1
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Ding Z, Chen Q, Jiang Y, Yuan M. Structure-Guided Approaches for Enhanced Spin-Splitting in Chiral Perovskite. JACS AU 2024; 4:1263-1277. [PMID: 38665652 PMCID: PMC11040671 DOI: 10.1021/jacsau.3c00835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 02/28/2024] [Accepted: 03/07/2024] [Indexed: 04/28/2024]
Abstract
Hybrid organic-inorganic perovskites with diverse lattice structures and chemical composition provide an ideal material platform for novel functionalization, including chirality transfer. Chiral perovskites combine organic and inorganic sublattices, therefore encoding the structural asymmetry into the electronic structures and giving rise to the spin-splitting effect. From a structural chemistry perspective, the magnitude of the spin-splitting effect crucially depends on the noncovalent and electrostatic interaction within the chiral perovskite, which induces the local site and long-range bulk inversion symmetry breaking. In this regard, we systematically retrospect the structure-property relationships in chiral perovskite. Insight into the rational design of chiral perovskites based on molecular configuration, dimensionality, and chemical composition along with their effects on spin-splitting manifestation is presented. Lastly, challenges in purposeful material design and further integration into chiral perovskite-based spintronic devices are outlined. With an understanding of fundamental chemistry and physics, we believe that this Perspective will propel the application of multifunctional spintronic devices.
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Affiliation(s)
- Zijin Ding
- State
Key Laboratory of Advanced Chemical Power Sources, Key Laboratory
of Advanced Energy Materials Chemistry (Ministry of Education), Frontiers
Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Quanlin Chen
- State
Key Laboratory of Advanced Chemical Power Sources, Key Laboratory
of Advanced Energy Materials Chemistry (Ministry of Education), Frontiers
Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Yuanzhi Jiang
- State
Key Laboratory of Advanced Chemical Power Sources, Key Laboratory
of Advanced Energy Materials Chemistry (Ministry of Education), Frontiers
Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Mingjian Yuan
- State
Key Laboratory of Advanced Chemical Power Sources, Key Laboratory
of Advanced Energy Materials Chemistry (Ministry of Education), Frontiers
Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Haihe
Laboratory of Sustainable Chemical Transformations, Tianjin 300051, P. R. China
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2
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Chen J, Koc H, Zhao S, Wang K, Chao L, Eginligil M. Emerging Nonlinear Photocurrents in Lead Halide Perovskites for Spintronics. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1820. [PMID: 38673177 PMCID: PMC11051301 DOI: 10.3390/ma17081820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 04/07/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024]
Abstract
Lead halide perovskites (LHPs) containing organic parts are emerging optoelectronic materials with a wide range of applications thanks to their high optical absorption, carrier mobility, and easy preparation methods. They possess spin-dependent properties, such as strong spin-orbit coupling (SOC), and are promising for spintronics. The Rashba effect in LHPs can be manipulated by a magnetic field and a polarized light field. Considering the surfaces and interfaces of LHPs, light polarization-dependent optoelectronics of LHPs has attracted attention, especially in terms of spin-dependent photocurrents (SDPs). Currently, there are intense efforts being made in the identification and separation of SDPs and spin-to-charge interconversion in LHP. Here, we provide a comprehensive review of second-order nonlinear photocurrents in LHP in regard to spintronics. First, a detailed background on Rashba SOC and its related effects (including the inverse Rashba-Edelstein effect) is given. Subsequently, nonlinear photo-induced effects leading to SDPs are presented. Then, SDPs due to the photo-induced inverse spin Hall effect and the circular photogalvanic effect, together with photocurrent due to the photon drag effect, are compared. This is followed by the main focus of nonlinear photocurrents in LHPs containing organic parts, starting from fundamentals related to spin-dependent optoelectronics. Finally, we conclude with a brief summary and future prospects.
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Affiliation(s)
| | | | | | | | - Lingfeng Chao
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, China; (J.C.); (H.K.); (S.Z.); (K.W.)
| | - Mustafa Eginligil
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, China; (J.C.); (H.K.); (S.Z.); (K.W.)
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3
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Arya M, Bhumla P, Sheoran S, Bhattacharya S. Rashba and Dresselhaus effects in doped methylammonium lead halide perovskite MAPbI 3. Phys Chem Chem Phys 2024; 26:10419-10426. [PMID: 38502185 DOI: 10.1039/d3cp04334g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Inorganic-organic lead halide perovskites, particularly methylammonium lead halide (MAPbI3) perovskite, have been regarded as promising materials for optoelectronics and spintronics. However, the practical applications of these perovskites are limited by lead toxicity and instability under air and pressure. This study investigates the substitution of Pb with Sn and Ge in cubic MAPbI3 perovskite. The properties of the resulting hybrid perovskites are compared using state-of-the-art first-principles-based methodologies, viz., density functional theory (DFT) with generalized gradient approximation (PBE) and hybrid functional (HSE06), in conjunction with spin-orbit coupling (SOC). Here, we mainly study the Rashba-Dresselhaus (RD) effect, which arises due to two major mechanisms: (i) the breaking of inversion symmetry (static and dynamic) and (ii) SOC, originating from the presence of heavy elements. We find significant spin-splitting effects in the conduction band minimum and valence band maximum for hybrid perovskites. To gain a deeper understanding of the observed spin-splitting, the spin textures are analyzed, and Rashba coefficients are calculated. We find that the Dresselhaus effect comes into play in substituted hybrid structures in addition to the usual Rashba effect observed in the pristine compound. Additionally, we observe that the strength of Rashba spin-splitting is substantially tuned by the application of uniaxial strain (±5%). Moreover, certain hybrid perovskites exhibit mechanical stability and ductility, making them potential candidates in perovskite-based optoelectronics and spintronics applications.
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Affiliation(s)
- Megha Arya
- Department of Physics, Indian Institute of Technology Delhi, New Delhi, India.
| | - Preeti Bhumla
- Department of Physics, Indian Institute of Technology Delhi, New Delhi, India.
| | - Sajjan Sheoran
- Department of Physics, Indian Institute of Technology Delhi, New Delhi, India.
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4
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Zerhoch J, Bodnar S, Lerpinière JE, Liu S, Neumann T, Sergl B, Heindl MW, Shcherbakov A, Elghandour A, Klingeler R, Walker AB, Deschler F. Motional Narrowing Effects in the Excited State Spin Populations of Mn-Doped Hybrid Perovskites. J Phys Chem Lett 2024; 15:2851-2858. [PMID: 38442903 PMCID: PMC10945573 DOI: 10.1021/acs.jpclett.3c03466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/27/2024] [Accepted: 02/13/2024] [Indexed: 03/07/2024]
Abstract
Spin-orbit coupling in the electronic states of solution-processed hybrid metal halide perovskites forms complex spin-textures in the band structures and allows for optical manipulation of the excited state spin-polarizations. Here, we report that motional narrowing acts on the photoexcited spin-polarization in CH3NH3PbBr3 thin films, which are doped at percentage-level with Mn2+ ions. Using ultrafast circularly polarized broadband transient absorption spectroscopy at cryogenic temperatures, we investigate the spin population dynamics in these doped hybrid perovskites and find that spin relaxation lifetimes are increased by a factor of 3 compared to those of undoped materials. Using quantitative analysis of the photoexcitation cooling processes, we reveal increased carrier scattering rates in the doped perovskites as the fundamental mechanism driving spin-polarization-maintaining motional narrowing. Our work reports transition-metal doping as a concept to extend spin lifetimes of hybrid perovskites.
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Affiliation(s)
- Jonathan Zerhoch
- Physikalisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
- Walter
Schottky Institut, Technische Universität
München, Am Coulombwall 4, 85748 Garching, Germany
- Physics
Department, TUM School of Natural Sciences, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany
| | - Stanislav Bodnar
- Physikalisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
- Walter
Schottky Institut, Technische Universität
München, Am Coulombwall 4, 85748 Garching, Germany
- Physics
Department, TUM School of Natural Sciences, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany
| | | | - Shangpu Liu
- Physikalisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
- Walter
Schottky Institut, Technische Universität
München, Am Coulombwall 4, 85748 Garching, Germany
- Physics
Department, TUM School of Natural Sciences, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany
| | - Timo Neumann
- Walter
Schottky Institut, Technische Universität
München, Am Coulombwall 4, 85748 Garching, Germany
- Physics
Department, TUM School of Natural Sciences, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany
- Cavendish
Laboratory, University of Cambridge, JJ Thomson Ave, Cambridge CB3 0HE, U.K.
| | - Barbara Sergl
- Walter
Schottky Institut, Technische Universität
München, Am Coulombwall 4, 85748 Garching, Germany
- Physics
Department, TUM School of Natural Sciences, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany
| | - Markus W. Heindl
- Physikalisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
- Walter
Schottky Institut, Technische Universität
München, Am Coulombwall 4, 85748 Garching, Germany
- Physics
Department, TUM School of Natural Sciences, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany
| | - Andrii Shcherbakov
- Physikalisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
- Walter
Schottky Institut, Technische Universität
München, Am Coulombwall 4, 85748 Garching, Germany
- Physics
Department, TUM School of Natural Sciences, Technische Universität München, Am Coulombwall 4, 85748 Garching, Germany
| | - Ahmed Elghandour
- Kirchhoff
Institut für Physik, Universität
Heidelberg, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany
| | - Rüdiger Klingeler
- Kirchhoff
Institut für Physik, Universität
Heidelberg, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany
| | | | - Felix Deschler
- Physikalisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
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5
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Tang H, Zheng P, Xiao Z, Yuan K, Zhang H, Zhao X, Zhou W, Wang S, Liu W. Crystal Structure and Optical Properties Characterization in Quasi-0D Lead-Free Bromide Crystals (C 6H 14N) 3Bi 2Br 9·H 2O and (C 6H 14N) 3Sb 3Br 12. Inorg Chem 2024; 63:4747-4757. [PMID: 38412230 DOI: 10.1021/acs.inorgchem.4c00052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Low dimensional organic inorganic metal halide materials have shown broadband emission and large Stokes shift, making them widely used in various fields and a promising candidate material. Here, the zero-dimensional lead-free bromide single crystals (C6H14N)3Bi2Br9·H2O (1) and (C6H14N)3Sb3Br12 (2) were synthesized. They crystallized in the monoclinic crystal system with the space group of P21 and P21/n, respectively. Through ultraviolet-visible-near-infrared (UV-vis-NIR) absorption analysis, the band gaps of (C6H14N)3Bi2Br9·H2O and (C6H14N)3Sb3Br12 are found to be 2.75 and 2.83 eV, respectively. Upon photoexcitation, (C6H14N)3Bi2Br9·H2O exhibit broad-band red emission peaking at 640 nm with a large Stokes shift of 180 nm and a lifetime of 2.94 ns, and the emission spectrum of (C6H14N)3Sb3Br12 are similar to those of (C6H14N)3Bi2Br9·H2O. This exclusive red emission is ascribed to the self-trapping exciton transition caused by lattice distortion, which is confirmed through both experiments and first-principles calculations. In addition, due to the polar space group structure and the large spin-orbit coupling (SOC) associated with the heavy elements of Bi and Br of crystal 1, an obvious Rashba effect was observed. The discovery of organic inorganic metal bromide material provides a critical foundation for uncovering the connection between 0D metal halide materials' structures and properties.
