| | - Nripan Mathews
- Energy Research Institute @ NTU (ERI@N), Research Techno Plaza, X-Frontier Block, Level 5, 50 Nanyang Drive, Singapore 637553, Singapore.,School of Materials Science and Engineering, NTU, Nanyang Avenue, Singapore 639798, Singapore
| | - Tze Chien Sum
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University (NTU), 21 Nanyang Link, SPMS-PAP 03-05, Singapore 637371, Singapore
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481
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Zhang F, Yang B, Mao X, Yang R, Jiang L, Li Y, Xiong J, Yang Y, He R, Deng W, Han K. Perovskite CH 3NH 3PbI 3-xBr x Single Crystals with Charge-Carrier Lifetimes Exceeding 260 μs. ACS APPLIED MATERIALS & INTERFACES 2017; 9:14827-14832. [PMID: 28397493 DOI: 10.1021/acsami.7b01696] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The long carrier lifetimes in perovskite single crystals have drawn significant attention recently on account of their irreplaceable contribution to high-performance photovoltaic (PV) devices. Herein, the optical and optoelectronic properties of CH3NH3PbI3 and CH3NH3PbI3-xBrx (with five different contents of Br doped) single crystals were investigated. Notably, a superior carrier lifetime of up to 262 μs was observed in the CH3NH3PbI3-xBrx (I/Br = 10:1 in the precursor) single-crystal PV device under 1 sun illumination, which is two times longer than that in the CH3NH3PbI3 single crystal. Further study confirmed that the ultralong carrier lifetime was ascribed to the integrated superiority derived from both the low trap-state density and high charge-injection efficiency of the device interface. On this basis, appropriate incorporation of Br is useful in the design of better PV devices.
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Affiliation(s)
- Fengying Zhang
- Key Laboratory of Luminescence and Real-Time Analytical chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, China
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science , Dalian 116023, China
| | - Bin Yang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science , Dalian 116023, China
| | - Xin Mao
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science , Dalian 116023, China
| | - Ruixia Yang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science , Dalian 116023, China
| | - Lei Jiang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science , Dalian 116023, China
| | - Yajuan Li
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science , Dalian 116023, China
| | - Jian Xiong
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science , Dalian 116023, China
| | - Yang Yang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science , Dalian 116023, China
| | - Rongxing He
- Key Laboratory of Luminescence and Real-Time Analytical chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, China
| | - Weiqiao Deng
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science , Dalian 116023, China
| | - Keli Han
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science , Dalian 116023, China
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482
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Lee S, Jo W, Cho YC, Lee HH, Lee GW. Solution electrostatic levitator for measuring surface properties and bulk structures of an extremely supersaturated solution drop above metastable zone width limit. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2017; 88:055101. [PMID: 28571425 DOI: 10.1063/1.4982363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report on the first integrated apparatus for measuring surface and thermophysical properties and bulk structures of a highly supersaturated solution by combining electrostatic levitation with real-time laser/x-ray scattering. Even today, a proper characterization of supersaturated solutions far above their solubility limits is extremely challenging because heterogeneous nucleation sites such as container walls or impurities readily initiate crystallization before the measurements can be performed. In this work, we demonstrate simultaneous measurements of drying kinetics and surface tension of a potassium dihydrogen phosphate (KH2PO4) aqueous solution droplet and its bulk structural evolution beyond the metastable zone width limit. Our experimental finding shows that the noticeable changes of the surface properties are accompanied by polymerizations of hydrated monomer clusters. The novel electrostatic levitation apparatus presented here provides an effective means for studying a wide range of highly concentrated solutions and liquids in deep metastable states.
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Affiliation(s)
- Sooheyong Lee
- Center for Creative Convergence Research, Korea Research Institute of Standards and Science (KRISS), Daejeon 305-600, South Korea
| | - Wonhyuk Jo
- Center for Creative Convergence Research, Korea Research Institute of Standards and Science (KRISS), Daejeon 305-600, South Korea
| | - Yong Chan Cho
- Center for Creative Convergence Research, Korea Research Institute of Standards and Science (KRISS), Daejeon 305-600, South Korea
| | - Hyun Hwi Lee
- Pohang Light Source, Pohang Accelerator Laboratory (PAL), Pohang 790-784, South Korea
| | - Geun Woo Lee
- Center for Creative Convergence Research, Korea Research Institute of Standards and Science (KRISS), Daejeon 305-600, South Korea
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483
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Zuo C, Ding L. Lead-free Perovskite Materials (NH 4 ) 3 Sb 2 I x Br 9-x. Angew Chem Int Ed Engl 2017; 56:6528-6532. [PMID: 28452412 DOI: 10.1002/anie.201702265] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 04/01/2017] [Indexed: 11/07/2022]
Abstract
A family of perovskite light absorbers (NH4 )3 Sb2 Ix Br9-x (0≤x≤9) was prepared. These materials show good solubility in ethanol, a low-cost, hypotoxic, and environmentally friendly solvent. The light absorption of (NH4 )3 Sb2 Ix Br9-x films can be tuned by adjusting I and Br content. The absorption onset for (NH4 )3 Sb2 Ix Br9-x films changes from 558 nm to 453 nm as x changes from 9 to 0. (NH4 )3 Sb2 I9 single crystals were prepared, exhibiting a hole mobility of 4.8 cm2 V-1 s-1 and an electron mobility of 12.3 cm2 V-1 s-1 . (NH4 )3 Sb2 I9 solar cells gave an open-circuit voltage of 1.03 V and a power conversion efficiency of 0.51 %.
