1
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Tao K, Li Q, Yan Q. Narrow-Bandgap Tellurium-Based Chiral Hybrid Perovskite Single Crystals with Rashba-Dresselhaus Effect and Piezoelectricity. J Phys Chem Lett 2024; 15:6024-6030. [PMID: 38819005 DOI: 10.1021/acs.jpclett.4c01262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Chiral hybrid perovskites have aroused great interest due to their unique versatile properties. However, designing chiral perovskites with narrow bandgaps is challenging, with their electronic properties such as the Rashba-Dresselhaus effect and piezoelectricity remaining unclear. Herein, single crystals of zero-dimensional (0D) tellurium-based chiral hybrid perovskite, (R-/S-α-PEA)2TeI6 and (R-/S-α-PEA)2TeBr6 (PEA = phenylethylammonium), with sizes of over 5 mm are grown by seed-crystal-assisted solution-temperature-lowering. The optical bandgaps are about 1.60 and 2.18 eV for the iodide and bromide analogues, respectively, which are the lowest among various chiral lead-free hybrid perovskites with the same halide ions in the X-site to the best of our knowledge. First-principles calculations reveal that (R-/S-α-PEA)2TeBr6 shows a larger Rashba-Dresselhaus spin-splitting than (R-/S-α-PEA)2TeI6, probably thanks to the greater distortion of [TeBr6] octahedra. Moreover, the piezoelectric coefficients d33 of (R-/S-α-PEA)2TeI6 and (R-/S-α-PEA)2TeBr6 are about 2.6 and 1.8 pC N-1, respectively. This work deepens the understanding of physical properties of 0D tellurium-based chiral perovskites with potential multifunctionality, including spintronic and piezoelectric performances.
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Affiliation(s)
- Kezheng Tao
- Engineering Research Centre of Advanced Rare Earth Materials (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Qiang Li
- Engineering Research Centre of Advanced Rare Earth Materials (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Qingfeng Yan
- Engineering Research Centre of Advanced Rare Earth Materials (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
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2
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Coccia C, Morana M, Mahata A, Kaiser W, Moroni M, Albini B, Galinetto P, Folpini G, Milanese C, Porta A, Mosconi E, Petrozza A, De Angelis F, Malavasi L. Ligand-Induced Chirality in ClMBA 2 SnI 4 2D Perovskite. Angew Chem Int Ed Engl 2024; 63:e202318557. [PMID: 38189576 DOI: 10.1002/anie.202318557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 01/09/2024]
Abstract
Chiral perovskites possess a huge applicative potential in several areas of optoelectronics and spintronics. The development of novel lead-free perovskites with tunable properties is a key topic of current research. Herein, we report a novel lead-free chiral perovskite, namely (R/S-)ClMBA2 SnI4 (ClMBA=1-(4-chlorophenyl)ethanamine) and the corresponding racemic system. ClMBA2 SnI4 samples exhibit a low band gap (2.12 eV) together with broad emission extending in the red region of the spectrum (∼1.7 eV). Chirality transfer from the organic ligand induces chiroptical activity in the 465-530 nm range. Density functional theory calculations show a Rashba type band splitting for the chiral samples and no band splitting for the racemic isomer. Self-trapped exciton formation is at the origin of the large Stokes shift in the emission. Careful correlation with analogous lead and lead-free 2D chiral perovskites confirms the role of the symmetry-breaking distortions in the inorganic layers associated with the ligands as the source of the observed chiroptical properties providing also preliminary structure-property correlation in 2D chiral perovskites.
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Affiliation(s)
- Clarissa Coccia
- Department of Chemistry and INSTM, University of Pavia, Via Tarameli 12, 27100, Pavia, Italy
| | - Marta Morana
- Department of Earth Science, University of Firenze, Via G. La Pira 4, 50121, Firenze, Italy
| | - Arup Mahata
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), 06123, Perugia, Italy
- Department of Chemistry, Indian Institute of Technology Hyderabad Kandi, Sangareddy, Telangana, 502285, India
| | - Waldemar Kaiser
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), 06123, Perugia, Italy
| | - Marco Moroni
- Department of Chemistry and INSTM, University of Pavia, Via Tarameli 12, 27100, Pavia, Italy
| | - Benedetta Albini
- Department of Physics, University of Pavia, Via Bassi 6, 27100, Pavia, Italy
| | - Pietro Galinetto
- Department of Physics, University of Pavia, Via Bassi 6, 27100, Pavia, Italy
| | - Giulia Folpini
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, 20133, Milan, Italy
- Istituto di Fotonica e Nanotecnologie - CNR, 20133, Milan, Italy
| | - Chiara Milanese
- Department of Chemistry and INSTM, University of Pavia, Via Tarameli 12, 27100, Pavia, Italy
| | - Alessio Porta
- Department of Chemistry and INSTM, University of Pavia, Via Tarameli 12, 27100, Pavia, Italy
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), 06123, Perugia, Italy
| | - Annamaria Petrozza
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, 20133, Milan, Italy
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), 06123, Perugia, Italy
- Department of Chemistry, Biology and Biotechnology, University of Perugia and INSTM, 06123, Perugia, Italy
- SKKU Institute of Energy Science and Technology (SIEST) Sungkyunkwan University, Suwon, 440-746, Korea
| | - Lorenzo Malavasi
- Department of Chemistry and INSTM, University of Pavia, Via Tarameli 12, 27100, Pavia, Italy
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3
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Cheng J, Yi G, Zhang Z, Long Y, Zeng H, Huang L, Zou G, Lin Z. In Situ Chiral Template Approach to Synthesize Homochiral Lead Iodides for Second-Harmonic Generation. Angew Chem Int Ed Engl 2024; 63:e202318385. [PMID: 38126929 DOI: 10.1002/anie.202318385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 12/23/2023]
Abstract
Homochiral halide perovskites have gained increasing attention because of their fascinating optoelectronic properties and prospective applications in laser technologies. However, the limited choice of chiral organic templates severely restricts their structural diversity and second-harmonic generation (SHG) effects. Here, we present an in situ chiral template approach for the synthesis of one-dimensional (1D) homochiral lead iodides. A chiral imine (L-ipp) template was generated in situ by reacting L-proline (L-pro) and acetone under ambient conditions. Notably, L-ipp can cooperate with L-pro to direct the formation of a homochiral lead iodide with dual chiral templates, which is unprecedented in crystalline metal halides. The homochiral lead iodide containing both L-ipp and L-pro shows a strong SHG response of 8.0 times that of KH2 PO4 (8.0×KDP). The SHG efficiency is one of the largest values reported to date for any homochiral lead halides under 1064 nm laser irradiation. A comparative study shows that homochiral 1D lead iodides containing either L-ipp or L-pro exhibit relatively weak SHG responses (≤1.0×KDP). This work demonstrates the advantage of using two different chiral templates over a single chiral template in enhancing the SHG responses of halide materials.