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Affiliation(s)
- Hao Tang
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, School of Science, Tianjin University, Tianjin 300072, China
| | - Pengfei Zheng
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, School of Science, Tianjin University, Tianjin 300072, China
| | - Zhifeng Xiao
- College of Physics and Material Science, Tianjin Normal University, Tianjin 300074, China
| | - Kejia Yuan
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, School of Science, Tianjin University, Tianjin 300072, China
| | - Hanwen Zhang
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, School of Science, Tianjin University, Tianjin 300072, China
| | - Xiaochen Zhao
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, School of Science, Tianjin University, Tianjin 300072, China
| | - Wei Zhou
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, School of Science, Tianjin University, Tianjin 300072, China
| | - Shouyu Wang
- College of Physics and Material Science, Tianjin Normal University, Tianjin 300074, China
| | - Weifang Liu
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, School of Science, Tianjin University, Tianjin 300072, China
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6
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Ghosh S, Chowdhury J. Predicting band gaps of ABN 3 perovskites: an account from machine learning and first-principle DFT studies. RSC Adv 2024; 14:6385-6397. [PMID: 38380242 PMCID: PMC10877485 DOI: 10.1039/d4ra00402g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 02/14/2024] [Indexed: 02/22/2024] Open
Abstract
The present paper is primarily focused on predicting the band gaps of nitride perovskites from machine learning (ML) models. The ML models have been framed from the feature descriptors and band gap values of 1563 inorganic nitride perovskites having formation energies <-0.026 eV and band gaps ranging from ∼1.0 to 3.1 eV. Four supervised ML models such as multi-layer perceptron (MLP), gradient boosted decision tree (GBDT), support vector regression (SVR) and random forest regression (RFR) have been considered to predict the band gaps of the said systems. The accuracy of each model has been tested from mean absolute error, root-mean-square error and determination coefficient R2 values. The bivariate plots between the predicted and input band gaps of the compounds for both the training and test datasets have also been estimated. Additionally, two ABN3-type nitride perovskites CeBN3 (B = Mo, W) have been selected and their electronic band structures and optoelectronic properties have been studied from density functional theory (DFT) calculations. The band gap values of the said compounds have been estimated from DFT calculations at PBE, HSE06, G0W0@PBE, G0W0@HSE06 level of theories. The present study will be helpful in exploring the ML models in predicting the band gaps of nitride perovskites which in turn may bear potential applications in photovoltaic cells and optical luminescent devices.
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Affiliation(s)
- Swarup Ghosh
- Department of Physics, Jadavpur University 188, Raja S.C. Mallick Road Kolkata 700032 India
| | - Joydeep Chowdhury
- Department of Physics, Jadavpur University 188, Raja S.C. Mallick Road Kolkata 700032 India
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7
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Leppert L. Excitons in metal-halide perovskites from first-principles many-body perturbation theory. J Chem Phys 2024; 160:050902. [PMID: 38341699 DOI: 10.1063/5.0187213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 12/19/2023] [Indexed: 02/13/2024] Open
Abstract
Metal-halide perovskites are a structurally, chemically, and electronically diverse class of semiconductors with applications ranging from photovoltaics to radiation detectors and sensors. Understanding neutral electron-hole excitations (excitons) is key for predicting and improving the efficiency of energy-conversion processes in these materials. First-principles calculations have played an important role in this context, allowing for a detailed insight into the formation of excitons in many different types of perovskites. Such calculations have demonstrated that excitons in some perovskites significantly deviate from canonical models due to the chemical and structural heterogeneity of these materials. In this Perspective, I provide an overview of calculations of excitons in metal-halide perovskites using Green's function-based many-body perturbation theory in the GW + Bethe-Salpeter equation approach, the prevalent method for calculating excitons in extended solids. This approach readily considers anisotropic electronic structures and dielectric screening present in many perovskites and important effects, such as spin-orbit coupling. I will show that despite this progress, the complex and diverse electronic structure of these materials and its intricate coupling to pronounced and anharmonic structural dynamics pose challenges that are currently not fully addressed within the GW + Bethe-Salpeter equation approach. I hope that this Perspective serves as an inspiration for further exploring the rich landscape of excitons in metal-halide perovskites and other complex semiconductors and for method development addressing unresolved challenges in the field.
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Affiliation(s)
- Linn Leppert
- MESA+ Institute for Nanotechnology, University of Twente, 7500 AE Enschede, The Netherlands
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8
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Kang Y, Yang C, Gou J, Zhu Y, Zhu Q, Wu Q. From C 4H 7N 2Ge 0.4Sn 0.6Br 3 to C 6H 11N 2Ge 0.4Sn 0.6Br 3: Effective Modulation of the Second Harmonic Generation Effect and Optical Band Gap by Planar π-Conjugated Organic Cation Size. Inorg Chem 2024; 63:2725-2731. [PMID: 38247137 DOI: 10.1021/acs.inorgchem.3c04148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
In the search for nonlinear optical (NLO) materials with excellent overall performance, we have devoted ourselves to organic-inorganic hybrids consisting of anionic groups containing stereochemically active lone-pair (SCALP) electron cations and organic planar π-conjugated group cations. Accordingly, in this paper, two novel organic-inorganic hybrid metal halides, C4H7N2Ge0.4Sn0.6Br3 (I) and C6H11N2Ge0.4Sn0.6Br3 (II), have been synthesized. The powder second-harmonic technique shows that both C4H7N2Ge0.4Sn0.6Br3 and C6H11N2Ge0.4Sn0.6Br3 have moderately strong second-order nonlinear optical effects, which are about 2.03 (I) and 1.16 (II) times that of KH2PO4 (KDP), respectively. They also have different optical band gaps of 2.75 (I) and 2.88 eV (II) due to the different sizes of the organic cations, and their photoluminescent and thermal properties were also investigated. This work provides new structural insights for the design and modulation of organic-inorganic hybrid halide materials with multiple excellent optical properties.
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Affiliation(s)
- Yuwei Kang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, China
| | - Can Yang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
| | - Jie Gou
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
| | - Yaolong Zhu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
| | - Qingwen Zhu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
| | - Qi Wu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
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9
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Kempf MA, Moser P, Tomoscheit M, Schröer J, Blancon JC, Schwartz R, Deb S, Mohite A, Stier AV, Finley JJ, Korn T. Rapid Spin Depolarization in the Layered 2D Ruddlesden-Popper Perovskite (BA)(MA)PbI. ACS NANO 2023; 17:25459-25467. [PMID: 38095325 DOI: 10.1021/acsnano.3c09001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
We report temperature-dependent spectroscopy on the layered (n = 4) two-dimensional (2D) Ruddlesden-Popper perovskite (BA)(MA)PbI. Helicity-resolved steady-state photoluminescence (PL) reveals no optical degree of polarization. Time-resolved PL shows a photocarrier lifetime on the order of nanoseconds. From simultaneously recorded time-resolved differential reflectivity (TRΔR) and time-resolved Kerr ellipticity (TRKE), a photocarrier lifetime of a few nanoseconds and a spin relaxation time on the order of picoseconds was found. This stark contrast in lifetimes clearly explains the lack of spin polarization in steady-state PL. While we observe clear temperature-dependent effects on the PL dynamics that can be related to structural dynamics, spin relaxation is nearly T-independent. Our results highlight that spin relaxation in 2D (BA)(MA)PbI occurs at time scales faster than the exciton recombination time, which poses a bottleneck for applications aiming to utilize this degree of freedom.
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Affiliation(s)
| | - Philipp Moser
- Walter Schottky Institute, TUM School of Natural Sciences, Technical University of Munich, 85748 Garching, Germany
| | | | - Julian Schröer
- Institute of Physics, Rostock University, 18059 Rostock, Germany
| | - Jean-Christophe Blancon
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main St., Houston, Texas 77005-1827, United States
| | - Rico Schwartz
- Institute of Physics, Rostock University, 18059 Rostock, Germany
| | - Swarup Deb
- Institute of Physics, Rostock University, 18059 Rostock, Germany
| | - Aditya Mohite
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main St., Houston, Texas 77005-1827, United States
| | - Andreas V Stier
- Walter Schottky Institute, TUM School of Natural Sciences, Technical University of Munich, 85748 Garching, Germany
| | - Jonathan J Finley
- Walter Schottky Institute, TUM School of Natural Sciences, Technical University of Munich, 85748 Garching, Germany
| | - Tobias Korn
- Institute of Physics, Rostock University, 18059 Rostock, Germany
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10
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Song M, Wang H, Hu Z, Zhang Y, Liu T, Wang H. The Role of Polaronic States on the Spin Dynamics in Solution-Processed Two-Dimensional Layered Perovskite with Different Layer Thickness. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2302554. [PMID: 37395386 PMCID: PMC10502664 DOI: 10.1002/advs.202302554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/08/2023] [Indexed: 07/04/2023]
Abstract
2D lead halide perovskites (LHPs) show strong excitonic and spin-orbit coupling effects, generating a facile spin injection. Besides, they possess a polaron character due to the soft crystal lattice, which can prolong the spin lifetime, making them favorable materials for spintronic applications. Here, the spin dynamics of 2D PEA2 PbI4 (MAPbI3 )n -l thin films with different layers by temperature- and pump fluence-dependent circularly polarization-resolved transient absorption (TA) measurements is studied. These results indicate that the spin depolarization mechanism is gradually converted from the Maialle-Silva-Sham (MSS) mechanism to the polaronic states protection mechanism with the layer number increasing from = 1 to 3, which is determined by the interplay between the strength of Coulomb exchange interaction and the strength of polaronic effect. While for ≥ 4, the Elliot-Yafet (EY) impurities mechanism is proposed, in which the formed polaronic states with free charge carriers no longer play the protective role.
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Affiliation(s)
- Mu‐Sen Song
- State Key Laboratory of Integrated OptoelectronicsCollege of Electronic Science and EngineeringJilin University2699 Qianjin StreetChangchun130012China
| | - Hai Wang
- State Key Laboratory of Integrated OptoelectronicsCollege of Electronic Science and EngineeringJilin University2699 Qianjin StreetChangchun130012China
| | - Zi‐Fan Hu
- State Key Laboratory of Integrated OptoelectronicsCollege of Electronic Science and EngineeringJilin University2699 Qianjin StreetChangchun130012China
| | - Yu‐Peng Zhang
- State Key Laboratory of Integrated OptoelectronicsCollege of Electronic Science and EngineeringJilin University2699 Qianjin StreetChangchun130012China
| | - Tian‐Yu Liu
- State Key Laboratory of Integrated OptoelectronicsCollege of Electronic Science and EngineeringJilin University2699 Qianjin StreetChangchun130012China
| | - Hai‐Yu Wang
- State Key Laboratory of Integrated OptoelectronicsCollege of Electronic Science and EngineeringJilin University2699 Qianjin StreetChangchun130012China
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11
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Liu S, Kepenekian M, Bodnar S, Feldmann S, Heindl MW, Fehn N, Zerhoch J, Shcherbakov A, Pöthig A, Li Y, Paetzold UW, Kartouzian A, Sharp ID, Katan C, Even J, Deschler F. Bright circularly polarized photoluminescence in chiral layered hybrid lead-halide perovskites. SCIENCE ADVANCES 2023; 9:eadh5083. [PMID: 37656792 PMCID: PMC10854422 DOI: 10.1126/sciadv.adh5083] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 07/31/2023] [Indexed: 09/03/2023]
Abstract
Hybrid perovskite semiconductor materials are predicted to lock chirality into place and encode asymmetry into their electronic states, while softness of their crystal lattice accommodates lattice strain to maintain high crystal quality with low defect densities, necessary for high luminescence yields. We report photoluminescence quantum efficiencies as high as 39% and degrees of circularly polarized photoluminescence of up to 52%, at room temperature, in the chiral layered hybrid lead-halide perovskites (R/S/Rac)-3BrMBA2PbI4 [3BrMBA = 1-(3-bromphenyl)-ethylamine]. Using transient chiroptical spectroscopy, we explain the excellent photoluminescence yields from suppression of nonradiative loss channels and high rates of radiative recombination. We further find that photoexcitations show polarization lifetimes that exceed the time scales of radiative decays, which rationalize the high degrees of polarized luminescence. Our findings pave the way toward high-performance solution-processed photonic systems for chiroptical applications and chiral-spintronic logic at room temperature.