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Affiliation(s)
- Chuantian Zuo
- Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Liming Ding
- Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
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484
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Affiliation(s)
- Chuantian Zuo
- Center for Excellence in Nanoscience (CAS); Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS); National Center for Nanoscience and Technology; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Liming Ding
- Center for Excellence in Nanoscience (CAS); Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS); National Center for Nanoscience and Technology; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
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485
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Deng W, Huang L, Xu X, Zhang X, Jin X, Lee ST, Jie J. Ultrahigh-Responsivity Photodetectors from Perovskite Nanowire Arrays for Sequentially Tunable Spectral Measurement. NANO LETTERS 2017; 17:2482-2489. [PMID: 28231011 DOI: 10.1021/acs.nanolett.7b00166] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Compared with polycrystalline films, single-crystalline methylammonium lead halide (MAPbX3, X = halogen) perovskite nanowires (NWs) with well-defined structure possess superior optoelectronic properties for optoelectronic applications. However, most of the prepared perovskite NWs exhibit properties below expectations due to poor crystalline quality and rough surfaces. It also remains a challenge to achieve aligned growth of single-crystalline perovskite NWs for integrated device applications. Here, we report a facile fluid-guided antisolvent vapor-assisted crystallization (FGAVC) method for large-scale fabrication of high-quality single-crystalline MAPb(I1-xBrx)3 (x = 0, 0.1, 0.2, 0.3, 0.4) NW arrays. The resultant perovskite NWs showed smooth surfaces due to slow crystallization process and moisture-isolated growth environment. Significantly, photodetectors made from the NW arrays exhibited outstanding performance in respect of ultrahigh responsivity of 12 500 A W-1, broad linear dynamic rang (LDR) of 150 dB, and robust stability. The responsivity represents the best value ever reported for perovskite-based photodetectors. Moreover, the spectral response of the MAPb(I1-xBrx)3 NW arrays could be sequentially tuned by varying the content of x = 0-0.4. On the basis of this feature, the NW arrays were monolithically integrated to form a unique system for directly measuring light wavelength. Our work would open a new avenue for the fabrication of high-performance, integrated optoelectronic devices from the perovskite NW arrays.
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Affiliation(s)
- Wei Deng
- Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University , Suzhou Jiangsu 215123, People's Republic of China
| | - Liming Huang
- Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University , Suzhou Jiangsu 215123, People's Republic of China
| | - Xiuzhen Xu
- Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University , Suzhou Jiangsu 215123, People's Republic of China
| | - Xiujuan Zhang
- Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University , Suzhou Jiangsu 215123, People's Republic of China
| | - Xiangcheng Jin
- Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University , Suzhou Jiangsu 215123, People's Republic of China
| | - Shuit-Tong Lee
- Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University , Suzhou Jiangsu 215123, People's Republic of China
| | - Jiansheng Jie
- Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University , Suzhou Jiangsu 215123, People's Republic of China
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486
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Kollár M, Ćirić L, Dil JH, Weber A, Muff S, Ronnow HM, Náfrádi B, Monnier BP, Luterbacher JS, Forró L, Horváth E. Clean, cleaved surfaces of the photovoltaic perovskite. Sci Rep 2017; 7:695. [PMID: 28386124 PMCID: PMC5429655 DOI: 10.1038/s41598-017-00799-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 03/13/2017] [Indexed: 11/17/2022] Open
Abstract
The surface of a material is not only a window into its bulk physical properties, but also hosts unique phenomena important for understanding the properties of a solid as a whole. Surface sensitive techniques, like ARPES (Angle-resolved photoemission spectroscopy), STM (Scanning tunneling microscopy), AFM (Atomic force microscopy), pump-probe optical measurements etc. require flat, clean surfaces. These can be obtained by cleaving, which is usually possible for layered materials. Such measurements have proven their worth by providing valuable information about cuprate superconductors, graphene, transition metal dichalcogenides, topological insulators and many other novel materials. Unfortunately, this was so far not the case for the cubic, organo-metallic photovoltaic perovskite which morsels during the cleavage. Here we show a method which results in flat, clean surfaces of CH3NH3PbBr3 which allows surface sensitive measurements, badly needed for the understanding and further engineering of this material family.
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Affiliation(s)
- Márton Kollár
- Institute of Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015, Lausanne, Switzerland
| | - Luka Ćirić
- Institute of Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015, Lausanne, Switzerland
| | - J Hugo Dil
- Institute of Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015, Lausanne, Switzerland
- Swiss Light Source, Paul Scherrer Institute, CH-5232, Villigen, Switzerland
| | - Andrew Weber
- Institute of Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015, Lausanne, Switzerland
- Swiss Light Source, Paul Scherrer Institute, CH-5232, Villigen, Switzerland
| | - Stefan Muff
- Institute of Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015, Lausanne, Switzerland
- Swiss Light Source, Paul Scherrer Institute, CH-5232, Villigen, Switzerland
| | - Henrik M Ronnow
- Institute of Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015, Lausanne, Switzerland
| | - Bálint Náfrádi
- Institute of Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015, Lausanne, Switzerland
| | - Benjamin Pierre Monnier
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, CH-1015, Lausanne, Switzerland
| | - Jeremy Scott Luterbacher
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, CH-1015, Lausanne, Switzerland
| | - László Forró
- Institute of Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015, Lausanne, Switzerland.
