1
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Pan Q, Gu ZX, Zhou RJ, Feng ZJ, Xiong YA, Sha TT, You YM, Xiong RG. The past 10 years of molecular ferroelectrics: structures, design, and properties. Chem Soc Rev 2024; 53:5781-5861. [PMID: 38690681 DOI: 10.1039/d3cs00262d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Ferroelectricity, which has diverse important applications such as memory elements, capacitors, and sensors, was first discovered in a molecular compound, Rochelle salt, in 1920 by Valasek. Owing to their superiorities of lightweight, biocompatibility, structural tunability, mechanical flexibility, etc., the past decade has witnessed the renaissance of molecular ferroelectrics as promising complementary materials to commercial inorganic ferroelectrics. Thus, on the 100th anniversary of ferroelectricity, it is an opportune time to look into the future, specifically into how to push the boundaries of material design in molecular ferroelectric systems and finally overcome the hurdles to their commercialization. Herein, we present a comprehensive and accessible review of the appealing development of molecular ferroelectrics over the past 10 years, with an emphasis on their structural diversity, chemical design, exceptional properties, and potential applications. We believe that it will inspire intense, combined research efforts to enrich the family of high-performance molecular ferroelectrics and attract widespread interest from physicists and chemists to better understand the structure-function relationships governing improved applied functional device engineering.
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Affiliation(s)
- Qiang Pan
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, P. R. China.
| | - Zhu-Xiao Gu
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, P. R. China.
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210008, P. R. China.
| | - Ru-Jie Zhou
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, P. R. China.
| | - Zi-Jie Feng
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, P. R. China.
| | - Yu-An Xiong
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, P. R. China.
| | - Tai-Ting Sha
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, P. R. China.
| | - Yu-Meng You
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, P. R. China.
| | - Ren-Gen Xiong
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, P. R. China.
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2
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Jiang HH, Zhang N, Mao WX, Lan JF, Zhou LX, Xu HM, Zhang HY, Liao WQ. Modulating the ferroelectric phases in cholesteryl-based organic compounds with perfluoroalkyl tail engineering. Chem Commun (Camb) 2024; 60:4322-4325. [PMID: 38535993 DOI: 10.1039/d4cc00840e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Here, we synthesized a series of cholesteryl-based compounds, whose phases and their transformation can be modulated by temperature and the chain length of the fluoroalkyl moieties. To our knowledge, this is the first time that the phase transition could be modulated with perfluoroalkyl tail engineering in organic single-component ferroelectric crystals.
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Affiliation(s)
- Huan-Huan Jiang
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People's Republic of China
| | - Nan Zhang
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People's Republic of China
| | - Wei-Xin Mao
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China.
| | - Jin-Fei Lan
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China.
| | - Long-Xing Zhou
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China.
| | - Hua-Ming Xu
- Jiangsu Key Laboratory for Biomaterials and Devices, State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 211189, People's Republic of China.
| | - Han-Yue Zhang
- Jiangsu Key Laboratory for Biomaterials and Devices, State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 211189, People's Republic of China.
| | - Wei-Qiang Liao
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China.