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Affiliation(s)
- Shangpu Liu
- Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
- Walter Schottky Institute and Physics Department, Technical University of Munich, Am Coulombwall 4, 85748 Garching, Germany
| | - Mikaël Kepenekian
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)—UMR 6226, F-35000 Rennes, France
| | - Stanislav Bodnar
- Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
- Walter Schottky Institute and Physics Department, Technical University of Munich, Am Coulombwall 4, 85748 Garching, Germany
| | - Sascha Feldmann
- Rowland Institute, Harvard University, Cambridge, MA 02142, USA
| | - Markus W. Heindl
- Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
- Walter Schottky Institute and Physics Department, Technical University of Munich, Am Coulombwall 4, 85748 Garching, Germany
| | - Natalie Fehn
- Catalysis Research Center and Chemistry Department, Technical University of Munich, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Jonathan Zerhoch
- Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
- Walter Schottky Institute and Physics Department, Technical University of Munich, Am Coulombwall 4, 85748 Garching, Germany
| | - Andrii Shcherbakov
- Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
- Walter Schottky Institute and Physics Department, Technical University of Munich, Am Coulombwall 4, 85748 Garching, Germany
| | - Alexander Pöthig
- Catalysis Research Center and Chemistry Department, Technical University of Munich, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Yang Li
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
- Light Technology Institute, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
| | - Ulrich W. Paetzold
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
- Light Technology Institute, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
| | - Aras Kartouzian
- Catalysis Research Center and Chemistry Department, Technical University of Munich, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Ian D. Sharp
- Walter Schottky Institute and Physics Department, Technical University of Munich, Am Coulombwall 4, 85748 Garching, Germany
| | - Claudine Katan
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)—UMR 6226, F-35000 Rennes, France
| | - Jacky Even
- Univ Rennes, INSA Rennes, CNRS, Institut FOTON—UMR 6082, F-35000 Rennes, France
| | - Felix Deschler
- Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
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12
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Guilloux V, Ghribi A, Majrab S, Margaillan F, Bernard M, Bernardot F, Legrand L, Lhuillier E, Boujdaria K, Chamarro M, Testelin C, Barisien T. Exciton Fine Structure of CsPbCl 3 Nanocrystals: An Interplay of Electron-Hole Exchange Interaction, Crystal Structure, Shape Anisotropy, and Dielectric Mismatch. ACS NANO 2023. [PMID: 37366625 DOI: 10.1021/acsnano.3c00772] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
In the semiconducting perovskite materials family, the cesium-lead-chloride compound (CsPbCl3) supports robust excitons characterized by a blue-shifted transition and the largest binding energy, thus presenting a high potential to achieve demanding solid-state room-temperature photonic or quantum devices. Here we study the fundamental emission properties of cubic-shaped colloidal CsPbCl3 nanocrystals (NCs), examining in particular individual NC responses using micro-photoluminescence in order to unveil the exciton fine structure (EFS) features. Within this work, NCs with average dimensions ⟨Lα⟩ ≈ 8 nm (α = x, y, z) are studied with a level of dispersity in their dimensions that allows disentangling the effects of size and shape anisotropy in the analysis. We find that most of the NCs exhibit an optical response under the form of a doublet with crossed polarized peaks and an average inter-bright-state splitting, ΔBB ≈ 1.53 meV, but triplets are also observed though being a minority. The origin of the EFS patterns is discussed in the frame of the electron-hole exchange model by taking into account the dielectric mismatch at the NC interface. The different features (large dispersity in the ΔBB values and occasional occurrence of triplets) are reconciled by incorporating a moderate degree of shape anisotropy, observed in the structural characterization, by preserving the relatively high degree of the NC lattice symmetry. The energy distance between the optically inactive state and the bright manifold, ΔBD, is also extracted from time-resolved photoluminescence measurements (ΔBD ≈ 10.7 meV), in good agreement with our theoretical predictions.
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Affiliation(s)
- Victor Guilloux
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Amal Ghribi
- LR01ES15 Laboratoire de Physique des Matériaux: Structure et Propriétés, Faculté des Sciences de Bizerte, Université de Carthage, Bizerte 7021, Tunisia
| | - Silbé Majrab
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Florent Margaillan
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Mathieu Bernard
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Frédérick Bernardot
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Laurent Legrand
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Emmanuel Lhuillier
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Kaïs Boujdaria
- LR01ES15 Laboratoire de Physique des Matériaux: Structure et Propriétés, Faculté des Sciences de Bizerte, Université de Carthage, Bizerte 7021, Tunisia
| | - Maria Chamarro
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Christophe Testelin
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Thierry Barisien
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
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13
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Varadwaj PR, Varadwaj A, Marques HM, Yamashita K. The Tetrel Bond and Tetrel Halide Perovskite Semiconductors. Int J Mol Sci 2023; 24:ijms24076659. [PMID: 37047632 PMCID: PMC10094773 DOI: 10.3390/ijms24076659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 03/21/2023] [Accepted: 03/23/2023] [Indexed: 04/05/2023] Open
Abstract
The ion pairs [Cs+•TtX3−] (Tt = Pb, Sn, Ge; X = I, Br, Cl) are the building blocks of all-inorganic cesium tetrel halide perovskites in 3D, CsTtX3, that are widely regarded as blockbuster materials for optoelectronic applications such as in solar cells. The 3D structures consist of an anionic inorganic tetrel halide framework stabilized by the cesium cations (Cs+). We use computational methods to show that the geometrical connectivity between the inorganic monoanions, [TtX3−]∞, that leads to the formation of the TtX64− octahedra and the 3D inorganic perovskite architecture is the result of the joint effect of polarization and coulombic forces driven by alkali and tetrel bonds. Depending on the nature and temperature phase of these perovskite systems, the Tt···X tetrel bonds are either indistinguishable or somehow distinguishable from Tt–X coordinate bonds. The calculation of the potential on the electrostatic surface of the Tt atom in molecular [Cs+•TtX3−] provides physical insight into why the negative anions [TtX3−] attract each other when in close proximity, leading to the formation of the CsTtX3 tetrel halide perovskites in the solid state. The inter-molecular (and inter-ionic) geometries, binding energies, and charge density-based topological properties of sixteen [Cs+•TtX3−] ion pairs, as well as some selected oligomers [Cs+•PbI3−]n (n = 2, 3, 4), are discussed.
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Affiliation(s)
- Pradeep R. Varadwaj
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1, Tokyo 113-8656, Japan
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg 2050, South Africa
| | - Arpita Varadwaj
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1, Tokyo 113-8656, Japan
| | - Helder M. Marques
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg 2050, South Africa
| | - Koichi Yamashita
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1, Tokyo 113-8656, Japan
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14
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Lu H, Long R. Spin-Orbit Coupling Notably Retards Non-radiative Electron-Hole Recombination in Methylammonium Lead Triiodide Perovskites. J Phys Chem Lett 2023; 14:2715-2721. [PMID: 36892969 DOI: 10.1021/acs.jpclett.3c00473] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The giant spin-orbit coupling (SOC) of a heavy lead element significantly extends charge carrier lifetimes of lead halide perovskites (LHPs). The physical mechanism remains unclear and requires a quantum dynamics perspective. Taking methylammonium lead iodide (MAPbI3) as a prototypical system and using non-adiabatic molecular dynamics combined with 1/2 electron correction, we show that SOC notably reduces the non-radiative electron-hole (e-h) recombination by decreasing the non-adiabatic coupling (NAC) primarily as a result of SOC decreasing the e-h wave function overlap by reshaping the electron and hole wave functions. Second, SOC causes spin mismatch subject to spin-mixed states, which further decreases NAC. The charge carrier lifetime is about 3-fold longer in the present of SOC relative to the absence of SOC. Our study generates the fundamental understanding of SOC minimizing non-radiative charge and energy losses in LHPs.
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Affiliation(s)
- Haoran Lu
- Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Run Long
- Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing 100875, People's Republic of China
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15
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Krach S, Forero-Correa N, Biega RI, Reyes-Lillo SE, Leppert L. Emergence of Rashba-/Dresselhaus effects in Ruddlesden-Popper halide perovskites with octahedral rotations. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2023; 35:174001. [PMID: 36806018 DOI: 10.1088/1361-648x/acbd0c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Ruddlesden-Popper halide perovskites are highly versatile quasi-two-dimensional energy materials with a wide range of tunable optoelectronic properties. Here we use the all-inorganic Csn+1PbnX3n+1Ruddlesden-Popper perovskites with X = I, Br, and Cl to systematically model the effect of octahedral tilting distortions on the energy landscape, band gaps, macroscopic polarization, and the emergence of Rashba-/Dresselhaus splitting in these materials. We construct all uniquen = 1 andn = 2 structures following from octahedral tilts and use first-principles density functional theory to calculate total energies, polarizations and band structures, backed up by band gap calculations using theGWapproach. Our results provide design rules for tailoring structural distortions and band-structure properties in all-inorganic Ruddlesden-Popper perovskites through the interplay of the amplitude, direction, and chemical character of the antiferrodistortive distortion modes contributing to each octahedral tilt pattern. Our work emphasizes that, in contrast to three-dimensional perovskites, polar structures may arise from a combination of octahedral tilts, and Rashba-/Dresselhaus splitting in this class of materials is determined by the direction and Pb-I orbital contribution of the polar distortion mode.
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Affiliation(s)
- Sonja Krach
- Institute of Physics, University of Bayreuth, 95440 Bayreuth, Germany
| | - Nicolás Forero-Correa
- Doctorado en Fisicoquímica Molecular, Facultad de Ciencias Exactas, Universidad Andres Bello, Santiago 837-0136, Chile
| | - Raisa-Ioana Biega
- MESA+ Institute for Nanotechnology, University of Twente, 7500 AE Enschede, Netherlands
| | | | - Linn Leppert
- MESA+ Institute for Nanotechnology, University of Twente, 7500 AE Enschede, Netherlands
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16
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Yang LS, Lin EC, Hua YH, Hsu CA, Chiu HZ, Lo PH, Chao YC. Circularly Polarized Photoluminescence of Chiral 2D Halide Perovskites at Room Temperature. ACS APPLIED MATERIALS & INTERFACES 2022; 14:54090-54100. [PMID: 36420750 DOI: 10.1021/acsami.2c16359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Chiral halide perovskites have attracted considerable attention because of their chiroptical, second-harmonic generation, and ferroelectricity properties and their potential application in chiroptoelectronics and chiral spintronics. However, the fundamental research of these properties is insufficient. In this work, chiral perovskites were synthesized using precursor solutions with various stoichiometric ratios ⟨n⟩. The chiral perovskite film prepared from the solution with ⟨n⟩ = 1 is composed of (R-/S-/rac-MBA)2PbBr4, whereas the films prepared from the solutions with ⟨n⟩ larger than 1 are a mixture of (R-/S-/rac-MBA)2(CsMA)n-1PbnBr3n+1 with n = 1 and large n values. A photoluminescence quantum yield of approximately 90 was obtained. Symmetric circular dichroism (CD) spectra were observed without an external magnetic field. Under various magnetic fields, magnetic field-induced CD features are superimposed with the intrinsic chirality-induced CD features. For the ⟨n⟩ = 1 chiral perovskite film, the energy level splitting induced by chiral molecules are a few 10 μeV, whereas the energy level splitting induced by magnetic fields are at the range of ∼-250 to ∼250 μeV. Circularly polarized photoluminescence spectra were observed at room temperature and associated with the spin-preserved energy funneling from highly energetic phases to the lower energetic phases.