| | - Endre Horváth
- Institute of Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015, Lausanne, Switzerland
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487
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Ding J, Zhao Y, Sun Y, Du S, Cui H, Jing L, Cheng X, Zuo Z, Zhan X. Atomic force microscopy investigation of a step generation and bunching on the (100) facet of a CH3
NH3
PbI3
crystal, grown from γ-Butyrolactone. CRYSTAL RESEARCH AND TECHNOLOGY 2017. [DOI: 10.1002/crat.201700021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jianxu Ding
- College of Materials Science and Engineering; Shandong University of Science and Technology; Qingdao 266590 China
- State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology; Shandong University of Science and Technology; Qingdao 266590 China
| | - Ying Zhao
- College of Materials Science and Engineering; Shandong University of Science and Technology; Qingdao 266590 China
| | - Yingshuang Sun
- College of Materials Science and Engineering; Shandong University of Science and Technology; Qingdao 266590 China
| | - Songjie Du
- College of Materials Science and Engineering; Shandong University of Science and Technology; Qingdao 266590 China
| | - Hongzhi Cui
- College of Materials Science and Engineering; Shandong University of Science and Technology; Qingdao 266590 China
| | - Lin Jing
- College of Materials Science and Engineering; Shandong University of Science and Technology; Qingdao 266590 China
| | - Xiaohua Cheng
- College of Materials Science and Engineering; Shandong University of Science and Technology; Qingdao 266590 China
| | - Zhiyuan Zuo
- Advanced Research Center for Optics; Shandong University; Jinan 250100 China
| | - Xiaoyuan Zhan
- College of Materials Science and Engineering; Shandong University of Science and Technology; Qingdao 266590 China
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488
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Strelcov E, Dong Q, Li T, Chae J, Shao Y, Deng Y, Gruverman A, Huang J, Centrone A. CH 3NH 3PbI 3 perovskites: Ferroelasticity revealed. SCIENCE ADVANCES 2017; 3:e1602165. [PMID: 28439542 PMCID: PMC5392022 DOI: 10.1126/sciadv.1602165] [Citation(s) in RCA: 151] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 02/19/2017] [Indexed: 05/05/2023]
Abstract
Ferroelectricity has been proposed as a plausible mechanism to explain the high photovoltaic conversion efficiency in organic-inorganic perovskites; however, convincing experimental evidence in support of this hypothesis is still missing. Identifying and distinguishing ferroelectricity from other properties, such as piezoelectricity, ferroelasticity, etc., is typically nontrivial because these phenomena can coexist in many materials. In this work, a combination of microscopic and nanoscale techniques provides solid evidence for the existence of ferroelastic domains in both CH3NH3PbI3 polycrystalline films and single crystals in the pristine state and under applied stress. Experiments show that the configuration of CH3NH3PbI3 ferroelastic domains in single crystals and polycrystalline films can be controlled with applied stress, suggesting that strain engineering may be used to tune the properties of this material. No evidence of concomitant ferroelectricity was observed. Because grain boundaries have an impact on the long-term stability of organic-inorganic perovskite devices, and because the ferroelastic domain boundaries may differ from regular grain boundaries, the discovery of ferroelasticity provides a new variable to consider in the quest for improving their stability and enabling their widespread adoption.
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Affiliation(s)
- Evgheni Strelcov
- Center for Nanoscale Science and Technology, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA
- Maryland Nanocenter, University of Maryland, College Park, MD 20742, USA
| | - Qingfeng Dong
- Department of Mechanical and Materials Engineering, University of Nebraska–Lincoln, Lincoln, NE 68588, USA
| | - Tao Li
- Department of Physics and Astronomy, University of Nebraska–Lincoln, Lincoln, NE 68588, USA
| | - Jungseok Chae
- Center for Nanoscale Science and Technology, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA
- Maryland Nanocenter, University of Maryland, College Park, MD 20742, USA
| | - Yuchuan Shao
- Department of Mechanical and Materials Engineering, University of Nebraska–Lincoln, Lincoln, NE 68588, USA
- Department of Physics and Astronomy, University of Nebraska–Lincoln, Lincoln, NE 68588, USA
| | - Yehao Deng
- Department of Mechanical and Materials Engineering, University of Nebraska–Lincoln, Lincoln, NE 68588, USA
- Department of Physics and Astronomy, University of Nebraska–Lincoln, Lincoln, NE 68588, USA
| | - Alexei Gruverman
- Department of Physics and Astronomy, University of Nebraska–Lincoln, Lincoln, NE 68588, USA
| | - Jinsong Huang
- Department of Mechanical and Materials Engineering, University of Nebraska–Lincoln, Lincoln, NE 68588, USA
| | - Andrea Centrone
- Center for Nanoscale Science and Technology, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA
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489
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Li F, Wang H, Kufer D, Liang L, Yu W, Alarousu E, Ma C, Li Y, Liu Z, Liu C, Wei N, Wang F, Chen L, Mohammed OF, Fratalocchi A, Liu X, Konstantatos G, Wu T. Ultrahigh Carrier Mobility Achieved in Photoresponsive Hybrid Perovskite Films via Coupling with Single-Walled Carbon Nanotubes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29. [PMID: 28225207 DOI: 10.1002/adma.201602432] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 11/23/2016] [Indexed: 05/07/2023]
Abstract
Organolead trihalide perovskites have drawn substantial interest for photovoltaic and optoelectronic applications due to their remarkable physical properties and low processing cost. However, perovskite thin films suffer from low carrier mobility as a result of their structural imperfections such as grain boundaries and pinholes, limiting their device performance and application potential. Here we demonstrate a simple and straightforward synthetic strategy based on coupling perovskite films with embedded single-walled carbon nanotubes. We are able to significantly enhance the hole and electron mobilities of the perovskite film to record-high values of 595.3 and 108.7 cm2 V-1 s-1 , respectively. Such a synergistic effect can be harnessed to construct ambipolar phototransistors with an ultrahigh detectivity of 3.7 × 1014 Jones and a responsivity of 1 × 104 A W-1 , on a par with the best devices available to date. The perovskite/carbon nanotube hybrids should provide a platform that is highly desirable for fields as diverse as optoelectronics, solar energy conversion, and molecular sensing.