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Affiliation(s)
- Juan Cheng
- College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Gangji Yi
- College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Zhizhuan Zhang
- College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Ying Long
- College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Hongmei Zeng
- College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Ling Huang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, P. R. China
| | - Guohong Zou
- College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Zhien Lin
- College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
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4
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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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5
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Guan J, Zheng Y, Cheng P, Han W, Han X, Wang P, Xin M, Shi R, Xu J, Bu XH. Free Halogen Substitution of Chiral Hybrid Metal Halides for Activating the Linear and Nonlinear Chiroptical Properties. J Am Chem Soc 2023. [PMID: 38039190 DOI: 10.1021/jacs.3c09395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2023]
Abstract
Halogen substitution has been proven as an effective approach to the band gap engineering and optoelectronic modulation of organic-inorganic hybrid metal halide (OIHMH) materials. Various high-performance mixed halide OIHMH film materials have been primarily obtained through the substitution of coordinated halogens in their inorganic octahedra. Herein, we propose a new strategy of substitution of free halogen outside the inorganic octahedra for constructing mixed halide OIHMH single crystals with chiral structures, resulting in a boost of their linear and nonlinear chiroptical properties. The substitution from DMA4[InCl6]Cl (DMA = dimethylammonium) to DMA4[InCl6]Br crystals through a facile antisolvent vaporization method produces centimeter-scale single crystals with high thermal stability along with high quantum yield photoluminescence, conspicuous circularly polarized luminescence, and greatly enhanced second harmonic generation (SHG). In particular, the obtained DMA4[InCl6]Br single crystal features an intrinsic chiral structure, exhibiting a significant SHG circular dichroism (SHG-CD) response with a highest reported anisotropy factor (gSHG-CD) of 1.56 among chiral OIHMH materials. The enhancements in both linear and nonlinear chiroptical properties are directly attributed to the modulation of octahedral distortion. The mixed halide OIHMH single crystals obtained by free halogen substitution confine the introduced halogens within free halogen sites of the lattice, thereby ensuring the stability of compositions and properties. The successful employment of such a free halogen substitution approach may broaden the horizon of the regulation of structures and the optoelectronic properties of the OIHMH materials.
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Affiliation(s)
- Junjie Guan
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Yongshen Zheng
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Puxin Cheng
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Wenqing Han
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Xiao Han
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Peihan Wang
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Mingyang Xin
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Rongchao Shi
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Jialiang Xu
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Xian-He Bu
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
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6
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Wang H, Li J, Lu H, Gull S, Shao T, Zhang Y, He T, Chen Y, He T, Long G. Chiral Hybrid Germanium(II) Halide with Strong Nonlinear Chiroptical Properties. Angew Chem Int Ed Engl 2023; 62:e202309600. [PMID: 37610865 DOI: 10.1002/anie.202309600] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/09/2023] [Accepted: 08/23/2023] [Indexed: 08/25/2023]
Abstract
Due to the pronounced anisotropic response to circularly polarized light, chiral hybrid organic-inorganic metal halides have been regarded as promising candidates for the application in nonlinear chiroptics, especially for the second-harmonic generation circular dichroism (SHG-CD) effect. However, designing novel lead-free chiral hybrid metal halides with large anisotropy factors and high laser-induced damage thresholds (LDT) of SHG-CD remains challenging. Herein, we develop the first chiral hybrid germanium halide, (R/S-NEA)3 Ge2 I7 ⋅H2 O (R/S-NGI), and systematically investigated its linear and nonlinear chiroptical properties. S-NGI and R-NGI exhibit large anisotropy factors (gSHG-CD ) of 0.45 and 0.48, respectively, along with a high LDT of 38.46 GW/cm2 ; these anisotropy factors were the highest values among the reported lead-free chiral hybrid metal halides. Moreover, the effective second-order nonlinear optical coefficient of S-NGI could reach up to 0.86 pm/V, which was 2.9 times higher than that of commercial Y-cut quartz. Our findings facilitate a new avenue toward lead-free chiral hybrid metal halides, and their implementation in nonlinear chiroptical applications.
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Affiliation(s)
- Hebin Wang
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Tianjin Key Lab for Rare Earth Materials and Applications, Renewable Energy Conversion and Storage Center (RECAST), National Institute for Advanced Materials, Nankai University, Tianjin, 300350, China
| | - Junzi Li
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Haolin Lu
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Tianjin Key Lab for Rare Earth Materials and Applications, Renewable Energy Conversion and Storage Center (RECAST), National Institute for Advanced Materials, Nankai University, Tianjin, 300350, China
| | - Sehrish Gull
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Tianjin Key Lab for Rare Earth Materials and Applications, Renewable Energy Conversion and Storage Center (RECAST), National Institute for Advanced Materials, Nankai University, Tianjin, 300350, China
| | - Tianyin Shao
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Tianjin Key Lab for Rare Earth Materials and Applications, Renewable Energy Conversion and Storage Center (RECAST), National Institute for Advanced Materials, Nankai University, Tianjin, 300350, China
| | - Yunxin Zhang
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Tianjin Key Lab for Rare Earth Materials and Applications, Renewable Energy Conversion and Storage Center (RECAST), National Institute for Advanced Materials, Nankai University, Tianjin, 300350, China
| | - Tengfei He
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Tianjin Key Lab for Rare Earth Materials and Applications, Renewable Energy Conversion and Storage Center (RECAST), National Institute for Advanced Materials, Nankai University, Tianjin, 300350, China
- The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yongsheng Chen
- The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Tingchao He
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Guankui Long
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Tianjin Key Lab for Rare Earth Materials and Applications, Renewable Energy Conversion and Storage Center (RECAST), National Institute for Advanced Materials, Nankai University, Tianjin, 300350, China
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7
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Guo Z, Li J, Liu R, Yang Y, Wang C, Zhu X, He T. Spatially Correlated Chirality in Chiral Two-Dimensional Perovskites Revealed by Second-Harmonic-Generation Circular Dichroism Microscopy. NANO LETTERS 2023; 23:7434-7441. [PMID: 37552583 DOI: 10.1021/acs.nanolett.3c01863] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
Understanding the chiral mechanism of chiral hybrid perovskites is a prerequisite for developing relevant chiroptoelectronic applications. Although conventional circular dichroism (CD) spectroscopy can be used to characterize chirality in chiral perovskites, it has a low signal-to-noise ratio and can provide only information about macroscopic chirality. Herein, with the aim of revealing the microscopic chiral mechanism in chiral perovskites, we utilize a spacer cation alloying strategy to construct chiral two-dimensional perovskites. For the first time, we demonstrate second-harmonic-generation CD microarea imaging in chiral perovskite thin films to unveil their spatially correlated chirality. In combination with theoretical calculations, it is revealed that the spatially correlated chirality is caused by localized out-of-plane supramolecular orientations. This work will not only advance the understanding of the mechanism of chiroptical activity in chiral perovskites but also provide inspiration for the rational design and synthesis of perovskites for chirality-related nonlinear optoelectronic devices.