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Affiliation(s)
- Lan-Sheng Yang
- Department of Physics, National Taiwan Normal University, Taipei11677, Taiwan, R.O.C
| | - En-Chi Lin
- Department of Physics, National Taiwan Normal University, Taipei11677, Taiwan, R.O.C
| | - Yi-Hsiu Hua
- Department of Physics, National Taiwan Normal University, Taipei11677, Taiwan, R.O.C
| | - Chin-An Hsu
- Department of Physics, National Taiwan Normal University, Taipei11677, Taiwan, R.O.C
| | - Hao-Zhe Chiu
- Department of Physics, National Taiwan Normal University, Taipei11677, Taiwan, R.O.C
| | - Pei-Hsuan Lo
- Department of Physics, National Taiwan Normal University, Taipei11677, Taiwan, R.O.C
| | - Yu-Chiang Chao
- Department of Physics, National Taiwan Normal University, Taipei11677, Taiwan, R.O.C
- Institute of Physics, National Yang Ming Chiao Tung University, Hsinchu300093, Taiwan
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17
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Sakhatskyi K, John RA, Guerrero A, Tsarev S, Sabisch S, Das T, Matt GJ, Yakunin S, Cherniukh I, Kotyrba M, Berezovska Y, Bodnarchuk MI, Chakraborty S, Bisquert J, Kovalenko MV. Assessing the Drawbacks and Benefits of Ion Migration in Lead Halide Perovskites. ACS ENERGY LETTERS 2022; 7:3401-3414. [PMID: 36277137 PMCID: PMC9578653 DOI: 10.1021/acsenergylett.2c01663] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 09/01/2022] [Indexed: 05/30/2023]
Abstract
Since the inception of the unprecedented rise of halide perovskites for photovoltaic research, ion migration has shadowed this material class with undesirable hysteresis and degradation effects, limiting its practical implementations. Unfortunately, the localized doping and electrochemical reactions triggered by ion migration cause many more undesirable effects that are often unreported or misinterpreted because they deviate from classical semiconductor behavior. In this Perspective, we provide a concise overview of such effects in halide perovskites, such as operational instability in photovoltaics, polarization-induced abnormal external quantum efficiency in light-emitting diodes, and energy channel shift and anomalous sensitivities in hard radiation detection. Finally, we highlight a unique use case of exploiting ion migration as a boon to design emerging memory technologies such as memristors for information storage and computing.
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Affiliation(s)
- Kostiantyn Sakhatskyi
- Laboratory
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, CH-8600 Dübendorf, Switzerland
| | - Rohit Abraham John
- Laboratory
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, CH-8600 Dübendorf, Switzerland
| | - Antonio Guerrero
- Institute
of Advanced Materials (INAM), Universitat
Jaume I, 12006 Castelló, Spain
| | - Sergey Tsarev
- Laboratory
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, CH-8600 Dübendorf, Switzerland
| | - Sebastian Sabisch
- Laboratory
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Tisita Das
- Materials
Theory for Energy Scavenging (MATES) Lab, Harish-Chandra Research Institute (HRI) Allahabad, HBNI, Allahabad, Uttar Pradesh 211019, India
| | - Gebhard J. Matt
- Laboratory
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, CH-8600 Dübendorf, Switzerland
| | - Sergii Yakunin
- Laboratory
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, CH-8600 Dübendorf, Switzerland
| | - Ihor Cherniukh
- Laboratory
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, CH-8600 Dübendorf, Switzerland
| | - Martin Kotyrba
- Laboratory
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, CH-8600 Dübendorf, Switzerland
| | - Yuliia Berezovska
- Laboratory
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, CH-8600 Dübendorf, Switzerland
| | - Maryna I. Bodnarchuk
- Laboratory
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, CH-8600 Dübendorf, Switzerland
| | - Sudip Chakraborty
- Materials
Theory for Energy Scavenging (MATES) Lab, Harish-Chandra Research Institute (HRI) Allahabad, HBNI, Allahabad, Uttar Pradesh 211019, India
| | - Juan Bisquert
- Institute
of Advanced Materials (INAM), Universitat
Jaume I, 12006 Castelló, Spain
- Yonsei
Frontier Lab, Yonsei University, Seoul 03722, South Korea
| | - Maksym V. Kovalenko
- Laboratory
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, CH-8600 Dübendorf, Switzerland
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18
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Yumoto G, Kanemitsu Y. Biexciton dynamics in halide perovskite nanocrystals. Phys Chem Chem Phys 2022; 24:22405-22425. [PMID: 36106456 DOI: 10.1039/d2cp02826c] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lead halide perovskite nanocrystals are attracting considerable interest as next-generation optoelectronic materials. Optical responses of nanocrystals are determined by excitons and exciton complexes such as trions and biexcitons. Understanding of their dynamics is indispensable for the optimal design of optoelectronic devices and the development of new functional properties. Here, we summarize the recent advances on the exciton and biexciton photophysics in lead halide perovskite nanocrystals revealed by femtosecond time-resolved spectroscopy and single-dot spectroscopy. We discuss the impact of the biexciton dynamics on controlling and improving the optical gain.
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Affiliation(s)
- Go Yumoto
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
| | - Yoshihiko Kanemitsu
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
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19
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Liu Y, Gong Y, Geng S, Feng M, Manidaki D, Deng Z, Stoumpos CC, Canepa P, Xiao Z, Zhang W, Mao L. Hybrid Germanium Bromide Perovskites with Tunable Second Harmonic Generation. Angew Chem Int Ed Engl 2022; 61:e202208875. [DOI: 10.1002/anie.202208875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Yang Liu
- Department of Chemistry SUSTech Energy Institute for Carbon Neutrality Southern University of Science and Technology Shenzhen Guangdong 518055 P. R. China
| | - Ya‐Ping Gong
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry Sun Yat-Sen University Guangzhou Guangdong 510275 P. R. China
| | - Shining Geng
- Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. China
| | - Mei‐Ling Feng
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 P. R. China
| | - Despoina Manidaki
- Department of Materials Science and Technology University of Crete Heraklion 70013 Greece
| | - Zeyu Deng
- Department of Materials Science and Engineering National University of Singapore Singapore 117575 Singapore
| | | | - Pieremanuele Canepa
- Department of Materials Science and Engineering National University of Singapore Singapore 117575 Singapore
- Department of Chemical and Biomolecular Engineering National University of Singapore Singapore 117585 Singapore
| | - Zewen Xiao
- Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan Hubei 430074 P. R. China
| | - Wei‐Xiong Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry Sun Yat-Sen University Guangzhou Guangdong 510275 P. R. China
| | - Lingling Mao
- Department of Chemistry SUSTech Energy Institute for Carbon Neutrality Southern University of Science and Technology Shenzhen Guangdong 518055 P. R. China
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20
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Liu Y, Gong YP, Geng S, Feng ML, Manidaki D, Deng Z, Stoumpos CC, Canepa P, Xiao Z, Zhang WX, Mao L. Hybrid Germanium Bromide Perovskites with Tunable Second Harmonic Generation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yang Liu
- Southern University of Science and Technology Chemistry CHINA
| | | | - Shining Geng
- Huazhong University of Science and Technology Wuhan National Laboratory for Optoelectronics CHINA
| | - Mei-Ling Feng
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter Chemistry CHINA
| | - Despoina Manidaki
- University of Crete Heraklion Campus: Panepistemio Kretes Panepistemioupole Bouton Materials Science and Technology GREECE
| | - Zeyu Deng
- National University of Singapore Materials Science and Engineering SINGAPORE
| | - Constantinos C. Stoumpos
- University of Crete Heraklion Campus: Panepistemio Kretes Panepistemioupole Bouton Materials Science and Technology GREECE
| | - Pieremanuele Canepa
- National University of Singapore Materials Science and Engineering SINGAPORE
| | - Zewen Xiao
- Huazhong University of Science and Technology Wuhan National Laboratory for Optoelectronics CHINA
| | | | - Lingling Mao
- Southern University of Science and Technology Chemistry No. 1088 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong Province 518055 Shenzhen CHINA
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21
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Wang C, Wang S, Xiao Z, Wong-Ng W, Zhou W, Liu W. Electric field and strain engineering tuning Rashba spin splitting in quasi-one-dimensional organic-inorganic hybrid perovskites (MV)AI 3Cl 2 (MV = methylviologen, A = Bi, Sb). Phys Chem Chem Phys 2022; 24:18401-18407. [PMID: 35880800 DOI: 10.1039/d2cp02059a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We systematically study the Rashba spin texture of lead-free quasi-one-dimensional organic-inorganic hybrid perovskites (OIHP), (MV)AI3Cl2 (MV = methylviologen, A = Bi, Sb) with first-principles calculations. The kx-ky plane Rashba spin splitting was found to depend on the composition of Bi (Sb) and I atoms at band edges. Importantly, increasing ferroelectric polarization and the stretch along the z-direction can effectively enhance the amplitude of the Rashba spin splitting. This work provides an avenue for electric field and strain-controlled spin splitting and highlights the potential of quasi-one-dimensional OIHP for further applications in spin field effect transistors and photovoltaic cells.
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Affiliation(s)
- Chao Wang
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, School of Science, Tianjin University, Tianjin 300072, China.
| | - Shouyu Wang
- College of Physics and Material Science, Tianjin Normal University, Tianjin 300074, China.
| | - Zhifeng Xiao
- College of Physics and Material Science, Tianjin Normal University, Tianjin 300074, China.
| | - Winnie Wong-Ng
- Materials Measurement Science Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - Wei Zhou
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, School of Science, Tianjin University, Tianjin 300072, China.
| | - Weifang Liu
- Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, School of Science, Tianjin University, Tianjin 300072, China.
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22
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Li S, Dai Z, Li L, Padture NP, Guo P. Time-resolved vibrational-pump visible-probe spectroscopy for thermal conductivity measurement of metal-halide perovskites. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2022; 93:053003. [PMID: 35649796 DOI: 10.1063/5.0083763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Understanding thermal transport at the microscale to the nanoscale is crucially important for a wide range of technologies ranging from device thermal management and protection systems to thermal-energy regulation and harvesting. In the past decades, non-contact optical methods, such as time-domain and frequency-domain thermoreflectance, have emerged as extremely powerful and versatile thermal metrological techniques for the measurement of material thermal conductivities. Here, we report the measurement of thermal conductivity of thin films of CH3NH3PbI3 (MAPbI3), a prototypical metal-halide perovskite, by developing a time-resolved optical technique called vibrational-pump visible-probe (VPVP) spectroscopy. The VPVP technique relies on the direct thermal excitation of MAPbI3 by femtosecond mid-infrared optical pump pulses that are wavelength-tuned to a vibrational mode of the material, after which the time dependent optical transmittance across the visible range is probed in the ns to the μs time window using a broadband pulsed laser. Using the VPVP method, we determine the thermal conductivities of MAPbI3 thin films deposited on different substrates. The transducer-free VPVP method reported here is expected to permit spectrally resolving and spatiotemporally imaging of the dynamic lattice temperature variations in organic, polymeric, and hybrid organic-inorganic semiconductors.