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Affiliation(s)
- Feng Li
- Materials Science and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Hong Wang
- Materials Science and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Dominik Kufer
- ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park, 08860, Castelldefels, Barcelona, Spain
| | - Liangliang Liang
- Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
| | - Weili Yu
- Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Erkki Alarousu
- Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Chun Ma
- Materials Science and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Yangyang Li
- Materials Science and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Zhixiong Liu
- Materials Science and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Changxu Liu
- PRIMALIGHT, Faculty of Electrical Engineering, Applied Mathematics and Computational Science, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Nini Wei
- Core lab, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Fei Wang
- Department of Electronic and Electrical Engineering, South University of Science and Technology of China, Shenzhen, 518055, P. R. China
| | - Lang Chen
- Department of Physics, South University of Science and Technology of China, Shenzhen, 518055, P. R. China
| | - Omar F Mohammed
- Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Andrea Fratalocchi
- PRIMALIGHT, Faculty of Electrical Engineering, Applied Mathematics and Computational Science, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Xiaogang Liu
- Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
| | - Gerasimos Konstantatos
- ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park, 08860, Castelldefels, Barcelona, Spain
- ICREA-Institució Catalana de Recerca i Estudis Avançats, Passeig Lluís Companys 23, 08010, Barcelona, Spain
| | - Tom Wu
- Materials Science and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
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490
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Rao HS, Li WG, Chen BX, Kuang DB, Su CY. In Situ Growth of 120 cm 2 CH 3 NH 3 PbBr 3 Perovskite Crystal Film on FTO Glass for Narrowband-Photodetectors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1602639. [PMID: 28220970 DOI: 10.1002/adma.201602639] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 10/12/2016] [Indexed: 06/06/2023]
Abstract
Organometal trihalide perovskites have been attracting intense attention due to their enthralling optoelectric characteristics. Thus far, most applications focus on polycrystalline perovskite, which however, is overshadowed by single crystal perovskite with superior properties such as low trap density, high mobility, and long carrier diffusion length. In spite of the inherent advantages and significant optoelectronic applications in solar cells and photodetectors, the fabrication of large-area laminar perovskite single crystals is challenging. In this report, an ingenious space-limited inverse temperature crystallization method is first demonstrated to the in situ synthesis of 120 cm2 large-area CH3 NH3 PbBr3 crystal film on fluorine-doped tin oxide (FTO) glass. Such CH3 NH3 PbBr3 perovskite crystal film is successfully applied to narrowband photodetectors, which enables a broad linear response range of 10-4 -102 mW cm-2 , 3 dB cutoff frequency (f 3 dB ) of ≈110 kHz, and high narrow response under low bias -1 V.
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Affiliation(s)
- Hua-Shang Rao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Wen-Guang Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Bai-Xue Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Dai-Bin Kuang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Cheng-Yong Su
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
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491
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Protesescu L, Yakunin S, Kumar S, Bär J, Bertolotti F, Masciocchi N, Guagliardi A, Grotevent M, Shorubalko I, Bodnarchuk MI, Shih CJ, Kovalenko MV. Dismantling the "Red Wall" of Colloidal Perovskites: Highly Luminescent Formamidinium and Formamidinium-Cesium Lead Iodide Nanocrystals. ACS NANO 2017; 11:3119-3134. [PMID: 28231432 PMCID: PMC5800405 DOI: 10.1021/acsnano.7b00116] [Citation(s) in RCA: 177] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 02/23/2017] [Indexed: 05/21/2023]
Abstract
Colloidal nanocrystals (NCs) of APbX3-type lead halide perovskites [A = Cs+, CH3NH3+ (methylammonium or MA+) or CH(NH2)2+ (formamidinium or FA+); X = Cl-, Br-, I-] have recently emerged as highly versatile photonic sources for applications ranging from simple photoluminescence down-conversion (e.g., for display backlighting) to light-emitting diodes. From the perspective of spectral coverage, a formidable challenge facing the use of these materials is how to obtain stable emissions in the red and infrared spectral regions covered by the iodide-based compositions. So far, red-emissive CsPbI3 NCs have been shown to suffer from a delayed phase transformation into a nonluminescent, wide-band-gap 1D polymorph, and MAPbI3 exhibits very limited chemical durability. In this work, we report a facile colloidal synthesis method for obtaining FAPbI3 and FA-doped CsPbI3 NCs that are uniform in size (10-15 nm) and nearly cubic in shape and exhibit drastically higher robustness than their MA- or Cs-only cousins with similar sizes and morphologies. Detailed structural analysis indicated that the FAPbI3 NCs had a cubic crystal structure, while the FA0.1Cs0.9PbI3 NCs had a 3D orthorhombic structure that was isostructural to the structure of CsPbBr3 NCs. Bright photoluminescence (PL) with high quantum yield (QY > 70%) spanning red (690 nm, FA0.1Cs0.9PbI3 NCs) and near-infrared (near-IR, ca. 780 nm, FAPbI3 NCs) regions was sustained for several months or more in both the colloidal state and in films. The peak PL wavelengths can be fine-tuned by using postsynthetic cation- and anion-exchange reactions. Amplified spontaneous emissions with low thresholds of 28 and 7.5 μJ cm-2 were obtained from the films deposited from FA0.1Cs0.9PbI3 and FAPbI3 NCs, respectively. Furthermore, light-emitting diodes with a high external quantum efficiency of 2.3% were obtained by using FAPbI3 NCs.