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Affiliation(s)
- Zhihang Guo
- State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Junzi Li
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Rulin Liu
- School of Science and Engineering, Chinese University of Hong Kong, Shenzhen 518172, China
| | - Yang Yang
- The Institute of Seawater Desalination and Multipurpose Utilization, Ministry of Natural Resources (Tianjin), Tianjin 300192, China
| | - Changshun Wang
- State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xi Zhu
- School of Science and Engineering, Chinese University of Hong Kong, Shenzhen 518172, China
| | - Tingchao He
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
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8
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Calabrese M, Pizzi A, Beccaria R, Frontera A, Resnati G. Halogen Bonding Assembles Anion⋅⋅⋅Anion Architectures in Non-centrosymmetric Iodate and Bromate Crystals. Chemphyschem 2023; 24:e202300298. [PMID: 37306232 DOI: 10.1002/cphc.202300298] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/03/2023] [Accepted: 06/09/2023] [Indexed: 06/13/2023]
Abstract
Single crystal X-ray diffraction of iodate and bromate salts shows that the I and Br atoms in IO3 - and BrO3 - anions form short and linear O-I/Br⋅⋅⋅O contacts with the O atoms of nearby anions. Non-centrosymmetric systems are formed wherein anions are orderly aligned into supramolecular 1D and 2D networks. Theoretical evidences, namely the outcome of QTAIM and NCIplot studies, prove the attractive nature of these contacts and the ability of iodate and bromate anions to act as robust halogen bond (HaB) donors. The HaB is proposed as a general and effective assisting tool to control the architecture of acentric iodate salts.
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Affiliation(s)
- Miriam Calabrese
- NFMLab, Dept. Chemistry, Materials, Chemical Engineering "Giulio Natta", Politecnico di Milano, via L. Mancinelli 7, 20131, Milano, Italy
| | - Andrea Pizzi
- NFMLab, Dept. Chemistry, Materials, Chemical Engineering "Giulio Natta", Politecnico di Milano, via L. Mancinelli 7, 20131, Milano, Italy
| | - Roberta Beccaria
- NFMLab, Dept. Chemistry, Materials, Chemical Engineering "Giulio Natta", Politecnico di Milano, via L. Mancinelli 7, 20131, Milano, Italy
| | - Antonio Frontera
- Dept. Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122, Palma de Mallorca (Baleares), Spain
| | - Giuseppe Resnati
- NFMLab, Dept. Chemistry, Materials, Chemical Engineering "Giulio Natta", Politecnico di Milano, via L. Mancinelli 7, 20131, Milano, Italy
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9
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Branzi L, Kavanagh A, Back M, Speghini A, Gun'ko YK, Benedetti A. Chirality in luminescent Cs 3Cu 2Br 5 microcrystals produced via ligand-assisted reprecipitation. Chem Commun (Camb) 2023; 59:6024-6027. [PMID: 37186125 DOI: 10.1039/d3cc00719g] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Herein we report new chiral luminescent Cs3Cu2Br5 needle-like microcrystals and the analysis of their optical properties and the effect of the ligand structure on the transfer of chirality.
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Affiliation(s)
- Lorenzo Branzi
- Department of Molecular Science and Nanosystems, Ca' Foscari University of Venice, Via Torino 155 Venezia Mestre, Venezia, VE, Italy
- School of Chemistry, CDT ACM, CRANN and AMBER Research Centres, Trinity College Dublin, College Green, Dublin 2, Ireland.
| | - Aoife Kavanagh
- School of Chemistry, CDT ACM, CRANN and AMBER Research Centres, Trinity College Dublin, College Green, Dublin 2, Ireland.
| | - Michele Back
- Department of Molecular Science and Nanosystems, Ca' Foscari University of Venice, Via Torino 155 Venezia Mestre, Venezia, VE, Italy
| | - Adolfo Speghini
- Nanomaterials Research Group, Department of Biotechnology and INSTM, RU of Verona, University of Verona, Strada le Grazie 15, Verona, Italy
| | - Yurii K Gun'ko
- School of Chemistry, CDT ACM, CRANN and AMBER Research Centres, Trinity College Dublin, College Green, Dublin 2, Ireland.