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Affiliation(s)
- Shunran Li
- Department of Chemical and Environmental Engineering, Yale University, 9 Hillhouse Avenue, New Haven, Connecticut 06520, USA
| | - Zhenghong Dai
- School of Engineering, Brown University, Providence, Rhode Island 02912, USA
| | - Linda Li
- Department of Chemical and Environmental Engineering, Yale University, 9 Hillhouse Avenue, New Haven, Connecticut 06520, USA
| | - Nitin P Padture
- School of Engineering, Brown University, Providence, Rhode Island 02912, USA
| | - Peijun Guo
- Department of Chemical and Environmental Engineering, Yale University, 9 Hillhouse Avenue, New Haven, Connecticut 06520, USA
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23
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Maiti A, Pal AJ. Carrier recombination in CH 3NH 3PbI 3: why is it a slow process? REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2022; 85:024501. [PMID: 35038679 DOI: 10.1088/1361-6633/ac4be9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
In methylammonium lead iodide (MAPbI3), a slow recombination process of photogenerated carriers has often been considered to be the most intriguing property of the material resulting in high-efficiency perovskite solar cells. In spite of intense research over a decade or so, a complete understanding of carrier recombination dynamics in MAPbI3has remained inconclusive. In this regard, several microscopic processes have been proposed so far in order to explain the slow recombination pathways (both radiative and non-radiative), such as the existence of shallow defects, a weak electron-phonon coupling, presence of ferroelectric domains, screening of band-edge charges through the formation of polarons, occurrence of the Rashba splitting in the band(s), and photon-recycling in the material. Based on the up-to-date findings, we have critically assessed each of these proposals/models to shed light on the origin of a slow recombination process in MAPbI3. In this review, we have presented the interplay between the mechanisms and our views/perspectives in determining the likely processes, which may dictate the recombination dynamics in the material. We have also deliberated on their interdependences in decoupling contributions of different recombination processes.
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Affiliation(s)
- Abhishek Maiti
- School of Physical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Amlan J Pal
- School of Physical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
- UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore 452001, India
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24
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Tofanello A, Freitas ALM, de Queiroz TB, Bonadio A, Martinho H, Souza JA. Magnetism in a 2D Hybrid Ruddlesden-Popper Perovskite through Charge Redistribution Driven by an Organic Functional Spacer. J Phys Chem Lett 2022; 13:1406-1415. [PMID: 35119272 DOI: 10.1021/acs.jpclett.1c04216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Two-dimensional Ruddlesden-Popper (RP) perovskites are emerging materials offering great synthetic versatility and remarkable features due to the tunability of their crystal structure. We present a novel strategy to provide magnetism in a 2D RP perovskite using histidine molecules as a spacer, which could induce charge rebalancing at the interface of the inorganic layer. We observe that the amide and imidazole groups are close to Pb ions. The interaction with the imidazole indicates that this functional group, possibly assisted by the carboxyl close to the vicinity of the amine terminal, is inducing charge rearrangement from Pb2+ to paramagnetic Pb3+ ions, resulting in a positive magnetic moment. This magnetized 2D hybrid perovskites can be classified as a novel class of promising materials showing a magnetic moment at their interface, which may result in intriguing physical properties due to a delicate balance between magnetism and a quantum well confinement effect in the inorganic layer.
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Affiliation(s)
- A Tofanello
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André 09210-580, Brazil
| | - A L M Freitas
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André 09210-580, Brazil
| | - T B de Queiroz
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André 09210-580, Brazil
| | - A Bonadio
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André 09210-580, Brazil
| | - H Martinho
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André 09210-580, Brazil
| | - J A Souza
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André 09210-580, Brazil
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25
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Steger M, Janke SM, Sercel PC, Larson BW, Lu H, Qin X, Yu VWZ, Blum V, Blackburn JL. On the optical anisotropy in 2D metal-halide perovskites. NANOSCALE 2022; 14:752-765. [PMID: 34940772 DOI: 10.1039/d1nr06899g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Two-dimensional metal-halide perovskites (MHPs) are versatile solution-processed organic/inorganic quantum wells where the structural anisotropy creates profound anisotropy in their electronic and excitonic properties and associated optical constants. We here employ a wholistic framework, based on semiempirical modeling (k·p/effective mass theory calculations) informed by hybrid density functional theory (DFT) and multimodal spectroscopic ellipsometry on (C6H5(CH2)2NH3)2PbI4 films and crystals, that allows us to link the observed optical properties and anisotropy precisely to the underlying physical parameters that shape the electronic structure of a layered MHP. We find substantial frequency-dependent anisotropy in the optical constants and close correspondence between experiment and theory, demonstrating a high degree of in-plane alignment of the two-dimensional planes in both spin-coated thin films and cleaved single crystals made in this study. Hybrid DFT results elucidate the degree to which organic and inorganic frontier orbitals contribute to optical transitions polarized along a particular axis. The combined experimental and theoretical approach enables us to estimate the fundamental electronic bandgap of 2.65-2.68 eV in this prototypical 2D perovskite and to determine the spin-orbit coupling (ΔSO = 1.20 eV) and effective crystal field (δ = -1.36 eV) which break the degeneracy of the frontier conduction band states and determine the exciton fine structure. The methods and results described here afford a better understanding of the connection between structure and induced optical anisotropy in quantum-confined MHPs, an important structure-property relationship for optoelectronic applications and devices.
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Affiliation(s)
- Mark Steger
- National Renewable Energy Laboratory, Golden, CO 80401, USA.
| | - Svenja M Janke
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
- Institute of Advanced Study, University of Warwick, CV4 7AL Coventry, UK
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
| | - Peter C Sercel
- Center for Hybrid Organic Inorganic Semiconductors for Energy, Golden, CO, 80401, USA
| | - Bryon W Larson
- National Renewable Energy Laboratory, Golden, CO 80401, USA.
| | - Haipeng Lu
- National Renewable Energy Laboratory, Golden, CO 80401, USA.
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
| | - Xixi Qin
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Victor Wen-Zhe Yu
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Volker Blum
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
- Department of Chemistry, Duke University, Durham, NC 27708, USA
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Kagdada HL, Gupta SK, Sahoo S, Singh DK. Mobility Driven Thermoelectric and Optical Properties of Two-Dimensional Halide-based Hybrid Perovskites: Impact of Organic Cation Rotation. Phys Chem Chem Phys 2022; 24:8867-8880. [DOI: 10.1039/d1cp05724c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The pivotal impact of organic cation rotation may render structural complexity in two-dimensional (2D) halide-based hybrid perovskites. The crucial role of the orientation of organic cation (MA = CH3NH3+) in...
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Matheu R, Vigil JA, Crace EJ, Karunadasa HI. The halogen chemistry of halide perovskites. TRENDS IN CHEMISTRY 2022. [DOI: 10.1016/j.trechm.2021.12.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Chen J, Wu K, Hu W, Yang J. Spin-Orbit Coupling in 2D Semiconductors: A Theoretical Perspective. J Phys Chem Lett 2021; 12:12256-12268. [PMID: 34929086 DOI: 10.1021/acs.jpclett.1c03662] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This theoretical Perspective reviews spin-orbit coupling (SOC), including the Rashba effect and Dresselhaus effect, in two-dimensional (2D) semiconductors. We first introduce the origin of the Rashba effect and Dresselhaus effect using the Hamiltonian models; we then summarize 2D Rashba semiconductors predicted by first-principles density functional theory (DFT) calculations, including AB binary monolayers, Janus monolayers, 2D perovskites, and so on. We also review various manipulating techniques of the Rashba effect on 2D semiconductors, such as external electric field, strain engineering, charge doping, interlayer interactions, proximity effect of substrates, and external magnetic field. We then briefly summarize the applications of SOC, including the generation, detection, and manipulation of spin currents in spin Hall effect transistors and spin field effect transistors. Finally, we conclude this Perspective and propose three promising research fields of SOC in low-dimensional semiconductors, including the nonlinear SOC Hamiltonian model, 2D ferroelectric SOC semiconductors, and 1D Rashba model and semiconductors. This theoretical Perspective enriches the fundamental understanding of SOC in 2D semiconductors and will help in the design of new types of spintronic devices in future experiments.
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Affiliation(s)
- Jiajia Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Kai Wu
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Wei Hu
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jinlong Yang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
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29
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Elahi E, Dastgeer G, Siddiqui AS, Patil SA, Iqbal MW, Sharma PR. A review on two-dimensional (2D) perovskite material-based solar cells to enhance the power conversion efficiency. Dalton Trans 2021; 51:797-816. [PMID: 34874382 DOI: 10.1039/d1dt02991f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With perovskite materials, rapid progress in power conversion efficiency (PCE) to reach 25% has gained a significant amount of attention from the solar cell industry. Since the development of solid-state perovskite solar cells, rapid research development and investigation on structure design, device fabrication and fundamental studies have contributed to solid-state perovskite solar cells to be a strong candidate for next-generation solar energy. The promising efficiency with low-cost materials is the key point over the other material-based solar cells. The power conversion efficiency (PCE) of two-dimensional (2D) perovskite materials is yet to be enhanced in order to contest with the 3D perovskite-based solar cells. Their enormous variety compromises better prospects and possibilities for research. Two-dimensional (2D) perovskites play a multi-functional role within a solar cell, such as a capping layer, passivating layer, prime cell absorber, and in a hybrid 3D/2D perovskite-based solar cell absorber. This review summarizes the evolution of solar cells that are based on 2D perovskites and their prominent character in solar cells, along with the significant trends. The fundamental configuration and the optoelectronic characteristics, including the band orientation and the transportation of the charges, are discussed in detail. The 2D perovskites are analyzed to study the confined charges within the inorganic structure due to the dielectric and quantum confinement influence. Furthermore, the importance of cesium cation (Cs+) doped with 2D substance (BA)2(MA3) PbI3 approach has been discussed to attain high power conversion efficiency (PCE). These attributes offer an efficient step towards air-stable and small-sized perovskites as a new group of renewable energy sources.
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Affiliation(s)
- Ehsan Elahi
- Department of Physics & Astronomy and Graphene Research Institute, Sejong University, 209 Neungdong-ro, Gwangjin-Gu, Seoul 05006, South Korea.
| | - Ghulam Dastgeer
- Department of Physics & Astronomy and Graphene Research Institute, Sejong University, 209 Neungdong-ro, Gwangjin-Gu, Seoul 05006, South Korea.
| | | | - Supriya A Patil
- Department of Nanotechnology & Advanced Materials Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-Gu, Seoul 05006, South Korea.
| | - Muhammad Waqas Iqbal
- Department of Physics, Riphah International University Lahore campus, Punjab, Pakistan
| | - Pradeep Raj Sharma
- Department of Physics & Astronomy and Graphene Research Institute, Sejong University, 209 Neungdong-ro, Gwangjin-Gu, Seoul 05006, South Korea.