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Affiliation(s)
- Loredana Protesescu
- Institute
of Inorganic Chemistry and Institute of Chemical and Bioengineering,
Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics and Laboratory for Reliability Science and
Technology, Empa−Swiss Federal Laboratories
for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Sergii Yakunin
- Institute
of Inorganic Chemistry and Institute of Chemical and Bioengineering,
Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics and Laboratory for Reliability Science and
Technology, Empa−Swiss Federal Laboratories
for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Sudhir Kumar
- Institute
of Inorganic Chemistry and Institute of Chemical and Bioengineering,
Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
| | - Janine Bär
- Institute
of Inorganic Chemistry and Institute of Chemical and Bioengineering,
Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
| | - Federica Bertolotti
- Dipartimento
di Scienza e Alta Tecnologia and To.Sca.Lab, Università dell’Insubria, Via Valleggio 11, I-22100 Como, Italy
| | - Norberto Masciocchi
- Dipartimento
di Scienza e Alta Tecnologia and To.Sca.Lab, Università dell’Insubria, Via Valleggio 11, I-22100 Como, Italy
| | - Antonietta Guagliardi
- Dipartimento
di Scienza e Alta Tecnologia and To.Sca.Lab, Università dell’Insubria, Via Valleggio 11, I-22100 Como, Italy
- Istituto
di Crystallografia and To.Sca.Lab, Consiglio
Nazionale delle Ricerche, Valleggio 11, I-22100 Como, Italy
| | - Matthias Grotevent
- Institute
of Inorganic Chemistry and Institute of Chemical and Bioengineering,
Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics and Laboratory for Reliability Science and
Technology, Empa−Swiss Federal Laboratories
for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Ivan Shorubalko
- Laboratory for Thin Films and Photovoltaics and Laboratory for Reliability Science and
Technology, Empa−Swiss Federal Laboratories
for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Maryna I. Bodnarchuk
- Institute
of Inorganic Chemistry and Institute of Chemical and Bioengineering,
Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics and Laboratory for Reliability Science and
Technology, Empa−Swiss Federal Laboratories
for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Chih-Jen Shih
- Institute
of Inorganic Chemistry and Institute of Chemical and Bioengineering,
Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
| | - Maksym V. Kovalenko
- Institute
of Inorganic Chemistry and Institute of Chemical and Bioengineering,
Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics and Laboratory for Reliability Science and
Technology, Empa−Swiss Federal Laboratories
for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
- E-mail:
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492
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Protesescu L, Yakunin S, Kumar S, Bär J, Bertolotti F, Masciocchi N, Guagliardi A, Grotevent M, Shorubalko I, Bodnarchuk MI, Shih CJ, Kovalenko MV. Dismantling the "Red Wall" of Colloidal Perovskites: Highly Luminescent Formamidinium and Formamidinium-Cesium Lead Iodide Nanocrystals. ACS NANO 2017; 11:3119-3134. [PMID: 28231432 DOI: 10.1021/acsnano.7b00116/suppl_file/nn7b00116_si_001.pdf] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Colloidal nanocrystals (NCs) of APbX3-type lead halide perovskites [A = Cs+, CH3NH3+ (methylammonium or MA+) or CH(NH2)2+ (formamidinium or FA+); X = Cl-, Br-, I-] have recently emerged as highly versatile photonic sources for applications ranging from simple photoluminescence down-conversion (e.g., for display backlighting) to light-emitting diodes. From the perspective of spectral coverage, a formidable challenge facing the use of these materials is how to obtain stable emissions in the red and infrared spectral regions covered by the iodide-based compositions. So far, red-emissive CsPbI3 NCs have been shown to suffer from a delayed phase transformation into a nonluminescent, wide-band-gap 1D polymorph, and MAPbI3 exhibits very limited chemical durability. In this work, we report a facile colloidal synthesis method for obtaining FAPbI3 and FA-doped CsPbI3 NCs that are uniform in size (10-15 nm) and nearly cubic in shape and exhibit drastically higher robustness than their MA- or Cs-only cousins with similar sizes and morphologies. Detailed structural analysis indicated that the FAPbI3 NCs had a cubic crystal structure, while the FA0.1Cs0.9PbI3 NCs had a 3D orthorhombic structure that was isostructural to the structure of CsPbBr3 NCs. Bright photoluminescence (PL) with high quantum yield (QY > 70%) spanning red (690 nm, FA0.1Cs0.9PbI3 NCs) and near-infrared (near-IR, ca. 780 nm, FAPbI3 NCs) regions was sustained for several months or more in both the colloidal state and in films. The peak PL wavelengths can be fine-tuned by using postsynthetic cation- and anion-exchange reactions. Amplified spontaneous emissions with low thresholds of 28 and 7.5 μJ cm-2 were obtained from the films deposited from FA0.1Cs0.9PbI3 and FAPbI3 NCs, respectively. Furthermore, light-emitting diodes with a high external quantum efficiency of 2.3% were obtained by using FAPbI3 NCs.