| | - Alvise Benedetti
- Department of Molecular Science and Nanosystems, Ca' Foscari University of Venice, Via Torino 155 Venezia Mestre, Venezia, VE, Italy
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10
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Zheng H, Zhang R, Wu X, Zhang Q, Wu Z, Wong WPD, Chen J, Xu QH, Loh KP. Strain-Driven Solid-Solid Crystal Conversion in Chiral Hybrid Pseudo-Perovskites with Paramagnetic-to-Ferromagnetic Transition. J Am Chem Soc 2023; 145:3569-3576. [PMID: 36727858 DOI: 10.1021/jacs.2c12525] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Hybrid organic-inorganic perovskites (HOIPs) are promising stimuli-responsive materials (SPMs) owing to their molecular softness and tailorable structural dimensionality. The design of mechanically responsive HOIPs requires an in-depth understanding of how lattice strain induces intermolecular rearrangement that impacts physical properties. While chirality transfer from an organic cation to an inorganic lattice is known to influence chiral-optical properties, its effect on strain-induced phase conversion has not been explored. As opposed to achiral or racemic organic cations, chiral organic cations can potentially afford a new dimension in strain-responsive structural change. Herein, we demonstrate that mechanical strain induces a solid phase crystal conversion in chiral halide pseudo-perovskite single crystals (R/S)-(FE)2CuCl4 (FE = (4-Fluorophenyl)ethylamine) from a 0D isolated CuCl4 tetrahedral to 1D corner-sharing CuFCl5 octahedral framework via the incorporation of Cu···F interaction and N-H···F hydrogen bonding. This strain-induced crystal-to-crystal conversion involves the connection of neighboring 0D CuCl4 tetrahedra via Cu2+-Cl--Cu2+ linkages as well as the incorporation of a F-terminated organic cation as one of the X atoms in BX6 octahedra, leading to a reduced band gap and paramagnetic-to-ferromagnetic conversion. Control experiments using nonchiral or racemic perovskite analogs show the absence of such solid phase conversion. To demonstrate pressure-sensitive properties, the 0D phase is dispersed in water-soluble poly(vinyl alcohol) (PVA) polymer, which can be applied to a large-scale pressure-induced array display on fibrous Spandex substrates via a screen-printing method.
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Affiliation(s)
- Haining Zheng
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China.,Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Rongrong Zhang
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China.,Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Xiao Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Qihan Zhang
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore
| | - Zhenyue Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Walter P D Wong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Jingsheng Chen
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore
| | - Qing-Hua Xu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Kian Ping Loh
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China.,Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
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11
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Li B, Yu Y, Xin M, Xu J, Zhao T, Kang H, Xing G, Zhao P, Zhang T, Jiang S. Second-order nonlinear optical properties of copper-based hybrid organic-inorganic perovskites induced by chiral amines. NANOSCALE 2023; 15:1595-1601. [PMID: 36601712 DOI: 10.1039/d2nr05022f] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Recently, chiral hybrid organic-inorganic perovskites (HOIPs) are drawing wide attention due to their intrinsic noncentrosymmetric structures which result in fascinating properties such as ferroelectronics and second-order nonlinear optics (NLO). However, previous research mainly focused on chiral lead-based halide perovskites ignoring that the toxic Pb element is harmful to humans and the environment. Herein, we successfully synthesized block-like (R-/S-NEA)2CuCl4 (NEA = 1-naphthylethylamine) and needle-like (R-/S-CYHEA)6Cu3Cl12 (CYHEA = 1-cyclohexylethylamine) single crystals, which crystallize in the Sohncke P21 and I2 space group, respectively. Each pair of chiral perovskite enantiomers shows mirror circular dichroism (CD) signals. The thin films show an efficient second harmonic generation (SHG) response and the NLO coefficients of (R-NEA)2CuCl4 and (R-CYHEA)6Cu3Cl12 are 11.74 and 3.04 pm V-1, respectively, under 920 nm excitation with Y-cut quartz as a reference, which shows that the chiral amine has a significant effect on the SHG behavior. The high SHG response of (R-NEA)2CuCl4 is perhaps due to the rigidity of the aromatic amine, which leads to highly asymmetrical space groups. Our results provide guidelines for designing and tuning the SHG response in chiral HOIPs.
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Affiliation(s)
- Bin Li
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology, Tianjin University, No. 135, Yaguan Road, Tianjin 300350, P. R. China.
| | - Ying Yu
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology, Tianjin University, No. 135, Yaguan Road, Tianjin 300350, P. R. China.
| | - Mingyang Xin
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin, 300350, P.R. China
| | - Jialiang Xu
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin, 300350, P.R. China
| | - Tianzhe Zhao
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology, Tianjin University, No. 135, Yaguan Road, Tianjin 300350, P. R. China.
| | - Huimin Kang
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology, Tianjin University, No. 135, Yaguan Road, Tianjin 300350, P. R. China.
| | - Guoxiang Xing
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology, Tianjin University, No. 135, Yaguan Road, Tianjin 300350, P. R. China.
| | - Peisheng Zhao
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology, Tianjin University, No. 135, Yaguan Road, Tianjin 300350, P. R. China.
| | - Tianyong Zhang
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology, Tianjin University, No. 135, Yaguan Road, Tianjin 300350, P. R. China.
| | - Shuang Jiang
- Tianjin Key Laboratory of Applied Catalysis Science and Technology, School of Chemical Engineering and Technology, Tianjin University, No. 135, Yaguan Road, Tianjin 300350, P. R. China.
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12
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Wang Q, Lu Y, He RL, Chen R, Qiao L, Pan F, Yang Z, Song C. Spin Selectivity in Chiral Hybrid Cobalt Halide Films with Ultrasmooth Surface. SMALL METHODS 2022; 6:e2201048. [PMID: 36403249 DOI: 10.1002/smtd.202201048] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/25/2022] [Indexed: 06/16/2023]
Abstract
Introducing chirality into low-dimensional hybrid organic-inorganic halides (HOIHs) creates brand-new opportunities for HOIHs in spintronics and spin-related optoelectronics owing to chirality-induced spin selectivity (CISS). However, preparing smooth films of low-dimensional HOIHs with small roughness is still a great challenge due to the hybrid and complex crystal structure, which severely inhibits their applications in spintronic devices. Exploring new lead-free chiral HOIHs with both efficient spin selectivity and excellent film quality is urgently desired. Here, cobalt-based chiral metal halide crystals (R/S-NEA)2 CoCl4 constructed by 0D [CoCl4 ] tetrahedrons and 1-(1-naphtyl)ethylamine (NEA) are synthesized. The orderly configuration of NEA molecules stabilized by noncovalent CH···π interaction endows (NEA)2 CoCl4 with good film-forming ability. (NEA)2 CoCl4 films exhibit strong chiroptical activity (gCD ≈ 0.05) and significant spin-polarized transport (CISS efficiency up to 90%). Furthermore, ultrasmooth films (roughness ∼ 0.3 nm) with enhanced crystallinity can be achieved by incorporating tiny amount tris(8-oxoquinoline)aluminum that has analogous conjugated structure to NEA. The realization of highly efficient spin selectivity and sub-nanometer roughness in lead-free chiral halides can boost the practical process of low-dimensional HOIHs in spintronics and other fields.