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30
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Stereochemical expression of ns2 electron pairs in metal halide perovskites. Nat Rev Chem 2021; 5:838-852. [PMID: 37117392 DOI: 10.1038/s41570-021-00335-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2021] [Indexed: 12/20/2022]
Abstract
Metal halide perovskites (MHPs) are characterized as strongly anharmonic and dynamic lattices. While there is a consensus on the solvation-like polarization effect in these materials, whether static polarization, that is, ferroelectricity, exists or not in 3D MHPs remains controversial. In this Review, we resolve this controversy by analysing the stereochemical expression (SE) of the ns2 electron pair (NSEP) on group IV metal cations. The SE-NSEP is key to lattice instability, which governs the breaking of inversion symmetry and induces ferroelectricity. The SE-NSEP is diminishingly small in commonly studied 3D lead iodide or bromide perovskites, indicating an absence of ferroelectricity. In contrast, 2D MHPs promote the SE-NSEP and produce unambiguous ferroelectricity or antiferroelectricity. Irrespective of ferroelectricity, the dynamic manifestation of the SE-NSEP provides the missing link to understanding polar fluctuations and efficient dielectric screening in MHPs, thus, contributing to the long carrier lifetimes and diffusion lengths.
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31
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Bhumla P, Gill D, Sheoran S, Bhattacharya S. Origin of Rashba Spin Splitting and Strain Tunability in Ferroelectric Bulk CsPbF 3. J Phys Chem Lett 2021; 12:9539-9546. [PMID: 34570976 DOI: 10.1021/acs.jpclett.1c02596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Spin-orbit coupling (SOC) in conjunction with broken inversion symmetry acts as a key ingredient for several intriguing quantum phenomena, viz., Rashba-Dresselhaus (RD) effect. The coexistence of spontaneous polarization and the RD effect in ferroelectric (FE) materials enables the electrical control of spin degrees of freedom. Here, we explore the FE lead halide perovskite CsPbF3 as a potential candidate in the field of spintronics by employing state-of-the-art first-principles-based methodologies, viz., density functional theory (DFT) with semilocal and hybrid functional (HSE06) combined with SOC and many-body perturbation theory (G0W0). For a deeper understanding of the observed spin splitting, the spin textures are analyzed using the k.p model Hamiltonian. We find there is no out-of-plane spin component indicating that the Rashba splitting dominates over Dresselhaus splitting. We also observe that the strength of Rashba spin splitting can be substantially tuned on application of uniaxial strain (±5%). More interestingly, we notice reversible spin textures by switching the FE polarization in CsPbF3 perovskite, making it potent for perovskite-based spintronic applications.
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Affiliation(s)
- Preeti Bhumla
- Department of Physics, Indian Institute of Technology Delhi, New Delhi, India 110016
| | - Deepika Gill
- Department of Physics, Indian Institute of Technology Delhi, New Delhi, India 110016
| | - Sajjan Sheoran
- Department of Physics, Indian Institute of Technology Delhi, New Delhi, India 110016
| | - Saswata Bhattacharya
- Department of Physics, Indian Institute of Technology Delhi, New Delhi, India 110016
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32
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Garcia-Arellano G, Trippé-Allard G, Legrand L, Barisien T, Garrot D, Deleporte E, Bernardot F, Testelin C, Chamarro M. Energy Tuning of Electronic Spin Coherent Evolution in Methylammonium Lead Iodide Perovskites. J Phys Chem Lett 2021; 12:8272-8279. [PMID: 34425051 DOI: 10.1021/acs.jpclett.1c01790] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We investigated the coherent evolution of the electronic spin at low temperature in high-quality CH3NH3PbI3 polycrystalline films by picosecond-resolved photoinduced Faraday rotation. We show that this coherent evolution can be tuned by choosing the pump-probe energy within the lowest optical-absorption band, and we explain it as the result of two main contributions: the localized electron and the localized hole. Their corresponding amplitude ratios are not constant across the lowest absorption band-an observation which disqualifies a free exciton from being at the origin of the electronic spin coherent evolution. We measured a spin coherence time of localized electrons (holes) of 4.4 ns (3.7 ns) at 1.635 eV, which evolves to about 7 ns at 1.612 eV (the hole coherence time remains almost constant at lower energies). Finally, we provide a global image of the spin coherent evolution in bulk metal halide perovskite, which overcomes recent controversies.
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Affiliation(s)
- Guadalupe Garcia-Arellano
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place Jussieu, F-75005 Paris, France
| | - Gaëlle Trippé-Allard
- Université Paris-Saclay, ENS Paris-Saclay, Centrale Supélec, CNRS, LuMIn, F-91190 Gif-sur-Yvette, France
| | - Laurent Legrand
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place Jussieu, F-75005 Paris, France
| | - Thierry Barisien
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place Jussieu, F-75005 Paris, France
| | - Damien Garrot
- Université Paris-Saclay, UVSQ, CNRS, GEMaC, F-78000 Versailles, France
| | - Emmanuelle Deleporte
- Université Paris-Saclay, ENS Paris-Saclay, Centrale Supélec, CNRS, LuMIn, F-91190 Gif-sur-Yvette, France
| | - Frédérick Bernardot
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place Jussieu, F-75005 Paris, France
| | - Christophe Testelin
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place Jussieu, F-75005 Paris, France
| | - Maria Chamarro
- CNRS, Institut des NanoSciences de Paris, Sorbonne Université, 4 place Jussieu, F-75005 Paris, France
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Extraordinary phase coherence length in epitaxial halide perovskites. iScience 2021; 24:102912. [PMID: 34401682 PMCID: PMC8358163 DOI: 10.1016/j.isci.2021.102912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/10/2021] [Accepted: 07/22/2021] [Indexed: 11/26/2022] Open
Abstract
Inorganic halide perovskites have emerged as a promising platform in a wide range of applications from solar energy harvesting to computing and light emission. The recent advent of epitaxial thin film growth of halide perovskites has made it possible to investigate low-dimensional quantum electronic devices based on this class of materials. This study leverages advances in vapor-phase epitaxy of halide perovskites to perform low-temperature magnetotransport measurements on single-domain cesium tin iodide (CsSnI3) epitaxial thin films. The low-field magnetoresistance carries signatures of coherent quantum interference effects and spin-orbit coupling. These weak anti-localization measurements reveal a micron-scale low-temperature phase coherence length for charge carriers in this system. The results indicate that epitaxial halide perovskite heterostructures are a promising platform for investigating long coherent quantum electronic effects and potential applications in spintronics and spin-orbitronics. Epitaxial halide perovskites with extraordinary quantum phase coherence Quantum transport properties with weak antilocalization observed in tetragonal CsSnI3 Demonstration of quasi-2d charge carrier behavior with of spin-orbit coupling Epitaxial halide perovskites emerging materials for quantum electronic applications
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Bhattacharya S, Chandra GK, Predeep P. A Microstructural Analysis of 2D Halide Perovskites: Stability and Functionality. FRONTIERS IN NANOTECHNOLOGY 2021. [DOI: 10.3389/fnano.2021.657948] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Recent observations have demonstrated that the photoelectric conversion properties of perovskite materials are intimately related to the presence of superlattice structures and other unusual nanoscale features in them. The low-dimensional or mixed-dimensional halide perovskite families are found to be more efficient materials for device application than three-dimensional halide perovskites. The emergence of perovskite solar cells has revolutionized the solar cell industry because of their flexible architecture and rapidly increased efficiency. Tuning the dielectric constant and charge separation are the main objectives in designing a photovoltaic device that can be explored using the two-dimensional perovskite family. Thus, revisiting the fundamental properties of perovskite crystals could reveal further possibilities for recognizing these improvements toward device functionality. In this context, this review discusses the material properties of two-dimensional halide perovskites and related optoelectronic devices, aiming particularly for solar cell applications.
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Yang Y, Lou F, Xiang H. Cooperative Nature of Ferroelectricity in Two-Dimensional Hybrid Organic-Inorganic Perovskites. NANO LETTERS 2021; 21:3170-3176. [PMID: 33754732 DOI: 10.1021/acs.nanolett.1c00395] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Two-dimensional (2D) ferroelectric (FE) hybrid organic-inorganic perovskites (HOIPs) are promising for potential applications as miniaturized flexible ferroelectric/piezoelectric devices. Recently, several 2D HOIPs [e.g., Ruddlensden-Popper type HOIP BA2PbCl4 (BA = C6H5CH2NH3+)] were reported to possess room-temperature ferroelectricity. However, the underlying microscopic mechanisms for ferroelectricity in 2D HOIPs remain elusive. Here, by performing first-principles calculations and symmetry mode analysis, we demonstrate that there exists a cooperative coupling between A-site organic molecules and B-site inorganic Pb2+ ions that is essential to the ferroelectricity in 2D BA2PbCl4. The nonpolar ground state of the closely related compounds BA2PbBr4 and BA2PbI4 can also be explained in terms of the weakened cooperative coupling. We further predict that 2D BA2PbF4 displays in-plane ferroelectricity with a higher Curie temperature and larger electric polarization. Our work not only reveals the unusual FE mechanism in 2D HOIPs but also provides a solid theoretical basis for the rational design of 2D multifunctional materials.
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Affiliation(s)
- Yali Yang
- Key Laboratory of Computational Physical Sciences (Ministry of Education), State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200433, People's Republic of China
- Shanghai Qizhi Institution, Shanghai 200232, People's Republic of China
| | - Feng Lou
- Key Laboratory of Computational Physical Sciences (Ministry of Education), State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200433, People's Republic of China
- Shanghai Qizhi Institution, Shanghai 200232, People's Republic of China
| | - Hongjun Xiang
- Key Laboratory of Computational Physical Sciences (Ministry of Education), State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200433, People's Republic of China
- Shanghai Qizhi Institution, Shanghai 200232, People's Republic of China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, People's Republic of China
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Polarization-Sensitive Light Sensors Based on a Bulk Perovskite MAPbBr 3 Single Crystal. MATERIALS 2021; 14:ma14051238. [PMID: 33807942 PMCID: PMC7961534 DOI: 10.3390/ma14051238] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/25/2021] [Accepted: 03/02/2021] [Indexed: 11/17/2022]
Abstract
Organic-inorganic halide perovskites have attracted much attention thanks to their excellent optoelectronic performances. Here, a bulk CH3NH3PbBr3 (MAPbBr3) single crystal (SC) was fabricated, whose temperature and light polarization dependence was investigated by measuring photoluminescence. The presence of obvious band tail states was unveiled when the applied temperature was reduced from room temperature to 78 K. Temperature dependence of the bandgap of the MAPbBr3 SC was found to be abnormal compared with those of traditional semiconductors due to the presence of instabilization of out-of-phase tail states. The MAPbBr3 SC revealed an anisotropy light absorption for linearly polarized light with an anisotropy ratio of 1.45, and a circular dichroism ratio of up to 9% was discovered due to the spin-orbit coupling in the band tail states, exhibiting great polarization sensitivity of the MAPbBr3 SC for the application of light sensors. These key findings shed light on the development of potential optoelectronic and spintronic applications based on large-scaled organic-inorganic perovskite SCs.