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Affiliation(s)
| | | | | | | | - Federica Bertolotti
- Dipartimento di Scienza e Alta Tecnologia and To.Sca.Lab, Università dell'Insubria , Via Valleggio 11, I-22100 Como, Italy
| | - Norberto Masciocchi
- Dipartimento di Scienza e Alta Tecnologia and To.Sca.Lab, Università dell'Insubria , Via Valleggio 11, I-22100 Como, Italy
| | - Antonietta Guagliardi
- Dipartimento di Scienza e Alta Tecnologia and To.Sca.Lab, Università dell'Insubria , Via Valleggio 11, I-22100 Como, Italy
- Istituto di Crystallografia and To.Sca.Lab, Consiglio Nazionale delle Ricerche , Valleggio 11, I-22100 Como, Italy
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493
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Zhang J, Yang X, Deng H, Qiao K, Farooq U, Ishaq M, Yi F, Liu H, Tang J, Song H. Low -Dimensional Halide Perovskites and Their Advanced Optoelectronic Applications. NANO-MICRO LETTERS 2017; 9:36. [PMID: 30393731 PMCID: PMC6199035 DOI: 10.1007/s40820-017-0137-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 01/16/2017] [Indexed: 05/21/2023]
Abstract
Metal halide perovskites are crystalline materials originally developed out of scientific curiosity. They have shown great potential as active materials in optoelectronic applications. In the last 6 years, their certified photovoltaic efficiencies have reached 22.1%. Compared to bulk halide perovskites, low-dimensional ones exhibited novel physical properties. The photoluminescence quantum yields of perovskite quantum dots are close to 100%. The external quantum efficiencies and current efficiencies of perovskite quantum dot light-emitting diodes have reached 8% and 43 cd A-1, respectively, and their nanowire lasers show ultralow-threshold room-temperature lasing with emission tunability and ease of synthesis. Perovskite nanowire photodetectors reached a responsivity of 10 A W-1 and a specific normalized detectivity of the order of 1012 Jones. Different from most reported reviews focusing on photovoltaic applications, we summarize the rapid progress in the study of low-dimensional perovskite materials, as well as their promising applications in optoelectronic devices. In particular, we review the wide tunability of fabrication methods and the state-of-the-art research outputs of low-dimensional perovskite optoelectronic devices. Finally, the anticipated challenges and potential for this exciting research are proposed.
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Affiliation(s)
- Jian Zhang
- Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074 Hubei People’s Republic of China
| | - Xiaokun Yang
- Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074 Hubei People’s Republic of China
| | - Hui Deng
- Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074 Hubei People’s Republic of China
| | - Keke Qiao
- Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074 Hubei People’s Republic of China
| | - Umar Farooq
- Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074 Hubei People’s Republic of China
| | - Muhammad Ishaq
- Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074 Hubei People’s Republic of China
| | - Fei Yi
- School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074 Hubei People’s Republic of China
| | - Huan Liu
- School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074 Hubei People’s Republic of China
| | - Jiang Tang
- Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074 Hubei People’s Republic of China
| | - Haisheng Song
- Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074 Hubei People’s Republic of China
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494
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Sarmah SP, Burlakov VM, Yengel E, Murali B, Alarousu E, El-Zohry AM, Yang C, Alias MS, Zhumekenov AA, Saidaminov MI, Cho N, Wehbe N, Mitra S, Ajia I, Dey S, Mansour AE, Abdelsamie M, Amassian A, Roqan IS, Ooi BS, Goriely A, Bakr OM, Mohammed OF. Double Charged Surface Layers in Lead Halide Perovskite Crystals. NANO LETTERS 2017; 17:2021-2027. [PMID: 28145714 DOI: 10.1021/acs.nanolett.7b00031] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Understanding defect chemistry, particularly ion migration, and its significant effect on the surface's optical and electronic properties is one of the major challenges impeding the development of hybrid perovskite-based devices. Here, using both experimental and theoretical approaches, we demonstrated that the surface layers of the perovskite crystals may acquire a high concentration of positively charged vacancies with the complementary negatively charged halide ions pushed to the surface. This charge separation near the surface generates an electric field that can induce an increase of optical band gap in the surface layers relative to the bulk. We found that the charge separation, electric field, and the amplitude of shift in the bandgap strongly depend on the halides and organic moieties of perovskite crystals. Our findings reveal the peculiarity of surface effects that are currently limiting the applications of perovskite crystals and more importantly explain their origins, thus enabling viable surface passivation strategies to remediate them.