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Affiliation(s)
- Qian Wang
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Ying Lu
- Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Rui-Lin He
- Department of Chemistry, Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Tsinghua University Beijing, Beijing, 100084, China
| | - Ruyi Chen
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Leilei Qiao
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Feng Pan
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Zhou Yang
- Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Cheng Song
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
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13
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Guo Z, Li J, Luo T, Cui Y, Wang C, He T. Strong two-photon absorption induced by energy funneling in chiral quasi-2D perovskites. OPTICS LETTERS 2022; 47:5573-5576. [PMID: 37219271 DOI: 10.1364/ol.474280] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 09/29/2022] [Indexed: 05/24/2023]
Abstract
Quasi-2D Ruddlesden-Popper-type perovskites (RPPs) exhibit excellent nonlinear optical properties due to their multiple quantum well structures with large exciton binding energy. Herein, we introduce chiral organic molecules into RPPs and investigate their optical properties. It is found that the chiral RPPs possess effective circular dichroism in the ultraviolet to visible wavelengths. Two-photon absorption (TPA)-induced efficient energy funneling from small- to large-n domains is observed in the chiral RPP films, which induces strong TPA with a coefficient up to 4.98 cm MW-1. This work will broaden the application of quasi-2D RPPs in chirality-related nonlinear photonic devices.
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14
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Xiao S, Liang J, Li J, Cheng J, Zhu X, He T. Tunable optical activities in chiral transition metal oxide nanoparticles. NANOSCALE 2022; 14:15414-15421. [PMID: 36218542 DOI: 10.1039/d2nr02555h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Chiral transition metal oxides (TMOs) are widely used in various optoelectronic devices. However, the currently poor understanding of how the optical activities of TMOs can be regulated considerably hinders their applications. We have synthesized a series of chiral TMO nanoparticles (NPs), i.e., MoOx (x = 2, 2.4 and 2.5) and Co3O4. Compared with TMO NPs with L-/D-cysteine molecules as the capping ligand, L-/D-histidine-capped TMO NPs possess larger anisotropic factors (gabs), which are as high as ∼0.01 and ∼0.02 for L-/D-histidine-capped MoO2.5 and Co3O4 NPs, respectively. A nondegenerate coupled oscillator (NDCO) theoretical calculation confirms that L-/D-histidine molecules can generate a smaller electric dipole moment and thus induce higher optical activity than L-/D-cysteine molecules. Impressively, the chiral NPs exhibit broadband second harmonic generation. This work indicates that chiral TMO NPs have potential for application in nonlinear optical devices.
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Affiliation(s)
- Shuyu Xiao
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Jiechun Liang
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, China.
| | - Junzi Li
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Jiaji Cheng
- Country Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.
| | - Xi Zhu
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, China.
| | - Tingchao He
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
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15
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Li X, Guan Y, Li X, Fu Y. Stereochemically Active Lone Pairs and Nonlinear Optical Properties of Two-Dimensional Multilayered Tin and Germanium Iodide Perovskites. J Am Chem Soc 2022; 144:18030-18042. [PMID: 36134903 DOI: 10.1021/jacs.2c07535] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two-dimensional (2D) metal halide perovskites are promising tunable semiconductors. Previous studies have focused on Pb-based structures, whereas the multilayered Sn- and Ge-based analogues are largely unexplored, even though they potentially exhibit more diverse structural chemistry and properties associated with the more polarizable ns2 lone-pair electrons. Herein, we report the synthesis and structures of 2D tin iodide perovskites (BA)2(A)Sn2I7, where BA = n-butylammonium and A = methylammonium, formamidinium, dimethylammonium, guanidinium, or acetamidinium, and those of 2D germanium iodide perovskites (BA)2(A)Ge2I7, where A = methylammonium or formamidinium. By comparing these structures along with their Pb counterparts, we establish correlations between the effect of group IV-cation's lone-pair stereochemical activity on the perovskite crystal structures and the resulting semiconducting properties such as bandgaps and carrier-phonon interactions and nonlinear optical properties. We find that the strength of carrier-phonon interaction increases with increasing lone-pair activity, leading to a more prominent photoluminescence tail on the low-energy side. Moreover, (BA)2(A)Ge2I7 exhibit strong second harmonic generation with second-order nonlinear coefficients of ∼10 pm V-1 that are at least 10 times those of Sn counterparts and 100 times those of Pb counterparts. We also report the third-order two-photon absorption coefficients of (BA)2(A)Sn2I7 to be ∼10 cm MW-1, which are one order of magnitude larger than those of the Pb counterparts and traditional inorganic semiconductors. These results not only highlight the role of lone-pair activity in linking the compositions and physical properties of 2D halide perovskites but also demonstrate 2D tin and germanium iodide perovskites as promising lead-free alternatives for nonlinear optoelectronic devices.
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Affiliation(s)
- Xinyu Li
- Beijing National Laboratory for Molecular Science, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yan Guan
- Beijing National Laboratory for Molecular Science, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xiaotong Li
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Yongping Fu
- Beijing National Laboratory for Molecular Science, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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16
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Ghazanfari MR, Vittadello L, Al-Sabbagh D, Santhosh A, Frankcom C, Fuß F, von Randow CA, Siemensmeyer K, Vrijmoed JC, Emmerling F, Jerabek P, Imlau M, Thiele G. Remarkable Infrared Nonlinear Optical, Dielectric, and Strong Diamagnetic Characteristics of Semiconducting K 3[BiS 3]. J Phys Chem Lett 2022; 13:6987-6993. [PMID: 35894924 DOI: 10.1021/acs.jpclett.2c01689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The ternary sulfido bismuthate K3[BiS3] is synthesized in quantitative yields. The material exhibits nonlinear optical properties with strong second harmonic generation properties at arbitrary wavelengths in the infrared spectral range and a notable laser-induced damage threshold of 5.22 GW cm-2 for pulsed laser radiation at a wavelength of 1040 nm, a pulse duration of 180 fs, and a repetition rate of 12.5 kHz. K3[BiS3] indicates semiconductivity with a direct optical band gap of 2.51 eV. Dielectric and impedance characterizations demonstrate κ values in the range of 6-13 at 1 kHz and a high electrical resistivity. A strong diamagnetic behavior with a susceptibility of -2.73 × 10-4 m3 kg-1 at room temperature is observed. These results suggest it is a promising nonlinear optical candidate for the infrared region. The synergic physical characteristics of K3[BiS3] provide insight into the correlation of optical, electrical, and magnetic properties.