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Chen TP, Lin JX, Lin CC, Lin CY, Ke WC, Wang DY, Hsu HS, Chen CC, Chen CW. Strong Excitonic Magneto-Optic Effects in Two-Dimensional Organic-Inorganic Hybrid Perovskites. ACS APPLIED MATERIALS & INTERFACES 2021; 13:10279-10286. [PMID: 33599486 DOI: 10.1021/acsami.0c20863] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
This work demonstrates the strong excitonic magneto-optic (MO) effects of magnetic circular dichroism (MCD) and Faraday rotation (FR) in nonmagnetic two-dimensional (2D) organic-inorganic hybrid Ruddlesden-Popper perovskites (RPPs) at room temperature. Due to their strong and sharp excitonic absorption as a result of unique quantum well structures of 2D RPPs, sizeable linear excitonic MO effects of MCD and FR can be observed at room temperature under a low magnetic field (<1 T) compared with their three-dimensional counterpart. In addition, since the band gaps of 2D organic-inorganic hybrid perovskites can be manipulated either by changing the number n of inorganic octahedral slabs per unit cell or through halide engineering, linear excitonic MO effects of 2D-RPPs can be observed through the broadband spectral ranges of visible light. Our result may pave the way for the promising research field of MO and magneto-optoelectronic applications based on 2D organic-inorganic hybrid perovskites with facile solution processes.
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Affiliation(s)
- Tzu-Pei Chen
- Department of Materials Science and Engineering, National Taiwan University, Taipei 106, Taiwan
- Department of Physics, National Taiwan University, Taipei 106, Taiwan
- Nano Science and Technology Program, Taiwan International Graduate Program, Academia Sinica and National Taiwan University, Taipei 115, Taiwan
| | - Jun-Xiao Lin
- Department of Applied Physics, National Pingtung University, Pingtung 900, Taiwan
| | - Cheng-Chieh Lin
- International Graduate Program of Molecular Science and Technology, National Taiwan University (NTU-MST), Taipei 106, Taiwan
- Molecular Science and Technology Program, Taiwan International Graduate Program (TIGP) Academia Sinica, Taipei 11529, Taiwan
| | - Chi-Ying Lin
- Department of Materials Science and Engineering, National Taiwan University, Taipei 106, Taiwan
| | - We-Chen Ke
- Department of Materials Science and Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Di-Yan Wang
- Department of Chemistry, Tunghai University, Taichung 407, Taiwan
| | - Hua-Shu Hsu
- Department of Applied Physics, National Pingtung University, Pingtung 900, Taiwan
| | - Chia-Chun Chen
- Department of Chemistry, National Taiwan Normal University, Taipei 116, Taiwan
| | - Chun-Wei Chen
- Department of Materials Science and Engineering, National Taiwan University, Taipei 106, Taiwan
- International Graduate Program of Molecular Science and Technology, National Taiwan University (NTU-MST), Taipei 106, Taiwan
- Center of Atomic Initiative for New Materials (AI-MAT), National Taiwan University, Taipei 106, Taiwan
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39
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Chakraborty S, Nazeeruddin MK. The Status Quo of Rashba Phenomena in Organic-Inorganic Hybrid Perovskites. J Phys Chem Lett 2021; 12:361-367. [PMID: 33356285 DOI: 10.1021/acs.jpclett.0c02497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this Perspective, we address the fundamentals and possible implications of Rashba phenomena particularly for noncentrosymmetric and heavy element-containing hybrid perovskite systems. The work sheds light on the application paradigm of these exciting phenomena in the field of photovoltaics, light-emitting diodes, and catalytic reactions. The experimental realization along with the theoretical prediction of these phenomena in the emerging energy materials family of hybrid perovskites opens up a new direction for modulating the charge carrier recombination probability of the excited electrons and the holes. The influence of external parameters, such as pressure, uni- and biaxial strain, and electric field, has been addressed explicitly to change the Rashba factor, which essentially suppresses the recombination rate. The current Perspective provides a roadmap of materials design and the effect of external stimuli on the plethora of hybrid perovskite materials for extensive energy scavenging with the focus on photovoltaics.
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Affiliation(s)
- Sudip Chakraborty
- Materials Theory for Energy Scavenging (MATES) Lab, Discipline of Physics, Indian Institute of Technology (IIT) Indore, Simrol, Indore 453552, India
| | - Mohammad Khaja Nazeeruddin
- Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, Valais Wallis, Sion, Switzerland
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40
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Crane MJ, Jacoby LM, Cohen TA, Huang Y, Luscombe CK, Gamelin DR. Coherent Spin Precession and Lifetime-Limited Spin Dephasing in CsPbBr 3 Perovskite Nanocrystals. NANO LETTERS 2020; 20:8626-8633. [PMID: 33238099 DOI: 10.1021/acs.nanolett.0c03329] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Carrier spins in semiconductor nanocrystals are promising candidates for quantum information processing. Using a combination of time-resolved Faraday rotation and photoluminescence spectroscopies, we demonstrate optical spin polarization and coherent spin precession in colloidal CsPbBr3 nanocrystals that persists up to room temperature. By suppressing the influence of inhomogeneous hyperfine fields with a small applied magnetic field, we demonstrate inhomogeneous hole transverse spin-dephasing times (T2*) that approach the nanocrystal photoluminescence lifetime, such that nearly all emitted photons derive from coherent hole spins. Thermally activated LO phonons drive additional spin dephasing at elevated temperatures, but coherent spin precession is still observed at room temperature. These data reveal several major distinctions between spins in nanocrystalline and bulk CsPbBr3 and open the door for using metal-halide perovskite nanocrystals in spin-based quantum technologies.
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Affiliation(s)
- Matthew J Crane
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Laura M Jacoby
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Theodore A Cohen
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
- Molecular Engineering & Sciences Institute, University of Washington, Seattle, Washington 98195-1652, United States
- Department of Materials Science & Engineering, University of Washington, Seattle, Washington 98195-2120, United States
| | - Yunping Huang
- Department of Materials Science & Engineering, University of Washington, Seattle, Washington 98195-2120, United States
| | - Christine K Luscombe
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
- Molecular Engineering & Sciences Institute, University of Washington, Seattle, Washington 98195-1652, United States
- Department of Materials Science & Engineering, University of Washington, Seattle, Washington 98195-2120, United States
| | - Daniel R Gamelin
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
- Molecular Engineering & Sciences Institute, University of Washington, Seattle, Washington 98195-1652, United States
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41
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Ning W, Bao J, Puttisong Y, Moro F, Kobera L, Shimono S, Wang L, Ji F, Cuartero M, Kawaguchi S, Abbrent S, Ishibashi H, De Marco R, Bouianova IA, Crespo GA, Kubota Y, Brus J, Chung DY, Sun L, Chen WM, Kanatzidis MG, Gao F. Magnetizing lead-free halide double perovskites. SCIENCE ADVANCES 2020; 6:6/45/eabb5381. [PMID: 33158858 PMCID: PMC7673701 DOI: 10.1126/sciadv.abb5381] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 09/16/2020] [Indexed: 05/30/2023]
Abstract
Spintronics holds great potential for next-generation high-speed and low-power consumption information technology. Recently, lead halide perovskites (LHPs), which have gained great success in optoelectronics, also show interesting magnetic properties. However, the spin-related properties in LHPs originate from the spin-orbit coupling of Pb, limiting further development of these materials in spintronics. Here, we demonstrate a new generation of halide perovskites, by alloying magnetic elements into optoelectronic double perovskites, which provide rich chemical and structural diversities to host different magnetic elements. In our iron-alloyed double perovskite, Cs2Ag(Bi:Fe)Br6, Fe3+ replaces Bi3+ and forms FeBr6 clusters that homogenously distribute throughout the double perovskite crystals. We observe a strong temperature-dependent magnetic response at temperatures below 30 K, which is tentatively attributed to a weak ferromagnetic or antiferromagnetic response from localized regions. We anticipate that this work will stimulate future efforts in exploring this simple yet efficient approach to develop new spintronic materials based on lead-free double perovskites.
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Affiliation(s)
- Weihua Ning
- Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping SE-581 83, Sweden
| | - Jinke Bao
- Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Yuttapoom Puttisong
- Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping SE-581 83, Sweden
| | - Fabrizo Moro
- Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping SE-581 83, Sweden
| | - Libor Kobera
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovskeho nam. 2, 162 06 Prague 6, Czech Republic
| | - Seiya Shimono
- Department of Materials Science and Engineering, National Defense Academy, Yokosuka, Kanagawa 239-8686, Japan
| | - Linqin Wang
- Department of Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Fuxiang Ji
- Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping SE-581 83, Sweden
| | - Maria Cuartero
- Department of Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Shogo Kawaguchi
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, Sayo, Hyogo 679-5198, Japan
| | - Sabina Abbrent
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovskeho nam. 2, 162 06 Prague 6, Czech Republic
| | - Hiroki Ishibashi
- Department of Physical Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Roland De Marco
- Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, 90 Sippy Downs Drive, Sippy Downs, QLD 4556, Australia
| | - Irina A Bouianova
- Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping SE-581 83, Sweden
| | - Gaston A Crespo
- Department of Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Yoshiki Kubota
- Department of Physical Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Jiri Brus
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovskeho nam. 2, 162 06 Prague 6, Czech Republic
| | - Duck Young Chung
- Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Licheng Sun
- Department of Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
- Center of Artificial Photosynthesis for Solar Fuels, School of Science, Westlake University, Hangzhou 310024, China
| | - Weimin M Chen
- Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping SE-581 83, Sweden
| | - Mercouri G Kanatzidis
- Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Feng Gao
- Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping SE-581 83, Sweden.
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42
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Surface-Step-Induced Magnetic Anisotropy in Epitaxial LSMO Deposited on Engineered STO Surfaces. MATERIALS 2020; 13:ma13184148. [PMID: 32957740 PMCID: PMC7560275 DOI: 10.3390/ma13184148] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/11/2020] [Accepted: 09/11/2020] [Indexed: 01/13/2023]
Abstract
Changes in stoichiometry, temperature, strain and other parameters dramatically alter properties of LSMO perovskite. Thus, the sensitivity of LSMO may enable control of the magnetic properties of the film. This work demonstrates the capabilities of interface engineering to achieve the desired effects. Three methods of preparing STO substrates were conducted, i.e., using acid, buffer solution, and deionized water. The occurrence of terraces and their morphology depend on the preparation treatment. Terraces propagate on deposited layers and influence LSMO properties. The measurements show that anisotropy depends on the roughness of the substrate, the method of preparing the substrate, and oxygen treatment. The collected results suggest that the dipolar mechanism may be the source of LSMO anisotropy.
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43
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Wang Y, Wan Z, Qian Q, Liu Y, Kang Z, Fan Z, Wang P, Wang Y, Li C, Jia C, Lin Z, Guo J, Shakir I, Goorsky M, Duan X, Zhang Y, Huang Y, Duan X. Probing photoelectrical transport in lead halide perovskites with van der Waals contacts. NATURE NANOTECHNOLOGY 2020; 15:768-775. [PMID: 32661372 DOI: 10.1038/s41565-020-0729-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 06/03/2020] [Indexed: 05/25/2023]
Abstract
Lead halide perovskites have attracted increasing interest for their exciting potential in diverse optoelectronic devices. However, their charge transport properties remain elusive, plagued by the issues of excessive contact resistance and large hysteresis in ambient conditions. Here we report a van der Waals integration approach for creating high-performance contacts on monocrystalline halide perovskite thin films with minimum interfacial damage and an atomically clean interface. Compared to the deposited contacts, our van der Waals contacts exhibit two to three orders of magnitude lower contact resistance, enabling systematic transport studies in a wide temperature range. We report a Hall mobility exceeding 2,000 cm2 V-1 s-1 at around 80 K, an ultralow bimolecular recombination coefficient of 3.5 × 10-15 cm3 s-1 and a photocurrent gain >106 in the perovskite thin films. Furthermore, magnetotransport studies reveal a quantum-interference-induced weak localization behaviour with a phase coherence length up to 49 nm at 3.5 K. Our results lay the foundation for exploring new physics in this class of 'soft-lattice' materials.