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Affiliation(s)
| | - Victor M Burlakov
- Mathematical Institute, University of Oxford , Woodstock Road, Oxford OX2 6GG, United Kingdom
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Alain Goriely
- Mathematical Institute, University of Oxford , Woodstock Road, Oxford OX2 6GG, United Kingdom
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495
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Xie LQ, Chen L, Nan ZA, Lin HX, Wang T, Zhan DP, Yan JW, Mao BW, Tian ZQ. Understanding the Cubic Phase Stabilization and Crystallization Kinetics in Mixed Cations and Halides Perovskite Single Crystals. J Am Chem Soc 2017; 139:3320-3323. [DOI: 10.1021/jacs.6b12432] [Citation(s) in RCA: 153] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Li-Qiang Xie
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry
and Chemical Engineering, iChEM, Xiamen University, Xiamen 361005, China
| | - Liang Chen
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry
and Chemical Engineering, iChEM, Xiamen University, Xiamen 361005, China
| | - Zi-Ang Nan
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry
and Chemical Engineering, iChEM, Xiamen University, Xiamen 361005, China
| | - Hai-Xin Lin
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry
and Chemical Engineering, iChEM, Xiamen University, Xiamen 361005, China
| | - Tan Wang
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry
and Chemical Engineering, iChEM, Xiamen University, Xiamen 361005, China
| | - Dong-Ping Zhan
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry
and Chemical Engineering, iChEM, Xiamen University, Xiamen 361005, China
| | - Jia-Wei Yan
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry
and Chemical Engineering, iChEM, Xiamen University, Xiamen 361005, China
| | - Bing-Wei Mao
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry
and Chemical Engineering, iChEM, Xiamen University, Xiamen 361005, China
| | - Zhong-Qun Tian
- State Key Laboratory of Physical
Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry
and Chemical Engineering, iChEM, Xiamen University, Xiamen 361005, China
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496
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Zuo Z, Ding J, Zhao Y, Du S, Li Y, Zhan X, Cui H. Enhanced Optoelectronic Performance on the (110) Lattice Plane of an MAPbBr 3 Single Crystal. J Phys Chem Lett 2017; 8:684-689. [PMID: 28111957 DOI: 10.1021/acs.jpclett.6b02812] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Hybrid organic-inorganic lead halide perovskites have attracted significant attention due to their impressive optoelectronic properties. MAPbX3 (MA= CH3NH3+, X= Cl, Br or I), the most popular member of this family, has been recognized as an important next-generation optoelectronic materials contender, and remarkable progress has been achieved in both thin films and single crystals. However, the lack of optimizations in energy harvest, transportation, carrier extraction, and process compatibility is hindering their future development. In this study, a triangle prism MAPbBr3 single crystal exposing (100) and (110) crystallographic planes was successfully synthesized, and the optoelectronic performances of these two lattice planes were systematically explored by employing a planar metal-semiconductor-metal (MSM) device. Compared to the device fabricated on the (100) plane, a 153.33% enhancement of responsivity was achieved under 10 μW irradiation and 10 V bias on the (110) plane. Finally, possible mechanism for such an enhancement was discussed based on the different defect migration behaviors of (100) and (110) planes.
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Affiliation(s)
- Zhiyuan Zuo
- Advanced Research Center for Optics, Shandong University , Jinan 250100, China
- State Key Laboratory of Crystal Materials, Shandong University , Jinan 250100, China
| | - Jianxu Ding
- State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology , Qingdao 266590, China
- College of Materials Science and Engineering, Shandong University of Science and Technology , Qingdao 266590, China
| | - Ying Zhao
- College of Materials Science and Engineering, Shandong University of Science and Technology , Qingdao 266590, China
| | - Songjie Du
- College of Materials Science and Engineering, Shandong University of Science and Technology , Qingdao 266590, China
| | - Yongfu Li
- Advanced Research Center for Optics, Shandong University , Jinan 250100, China
| | - Xiaoyuan Zhan
- College of Materials Science and Engineering, Shandong University of Science and Technology , Qingdao 266590, China
| | - Hongzhi Cui
- College of Materials Science and Engineering, Shandong University of Science and Technology , Qingdao 266590, China
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497
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Cha JH, Han JH, Yin W, Park C, Park Y, Ahn TK, Cho JH, Jung DY. Photoresponse of CsPbBr 3 and Cs 4PbBr 6 Perovskite Single Crystals. J Phys Chem Lett 2017; 8:565-570. [PMID: 28067051 DOI: 10.1021/acs.jpclett.6b02763] [Citation(s) in RCA: 158] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
High-quality and millimeter-sized perovskite single crystals of CsPbBr3 and Cs4PbBr6 were prepared in organic solvents and studied for correlation between photocurrent generation and photoluminescence (PL) emission. The CsPbBr3 crystals, which have a 3D perovskite structure, showed a highly sensitive photoresponse and poor PL signal. In contrast, Cs4PbBr6 crystals, which have a 0D perovskite structure, exhibited more than 1 order of magnitude higher PL intensity than CsPbBr3, which generated an ultralow photoresponse under illumination. Their contrasting optoelectrical characteristics were attributed to different exciton binding energies, induced by coordination geometry of the [PbBr6]4- octahedron sublattices. This work correlated the local structures of lead in the primitive perovskite and its derivatives to PL spectra as well as photoconductivity.
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Affiliation(s)
- Ji-Hyun Cha
- Department of Chemistry, ‡School of Chemical Engineering, and §Department of Energy Science, Sungkyunkwan University , Suwon, Gyeonggi-do 16419, Korea
| | - Jae Hoon Han
- Department of Chemistry, ‡School of Chemical Engineering, and §Department of Energy Science, Sungkyunkwan University , Suwon, Gyeonggi-do 16419, Korea
| | - Wenping Yin
- Department of Chemistry, ‡School of Chemical Engineering, and §Department of Energy Science, Sungkyunkwan University , Suwon, Gyeonggi-do 16419, Korea
| | - Cheolwoo Park
- Department of Chemistry, ‡School of Chemical Engineering, and §Department of Energy Science, Sungkyunkwan University , Suwon, Gyeonggi-do 16419, Korea
| | - Yongmin Park
- Department of Chemistry, ‡School of Chemical Engineering, and §Department of Energy Science, Sungkyunkwan University , Suwon, Gyeonggi-do 16419, Korea
| | - Tae Kyu Ahn
- Department of Chemistry, ‡School of Chemical Engineering, and §Department of Energy Science, Sungkyunkwan University , Suwon, Gyeonggi-do 16419, Korea
| | - Jeong Ho Cho
- Department of Chemistry, ‡School of Chemical Engineering, and §Department of Energy Science, Sungkyunkwan University , Suwon, Gyeonggi-do 16419, Korea
| | - Duk-Young Jung
- Department of Chemistry, ‡School of Chemical Engineering, and §Department of Energy Science, Sungkyunkwan University , Suwon, Gyeonggi-do 16419, Korea
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498
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Yu JC, Kim DW, Kim DB, Jung ED, Lee KS, Lee S, Nuzzo DD, Kim JS, Song MH. Effect of the solvent used for fabrication of perovskite films by solvent dropping on performance of perovskite light-emitting diodes. NANOSCALE 2017; 9:2088-2094. [PMID: 28116382 DOI: 10.1039/c6nr08158d] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Organic-inorganic hybrid perovskites have emerged as a next-generation candidate for light-emitting device applications due to their excellent optical and electrical properties with narrow band emission compared to organic emitters. The morphological control of perovskite films with full surface coverage and few defect sites is essential for achieving highly efficient perovskite light-emitting diodes (PeLEDs). Here, we obtain a highly uniform perovskite film with a remarkably reduced number of defect sites in a perovskite crystal using chlorobenzene dropping. This effort leads to the enhanced performance of PeLEDs with a CH3NH3PbBr3 film using chlorobenzene dropping with a maximum luminance of 14 460 cd m-2 (at 3.8 V) and a maximum external quantum efficiency (EQE) of 0.71% (at 2.8 V). This research confirms that the role of the solvent in the solvent dropping method is to fabricate a dense and uniform perovskite film and to passivate the defect sites of the perovskite crystal films.