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Affiliation(s)
- Mohammad R Ghazanfari
- Fachbereich Biologie, Chemie und Pharmazie, Institut für Chemie, Freie Universität Berlin, Fabeckstraße 34-36, 14195 Berlin, Germany
| | - Laura Vittadello
- School of Physics, Osnabrück University, Barbarastraße 7, 49076 Osnabrück, Germany
| | - Dominik Al-Sabbagh
- Fachbereich 6.3: Strukturanalytik, Bundesanstalt für Materialforschung und -prüfung, Richard-Willstätter-Straße 11, 12489 Berlin, Germany
| | - Archa Santhosh
- Institute of Hydrogen Technology, Helmholtz-Zentrum Hereon, Max-Planck-Straße 1, 21502 Geesthacht, Germany
| | - Charlie Frankcom
- Fachbereich Biologie, Chemie und Pharmazie, Institut für Chemie, Freie Universität Berlin, Fabeckstraße 34-36, 14195 Berlin, Germany
| | - Friederike Fuß
- Fachbereich Biologie, Chemie und Pharmazie, Institut für Chemie, Freie Universität Berlin, Fabeckstraße 34-36, 14195 Berlin, Germany
| | - Clara A von Randow
- Fachbereich Biologie, Chemie und Pharmazie, Institut für Chemie, Freie Universität Berlin, Fabeckstraße 34-36, 14195 Berlin, Germany
| | - Konrad Siemensmeyer
- Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - Johannes C Vrijmoed
- Fachbereich Geowissenschaften, Freie Universität Berlin, Malteserstraße 74-100, 12249 Berlin, Germany
| | - Franziska Emmerling
- Fachbereich 6.3: Strukturanalytik, Bundesanstalt für Materialforschung und -prüfung, Richard-Willstätter-Straße 11, 12489 Berlin, Germany
| | - Paul Jerabek
- Institute of Hydrogen Technology, Helmholtz-Zentrum Hereon, Max-Planck-Straße 1, 21502 Geesthacht, Germany
| | - Mirco Imlau
- School of Physics, Osnabrück University, Barbarastraße 7, 49076 Osnabrück, Germany
| | - Günther Thiele
- Fachbereich Biologie, Chemie und Pharmazie, Institut für Chemie, Freie Universität Berlin, Fabeckstraße 34-36, 14195 Berlin, Germany
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17
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Synthesis, characterization and theoretical calculations of four chiral schiff base materials for second harmonic generation applications. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Control of light, spin and charge with chiral metal halide semiconductors. Nat Rev Chem 2022; 6:470-485. [PMID: 37117313 DOI: 10.1038/s41570-022-00399-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/11/2022] [Indexed: 11/08/2022]
Abstract
The relationship between the structural asymmetry and optoelectronic properties of functional materials is an active area of research. The movement of charges through an oriented chiral medium depends on the spin configuration of the charges, and such systems can be used to control spin populations without magnetic components - termed the chiral-induced spin selectivity (CISS) effect. CISS has mainly been studied in chiral organic molecules and their assemblies. Semiconductors are non-magnetic extended systems that allow for the control of charge transport, as well as the absorption and emission of light. Therefore, introducing chirality into semiconductors would enable control over charge, spin and light without magnetic components. Chiral metal halide semiconductors (MHSs) are hybrid organic-inorganic materials that combine the properties of small chiral organic molecules with those of extended inorganic semiconductors. Reports of CISS in chiral MHSs have resulted in breakthroughs in our understanding of CISS and in the realization of spin-dependent optoelectronic properties. This Review examines the fundamentals and applications of CISS in chiral MHSs. The structural diversity and key structure-property relationships, such as chiral transfer from the organic to the inorganic components, are summarized. With a focus on the underlying chemistry and physics, the control of spin, light and charge in these semiconductors is explored.
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19
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Qi S, Ge F, Han X, Cheng P, Shi R, Liu C, Zheng Y, Xin M, Xu J. 0D chiral hybrid indium(III) halides for second harmonic generation. Dalton Trans 2022; 51:8593-8599. [PMID: 35621191 DOI: 10.1039/d2dt00925k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Chiral metal halides have shown great potential for application in next generation nonlinear optical (NLO) devices owing to their intrinsic non-centrosymmetry. However, the structures and properties of chiral hybrid indium halides have been rarely reported, especially when it comes to second-harmonic generation (SHG) in NLO. In this work, we have synthesized a pair of new zero-dimensional (0D) chiral hybrid indium halides, (R-MPEA)6InCl9 and (S-MPEA)6InCl9, and studied their NLO properties. The as-prepared chiral hybrid indium halides crystallize in non-centrosymmetric P3221 and P3121 space groups, respectively. NLO studies show that 0D chiral hybrid indium halide crystals exhibit strong SHG responses with high polarization ratio and high laser damage threshold (LDT). This work enriches the family of chiral hybrid metal halide materials and offers a feasible strategy for the targeted design and synthesis of intrinsically non-centrosymmetric metal halide materials for NLO applications.
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Affiliation(s)
- Siming Qi
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin 300350, P. R. China.
| | - Fei Ge
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin 300350, P. R. China.
| | - Xiao Han
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin 300350, P. R. China.
| | - Puxin Cheng
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin 300350, P. R. China.
| | - Rongchao Shi
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin 300350, P. R. China.
| | - Chao Liu
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin 300350, P. R. China.
| | - Yongshen Zheng
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin 300350, P. R. China.
| | - Mingyang Xin
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin 300350, P. R. China.
| | - Jialiang Xu
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin 300350, P. R. China.
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20
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Song Z, Yu B, Liu G, Meng L, Dang Y. Chiral Hybrid Copper(I) Iodide Single Crystals Enable Highly Selective Ultraviolet-Pumped Circularly Polarized Luminescence Applications. J Phys Chem Lett 2022; 13:2567-2575. [PMID: 35286088 DOI: 10.1021/acs.jpclett.2c00494] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Light-emitting diodes (LEDs) with the circularly polarized luminescence features have attracted attention to the promising applications ranging from solid-state lighting and displays to bioencoding and anticounterfeiting. The prerequisite of circularly polarized luminescence is highly emissive chiral materials. Here, we demonstrated that (R/S-MBA)4Cu4I8·2H2O (MBA = α-methylbenzylaminium) and acentric Gua6Cu4I10 (Gua = guanidinium) single crystals were grown on the basis of Gua3Cu2I5 by the slow evaporation method. (R/S-MBA)4Cu4I8·2H2O single crystals exhibited excellent circularly polarized luminescence (CPL) characteristics. More importantly, ultraviolet-pumped LEDs (UV-LEDs) based on (R/S-MBA)4Cu4I8·2H2O and Gua6Cu4I10 single crystals exhibit a higher optical selectivity when exposed to right-handed and left-handed circular polarization (RCP and LCP) conditions. (S-MBA)4Cu4I8·2H2O single crystals and Gua6Cu4I10 single crystals induced by the (R)-MBA cation exhibit the different polarized light intensities at PL peak positions in different λ/4 waveplate polarizer angle directions, which provides new possibilities for the further applications from 3D displays to spintronics, as well as anticounterfeiting.