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Affiliation(s)
- Yiliu Wang
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
| | - Zhong Wan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
| | - Qi Qian
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
- State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
| | - Yuan Liu
- State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA
| | - Zhuo Kang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Advanced Energy Materials and Technologies, University of Science and Technology Beijing, Beijing, China
| | - Zheng Fan
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA
| | - Peiqi Wang
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
| | - Yekan Wang
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA
| | - Chao Li
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA
| | - Chuancheng Jia
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
| | - Zhaoyang Lin
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
| | - Jian Guo
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA
| | - Imran Shakir
- Sustainable Energy Technologies Centre, College of Engineering, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Mark Goorsky
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA
| | - Xidong Duan
- State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
| | - Yue Zhang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Advanced Energy Materials and Technologies, University of Science and Technology Beijing, Beijing, China
| | - Yu Huang
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA
| | - Xiangfeng Duan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA.
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44
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Straus DB, Guo S, Abeykoon AM, Cava RJ. Understanding the Instability of the Halide Perovskite CsPbI 3 through Temperature-Dependent Structural Analysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2001069. [PMID: 32633043 DOI: 10.1002/adma.202001069] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 05/31/2020] [Indexed: 06/11/2023]
Abstract
Despite the tremendous interest in halide perovskite solar cells, the structural reasons that cause the all-inorganic perovskite CsPbI3 to be unstable at room temperature remain mysterious, especially since many tolerance-factor-based approaches predict CsPbI3 should be stable as a perovskite. Here single-crystal X-ray diffraction and X-ray pair distribution function (PDF) measurements characterize bulk perovskite CsPbI3 from 100 to 295 K to elucidate its thermodynamic instability. While Cs occupies a single site from 100 to 150 K, it splits between two sites from 175 to 295 K with the second site having a lower effective coordination number, which, along with other structural parameters, suggests that Cs rattles in its coordination polyhedron. PDF measurements reveal that on the length scale of the unit cell, the PbI octahedra concurrently become greatly distorted, with one of the IPbI angles approaching 82° compared to the ideal 90°. The rattling of Cs, low number of CsI contacts, and high degree of octahedral distortion cause the instability of perovskite-phase CsPbI3. These results reveal the limitations of tolerance factors in predicting perovskite stability and provide detailed structural information that suggests methods to engineer stable CsPbI3 -based solar cells.
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Affiliation(s)
- Daniel B Straus
- Department of Chemistry, Princeton University, Princeton, NJ, 08544, USA
| | - Shu Guo
- Department of Chemistry, Princeton University, Princeton, NJ, 08544, USA
| | - Am Milinda Abeykoon
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Robert J Cava
- Department of Chemistry, Princeton University, Princeton, NJ, 08544, USA
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45
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Affiliation(s)
- Jin Young Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Jin-Wook Lee
- SKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nanoengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hyun Suk Jung
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hyunjung Shin
- Department of Energy Science, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Nam-Gyu Park
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
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46
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El-Ballouli A, Bakr OM, Mohammed OF. Structurally Tunable Two-Dimensional Layered Perovskites: From Confinement and Enhanced Charge Transport to Prolonged Hot Carrier Cooling Dynamics. J Phys Chem Lett 2020; 11:5705-5718. [PMID: 32574063 PMCID: PMC7467744 DOI: 10.1021/acs.jpclett.0c00359] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Two-dimensional (2D) layered metal halide perovskites are potential alternatives to three-dimensional perovskites in optoelectronic applications owing to their improved photostabilities and chemical stabilities. Recent investigations of 2D metal halide perovskites have demonstrated interesting optical and electronic properties of various structures that are controlled by their elemental composition and organic spacers. However, photovoltaic devices that utilize 2D perovskites suffer from poor device efficiency due to inefficient charge carrier separation and extraction. In this Perspective, we shed light on confinement control and structural variation strategies that provide better parameters for the efficient collection of charges. The influence of these strategies on the exciton binding energies, charge-carrier mobilities, hot-carrier dynamics, and electron-phonon coupling in 2D perovskites is thoroughly discussed; these parameters highlight unique opportunities for further system optimization. Beyond the tunability of these fundamental parameters, we conclude this Perspective with the most notable strategies for attaining 2D perovskites with reduced bandgaps to better suit photovoltaic applications.
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Affiliation(s)
- Ala’a
O. El-Ballouli
- College
of Science and Health Professions, King
Saud bin Abdulaziz University for Health Sciences, Riyadh 11481, Kingdom of Saudi Arabia
- King
Abdullah International Medical Research Center, Riyadh 11426, Kingdom of Saudi Arabia
- Ministry
of the National Guard - Health Affairs, Riyadh 14611, Kingdom of Saudi Arabia
| | - Osman M. Bakr
- King
Abdullah University of Science and Technology (KAUST), Division of Physical Sciences and Engineering, Thuwal 23955-6900, Kingdom of Saudi
Arabia
| | - Omar F. Mohammed
- King
Abdullah University of Science and Technology (KAUST), Division of Physical Sciences and Engineering, Thuwal 23955-6900, Kingdom of Saudi
Arabia
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47
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Jia F, Hu S, Xu S, Gao H, Zhao G, Barone P, Stroppa A, Ren W. Persistent Spin-texture and Ferroelectric Polarization in 2D Hybrid Perovskite Benzylammonium Lead-halide. J Phys Chem Lett 2020; 11:5177-5183. [PMID: 32298584 DOI: 10.1021/acs.jpclett.0c00543] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Density functional theory calculations were performed for the electronic and the ferroelectric properties of the bulk and the monolayer benzylammonium lead-halide (BA2PbCl4). Our calculations indicate that both the bulk and monolayer systems display a band gap of ∼3.3 eV (HSE06+SOC) and a spontaneous polarization of ∼5.4 μC/cm2. The similar physical properties of bulk and monolayer systems suggest a strong decoupling among the layers in this hybrid organic-inorganic perovskite. Both the ferroelectricity, through associated structure distortion, and the spin-orbit coupling, through splitting induced in the electronic bands, significantly influence the band gaps. Most importantly, we found for the first time in a two-dimensional hybrid organic-inorganic class of material, a peculiar spin texture topology such as a unidirectional spin-orbit field, which may lead to a protection against spin decoherence.
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Affiliation(s)
- Fanhao Jia
- Physics Department, State Key Laboratory of Advanced Special Steel, and International Centre for Quantum and Molecular Structures, Shanghai University, Shanghai 200444, China
| | - Shunbo Hu
- Physics Department, State Key Laboratory of Advanced Special Steel, and International Centre for Quantum and Molecular Structures, Shanghai University, Shanghai 200444, China
- Materials Genome Institute and Shanghai Key Laboratory of High Temperature Superconductors, Shanghai University, Shanghai 200444, China
| | - Shaowen Xu
- Physics Department, State Key Laboratory of Advanced Special Steel, and International Centre for Quantum and Molecular Structures, Shanghai University, Shanghai 200444, China
| | - Heng Gao
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- Songshan Lake Materials Laboratory, Dongguan 523808, Guangdong, China
| | - Guodong Zhao
- Physics Department, State Key Laboratory of Advanced Special Steel, and International Centre for Quantum and Molecular Structures, Shanghai University, Shanghai 200444, China
| | - Paolo Barone
- CNR-SPIN c/o Department of Physical and Chemical Sciences, Università of L'Aquila, Via Vetoio, L'Aquila 67100, Italy
| | - Alessandro Stroppa
- CNR-SPIN c/o Department of Physical and Chemical Sciences, Università of L'Aquila, Via Vetoio, L'Aquila 67100, Italy
| | - Wei Ren
- Physics Department, State Key Laboratory of Advanced Special Steel, and International Centre for Quantum and Molecular Structures, Shanghai University, Shanghai 200444, China
- Materials Genome Institute and Shanghai Key Laboratory of High Temperature Superconductors, Shanghai University, Shanghai 200444, China
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48
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Ghosh D, Welch E, Neukirch AJ, Zakhidov A, Tretiak S. Polarons in Halide Perovskites: A Perspective. J Phys Chem Lett 2020; 11:3271-3286. [PMID: 32216360 DOI: 10.1021/acs.jpclett.0c00018] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Metal halide perovskites (MHPs) have rapidly emerged as leading contenders in photovoltaic technology and other optoelectronic applications owing to their outstanding optoelectronic properties. After a decade of intense research, an in-depth understanding of the charge carrier transport in MHPs is still an active topic of debate. In this Perspective, we discuss the current state of the field by summarizing the most extensively studied carrier transport mechanisms, such as electron-phonon scattering limited dynamics, ferroelectric effects, Rashba-type band splitting, and polaronic transport. We further extensively discuss the emerging experimental and computational evidence for dominant polaronic carrier dynamics in MHPs. Focusing on both small and large polarons, we explore the fundamental aspects of their motion through the lattice, protecting the photogenerated charge carriers from the recombination process. Finally, we outline different physical and chemical approaches considered recently to study and exploit the polaron transport in MHPs.
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Affiliation(s)
- Dibyajyoti Ghosh
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
- Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Eric Welch
- Material Science, Engineering and Commercialization Department, Texas State University, Texas 78666, United States
- Department of Physics, Texas State University, Texas 78666, United States
| | - Amanda J Neukirch
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Alex Zakhidov
- Material Science, Engineering and Commercialization Department, Texas State University, Texas 78666, United States
- Department of Physics, Texas State University, Texas 78666, United States
| | - Sergei Tretiak
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
- Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
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49
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Li Y, He S, Luo X, Lu X, Wu K. Strong Spin-Selective Optical Stark Effect in Lead Halide Perovskite Quantum Dots. J Phys Chem Lett 2020; 11:3594-3600. [PMID: 32310664 DOI: 10.1021/acs.jpclett.0c00879] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The strong spin-orbital coupling and intense optical transition in lead halide perovskites enable facile optical injection and manipulation of spin states potentially useful for spintronics, one manifestation of which is the optical Stark effect (OSE). A strong OSE would benefit from discrete energy levels and a strong band edge transition with concentrated oscillator strength, which can be realized in three-dimensionally confined quantum dots (QDs). This idea, however, has not been explored yet for perovskite materials. Here we report the observation of strong OSE in perovskite colloidal QDs using circularly polarized transient absorption spectroscopy. The large OSE shifts correspond to transition dipoles as large as 52 D, which compares favorably to those recently reported for higher-dimensional perovskites as well as transition metal dichalcogenide monolayers. Colloidal synthesis also allows for facile tuning of the OSE spectral ranges of perovskite QDs via sizes and compositions, and the impact of these parameters on the OSE is examined, providing fundamental insights into the band edge transition of lead halide perovskites.
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Affiliation(s)
- Yulu Li
- State Key Laboratory of Molecular Reaction Dynamics and Dynamics Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Shan He
- State Key Laboratory of Molecular Reaction Dynamics and Dynamics Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
| | - Xiao Luo
- State Key Laboratory of Molecular Reaction Dynamics and Dynamics Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
| | - Xin Lu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Kaifeng Wu
- State Key Laboratory of Molecular Reaction Dynamics and Dynamics Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
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Affiliation(s)
- David B Mitzi
- Department of Mechanical Engineering and Materials Science and Department of Chemistry , Duke University
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