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Affiliation(s)
- Jae Choul Yu
- School of Materials Science Engineering/KIST-UNIST Ulsan Center for Convergent Materials/Perovtronics Research Center, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 689-798, Republic of Korea.
| | - Dae Woo Kim
- School of Materials Science Engineering/KIST-UNIST Ulsan Center for Convergent Materials/Perovtronics Research Center, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 689-798, Republic of Korea.
| | - Da Bin Kim
- School of Materials Science Engineering/KIST-UNIST Ulsan Center for Convergent Materials/Perovtronics Research Center, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 689-798, Republic of Korea.
| | - Eui Dae Jung
- School of Materials Science Engineering/KIST-UNIST Ulsan Center for Convergent Materials/Perovtronics Research Center, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 689-798, Republic of Korea.
| | - Ki-Suk Lee
- School of Materials Science Engineering/KIST-UNIST Ulsan Center for Convergent Materials/Perovtronics Research Center, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 689-798, Republic of Korea.
| | - Sukbin Lee
- School of Materials Science Engineering/KIST-UNIST Ulsan Center for Convergent Materials/Perovtronics Research Center, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 689-798, Republic of Korea.
| | - Daniele Di Nuzzo
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge, CB3 0HE, UK
| | - Ji-Seon Kim
- Department of Physics and Centre for Plastic Electronics, Imperial College London Prince Consort Road, London, SW7 2AZ, UK
| | - Myoung Hoon Song
- School of Materials Science Engineering/KIST-UNIST Ulsan Center for Convergent Materials/Perovtronics Research Center, Ulsan National Institute of Science and Technology (UNIST), UNIST-gil 50, Ulsan, 689-798, Republic of Korea.
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499
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Gu Z, Wang K, Li H, Gao M, Li L, Kuang M, Zhao YS, Li M, Song Y. Direct-Writing Multifunctional Perovskite Single Crystal Arrays by Inkjet Printing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13. [PMID: 27943615 DOI: 10.1002/smll.201603217] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Revised: 11/07/2016] [Indexed: 05/12/2023]
Abstract
Perovskite single-crystalline microplate arrays are directly achieved in large scale by inkjet printing, which present high performance lasing property with quality factors up to 863 and RGB (red-green-blue) emission. This facile, nonlithographic method makes its promising applications on multi-integrated coherent light sources and other high-performance integrated optoelectronic applications.
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Affiliation(s)
- Zhenkun Gu
- Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Kang Wang
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Huizeng Li
- Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Meng Gao
- Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Lihong Li
- Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Minxuan Kuang
- Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Yong Sheng Zhao
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Mingzhu Li
- Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Yanlin Song
- Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
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500
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Cook AM, M. Fregoso B, de Juan F, Coh S, Moore JE. Design principles for shift current photovoltaics. Nat Commun 2017; 8:14176. [PMID: 28120823 PMCID: PMC5288499 DOI: 10.1038/ncomms14176] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 12/06/2016] [Indexed: 12/18/2022] Open
Abstract
While the basic principles of conventional solar cells are well understood, little attention has gone towards maximizing the efficiency of photovoltaic devices based on shift currents. By analysing effective models, here we outline simple design principles for the optimization of shift currents for frequencies near the band gap. Our method allows us to express the band edge shift current in terms of a few model parameters and to show it depends explicitly on wavefunctions in addition to standard band structure. We use our approach to identify two classes of shift current photovoltaics, ferroelectric polymer films and single-layer orthorhombic monochalcogenides such as GeS, which display the largest band edge responsivities reported so far. Moreover, exploring the parameter space of the tight-binding models that describe them we find photoresponsivities that can exceed 100 mA W-1. Our results illustrate the great potential of shift current photovoltaics to compete with conventional solar cells.
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Affiliation(s)
- Ashley M. Cook
- Department of Physics, University of California, Berkeley, California 94720, USA
- Department of Physics, University of Toronto, Ontario, Canada, M5S 1A7
| | - Benjamin M. Fregoso
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - Fernando de Juan
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - Sinisa Coh
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - Joel E. Moore
- Department of Physics, University of California, Berkeley, California 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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