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Affiliation(s)
- Zhexin Song
- School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, No. 57, Jingxuan West Road, Qufu 273165, P. R. China
| | - Binyin Yu
- School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, No. 57, Jingxuan West Road, Qufu 273165, P. R. China
| | - Guokui Liu
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, P. R. China
| | - Lingqiang Meng
- Materials Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P. R. China
| | - Yangyang Dang
- School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, No. 57, Jingxuan West Road, Qufu 273165, P. R. China
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21
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Wu JJ, Guo Y, Yao WD, Liu WL, Guo SP. Symmetry breaking of A 3M 2X 9-type perovskite derivatives induced by polar quaternary ammonium cations: achieving efficient nonlinear optical properties. Dalton Trans 2022; 51:4878-4883. [PMID: 35260873 DOI: 10.1039/d2dt00451h] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Low-dimensional organic-inorganic metal halides, especially lead-free perovskites, are attracting increasing attention because of their environmentally friendly processing, flexible structures, chemical stability, and promising nonlinear optical properties. Herein, we report a new stable polar 0D lead-free hybrid bismuth chloride to enable the second-harmonic generation (SHG) active material (BTA)3Bi2Cl9 (BTA = benzyltriethylammonium, C6H5CH2N(C2H5)3+) that was obtained by the antisolvent vapor diffusion method and crystallized in the polar Cc space group. Its structure features organic cations surrounded by face-sharing [Bi2Cl9]3- dimers. (BTA)3Bi2Cl9 exhibits a wide direct bandgap (3.21 eV) and a strong phase-matchable SHG conversion efficiency (1.39 × KDP). Theoretical calculation reveals that the SHG response is owing to the synergistic effect of distorted inorganic [Bi2Cl9]3- anions and polar organic BTA+ cations. This work not only enriches the family of organic-inorganic A3M2X9 (A = monovalent cations; M = trivalent metal ions; and X = halide ions) NLO crystals but also provides the possibilities for further designing novel lead-free semiconducting piezoelectric, pyroelectric and ferroelectric materials.
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Affiliation(s)
- Jia-Jing Wu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China.
| | - Yue Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China.
| | - Wen-Dong Yao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China.
| | - Wen-Long Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China.
| | - Sheng-Ping Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China.
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22
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Ge F, Li BH, Cheng P, Li G, Ren Z, Xu J, Bu XH. Chiral Hybrid Copper(I) Halides for High Efficiency Second Harmonic Generation with a Broadband Transparency Window. Angew Chem Int Ed Engl 2022; 61:e202115024. [PMID: 35001461 DOI: 10.1002/anie.202115024] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Indexed: 12/21/2022]
Abstract
Chiral hybrid organic-inorganic metal halides (HOMHs) with intrinsic noncentrosymmetry have shown great promise for applications in second-order nonlinear optics (NLO). However, established chiral HOMHs often suffer from their relatively small band gaps, which lead to negative impacts on transparent window and laser-induced damage thresholds (LDT). Here, we have synthesized two chiral HOMHs based on CuI halides, namely (R-/S-MBA)CuBr2 , which feature well-balanced NLO performances with a highly efficient SHG response, outstanding optical transparency, and high LDT. The effective second-order NLO coefficient of (R-MBA)CuBr2 has been determined to be ≈24.7 pm V-1 , which is two orders of magnitude higher than that of their CuII counterparts. This work shows the promising potential of CuI -based chiral HOMHs for nonlinear photonic applications in wide wavelength regions.
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Affiliation(s)
- Fei Ge
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin, 300350, P. R. China
| | - Bo-Han 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, 116023, P. R. China
| | - Puxin Cheng
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin, 300350, P. R. China
| | - Geng Li
- National Supercomputer Center in Tianjin, Tianjin, 300457, China
| | - Zefeng Ren
- 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, 116023, P. R. China
| | - Jialiang Xu
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin, 300350, P. R. China
| | - Xian-He Bu
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin, 300350, P. R. China.,State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Weijin Road 94, Tianjin, 300071, P. R. China
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23
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Guo Z, Li J, Liang J, Wang C, Zhu X, He T. Regulating Optical Activity and Anisotropic Second-Harmonic Generation in Zero-Dimensional Hybrid Copper Halides. NANO LETTERS 2022; 22:846-852. [PMID: 35023753 DOI: 10.1021/acs.nanolett.1c04669] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Structural engineering permits the introduction of chirality into organic-inorganic hybrid metal halides (HMHs), which creates a promising and exclusive material for applications in various optoelectronics. However, the optical activity regulation of chiral HMHs remains largely unexplored. In this work, we have synthesized two pairs of lead-free chiral HMHs with a zero-dimensional tetrahedral arrangement, i.e., (R- and S-1-(1-naphthyl)ethylammonium)2CuCl4 and (R- and S-1-(2-naphthyl)ethylammonium)2CuCl4. The magnitude of optical activity in these HMHs can be efficiently modulated as a result of the different magnetic transition dipole moments. Furthermore, these HMHs exhibited effective second-harmonic generation (SHG) and distinct SHG-circular dichroism (CD), with (R-1-(1-naphthyl)ethylammonium)2CuCl4 having an anisotropy factor (gSHG-CD) of up to 0.41. This work not only provides insights into regulating the optical activity and anisotropic SHG effect of lead-free chiral HMHs but also confirms the feasibility of SHG-CD spectroscopy as a promising tool for characterizing the intrinsic optical activity of chiral materials.
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Affiliation(s)
- Zhihang Guo
- State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Junzi Li
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Jiechun Liang
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, China
| | - Changshun Wang
- State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xi Zhu
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, China
| | - Tingchao He
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
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24
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Ge F, Li BH, Cheng P, Li G, Ren Z, Xu J, Bu XH. Chiral Hybrid Copper(I) Halides for High Efficiency Second Harmonic Generation with a Broadband Transparency Window. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fei Ge
- Nankai University School of Mathematical Sciences CHINA
| | - Bo-Han Li
- Chinese Academy of Sciences Dalian Institute of Chemical Physics CHINA
| | - Puxin Cheng
- Nankai University School of Mathematical Sciences CHINA
| | - Geng Li
- National Supercomputer Centre in Linkoping national supercomputer Center in Tianjin CHINA
| | - Zefeng Ren
- Chinese Academy of Sciences Dalian Institute of Chemical Physics CHINA
| | - Jialiang Xu
- Nankai University School of Materials Science and Engineering Tongyan Road 38 300350 Tianjin CHINA
| | - Xian-He Bu
- Nankai University School of Mathematical Sciences CHINA
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25
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Lu Y, Wang Q, He R, Zhou F, Yang X, Wang D, Cao H, He W, Pan F, Yang Z, Song C. Highly Efficient Spin‐Filtering Transport in Chiral Hybrid Copper Halides. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ying Lu
- Department of Materials Physics and Chemistry School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China
| | - Qian Wang
- Key Laboratory of Advanced Materials (MOE) School of Materials Science and Engineering Tsinghua University Beijing 100084 China
| | - Ruilin He
- Department of Chemistry, Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education Tsinghua University Beijing 100084 China
| | - Foxin Zhou
- Department of Materials Physics and Chemistry School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China
| | - Xia Yang
- Department of Materials Physics and Chemistry School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China
| | - Dong Wang
- Department of Materials Physics and Chemistry School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China
| | - Hui Cao
- Department of Materials Physics and Chemistry School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China
| | - Wanli He
- Department of Materials Physics and Chemistry School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China
| | - Feng Pan
- Key Laboratory of Advanced Materials (MOE) School of Materials Science and Engineering Tsinghua University Beijing 100084 China
| | - Zhou Yang
- Department of Materials Physics and Chemistry School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China
| | - Cheng Song
- Key Laboratory of Advanced Materials (MOE) School of Materials Science and Engineering Tsinghua University Beijing 100084 China
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26
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Lu Y, Wang Q, He R, Zhou F, Yang X, Wang D, Cao H, He W, Pan F, Yang Z, Song C. Highly Efficient Spin-Filtering Transport in Chiral Hybrid Copper Halides. Angew Chem Int Ed Engl 2021; 60:23578-23583. [PMID: 34423529 DOI: 10.1002/anie.202109595] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Indexed: 01/03/2023]
Abstract
Chiral Pb(Sn)-I hybrid organic-inorganic perovskites exhibit outstanding chiral-induced spin selectivity (CISS) performance, but the nontoxic lead-free hybrid materials with high stability are still greatly desired for spin filtering in spintronic applications. We synthesize chiral hybrid copper halides (R/S-MBA)2 CuX4 (MBA=methylbenzylammonium; X=Cl, Br) with characteristic 0D CuX4 tetrahedral structural motifs, combining the low toxicity of Cu2+ and air stability of halide ions (Cl- and Br- ). Despite similar structural and electronic features, (R/S-MBA)2 CuBr4 shows much smaller chiroptical activity than the chloride counterpart. Magnetically conductive atomic force microscopy measurements display a typical spin-polarized charge-transport property with high efficiency up to 90 % for both copper halides. Our work expands the CISS effect into eco-friendly and stable metal-organic halides, which is promising for applications in spintronics based on transition-metal hybrid systems.
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Affiliation(s)
- Ying Lu
- Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Qian Wang
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Ruilin He
- Department of Chemistry, Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Foxin Zhou
- Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Xia Yang
- Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Dong Wang
- Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Hui Cao
- Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Wanli He
- Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Feng Pan
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Zhou Yang
- Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Cheng Song
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
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27
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Yao L, Zeng Z, Cai C, Xu P, Gu H, Gao L, Han J, Zhang X, Wang X, Wang X, Pan A, Wang J, Liang W, Liu S, Chen C, Tang J. Strong Second- and Third-Harmonic Generation in 1D Chiral Hybrid Bismuth Halides. J Am Chem Soc 2021; 143:16095-16104. [PMID: 34558894 DOI: 10.1021/jacs.1c06567] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Breaking the symmetry of a crystal structure can enable even-order nonlinear activities, including second-harmonic generation (SHG). The emerging chiral hybrid organic-inorganic metal halides feature unique optical and electronic properties and flexible crystal structures, making them a class of promising nonlinear optical materials. However, their nonlinear response performances are currently inferior to traditional nonlinear crystals, because of the lack of research on resonant enhancement and third-harmonic generation (THG). Herein, we designed chiral hybrid bismuth halides with naturally nonsymmetrical structure to enable SHG. Simultaneously, these chiral compounds preserve 1D crystal structures to create strong free exciton, broad self-trapped exciton (STE), and discrete band energy levels, which facilitate the resonant enhancement of SHG and THG susceptibilities. These new chiral films showcase superior effective SHG susceptibility (χ(2) ∼ 130.5 pm V-1 at an interesting wavelength of 1550 nm), exceeding that of the reference, a commercial LiNbO3 (χ(2) ∼ 83.4 pm V-1) single-crystal film. Furthermore, their THG intensities are even higher than their SHG intensities, with effective THG susceptibility (χ(3)) being ∼9.0 × 106 pm2 V-2 at 1550 nm (37 times that of the reference monolayer WS2). Their high SHG and THG performances indicate the promising future of these 1D chiral hybrid bismuth halides toward nonlinear optical applications.
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Affiliation(s)
- Li Yao
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zhouxiaosong Zeng
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, School of Physics and Electronics, Hunan University, Changsha 410006, China
| | - Chengkun Cai
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Peng Xu
- Research Institute for Magnetoelectronics & Weak Magnetic-field Detection, College of Science, China Three Gorges University, Yichang 443002, China
| | - Honggang Gu
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Liang Gao
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Junbo Han
- Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xiaowei Zhang
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
| | - Xi Wang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xiao Wang
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, School of Physics and Electronics, Hunan University, Changsha 410006, China
| | - Anlian Pan
- College of Materials Science and Engineering, Hunan University, Changsha 410006, China
| | - Jian Wang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Wenxi Liang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Shiyuan Liu
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China.,State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.,Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Chao Chen
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China.,School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jiang Tang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China.,School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
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