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3
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Barman S, Pal A, Mukherjee A, Paul S, Datta A, Ghosh S. Supramolecular Organic Ferroelectric Materials from Donor-Acceptor Systems. Chemistry 2024; 30:e202303120. [PMID: 37941296 DOI: 10.1002/chem.202303120] [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: 09/26/2023] [Revised: 11/04/2023] [Accepted: 11/06/2023] [Indexed: 11/10/2023]
Abstract
Organic ferroelectric (FE) materials, though known for more than a century, are yet to reach close to the benchmark of inorganic or hybrid materials in terms of the magnitude of polarization. Amongst the different classes of organic systems, donor (D)-acceptor (A) charge-transfer (CT) complexes are recognized as promising for ferroelectricity owing to their neutral-to-ionic phase transition at low temperature. This review presents an overview of different supramolecular D-A systems that have been explored for FE phase transitions. The discussion begins with a general introduction of ferroelectricity and its different associated parameters. Then it moves on to show early examples of CT cocrystals that have shown FE properties at sub-ambient temperature. Subsequently, recent developments in the field of room temperature (RT) ferroelectricity, exhibited by H-bond-stabilized lock-arm supramolecular-ordering (LASO) in D-A co-crystals or other FE CT-crystals devoid of neutral-ionic phase transition are discussed. Then the discussion moves on to emerging reports on other D-A soft materials such as gel and foldable polymers; finally it shows very recent developments in ferroelectricity in supramolecular assemblies of single-component dipolar or ambipolar π-systems, exhibiting intra-molecular charge transfer. The effects of structural nuances such as H-bonding, balanced charge transfer and chirality on the observed ferroelectricity is described with the available examples. Finally, piezoelectricity in recently reported ambipolar ADA-type systems are discussed to highlight the future potential of these soft materials in micropower energy harvesting.
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Affiliation(s)
- Shubhankar Barman
- School of Applied and Interdisciplinary Sciences, Indian Association for Cultivation of Science, 2 A and 2B Raja S. C. Mullick Road, 700032, Kolkata, India
| | - Aritri Pal
- School of Applied and Interdisciplinary Sciences, Indian Association for Cultivation of Science, 2 A and 2B Raja S. C. Mullick Road, 700032, Kolkata, India
| | - Anurag Mukherjee
- School of Applied and Interdisciplinary Sciences, Indian Association for Cultivation of Science, 2 A and 2B Raja S. C. Mullick Road, 700032, Kolkata, India
| | - Swadesh Paul
- School of Applied and Interdisciplinary Sciences, Indian Association for Cultivation of Science, 2 A and 2B Raja S. C. Mullick Road, 700032, Kolkata, India
| | - Anuja Datta
- School of Applied and Interdisciplinary Sciences, Indian Association for Cultivation of Science, 2 A and 2B Raja S. C. Mullick Road, 700032, Kolkata, India
- Technical Research Center, Indian Association for Cultivation of Science, 2 A and 2B Raja S. C. Mullick Road, 700032, Kolkata, India
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences, Indian Association for Cultivation of Science, 2 A and 2B Raja S. C. Mullick Road, 700032, Kolkata, India
- Technical Research Center, Indian Association for Cultivation of Science, 2 A and 2B Raja S. C. Mullick Road, 700032, Kolkata, India
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4
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Weng YR, Zhou F, Shi Y, Tang SY, Lv HP, Yang MJ, Tang YY, Ai Y. H/F Substitution Achieved Enantiomeric Organic Inorganic Hybrid Perovskites and Trigonal Structure [DMFP] 3(CdBr 3)(CdBr 4). Inorg Chem 2023. [PMID: 37990884 DOI: 10.1021/acs.inorgchem.3c02511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Organic-inorganic hybrid perovskites (OIHPs) have been emerging as a hot research topic due to their potential applications in energy storage, semiconductors, and electronic devices. Herein, we systematically investigated the synthesis and phase transition behaviors of the enantiomeric OIHPs, (R) and (S)-N,N-dimethyl-3-fluoropyrrolidinium cadmium bromide ([DMFP][CdBr3]), and the hybrid trigonal structure [DMFP]3 (CdBr3)(CdBr4). The enantiomers have a mirror-symmetric structure and enhanced solid-state phase transition points of 417 and 443 K, in contrast to the nonfluorinated parent compound, N,N-dimethyl-pyrrolidinium cadmium bromide ([DMP][CdBr3], 385 K). Moreover, racemic H/F substitution on the pyrrolidinium cations leads to the formation of a trigonal compound, showing above-room-temperature structural phase transition and dominant ferroelasticity. This work discovers chiral enantiomeric OIHPs through H/F substitution, demonstrating a useful chemical synthesis strategy for exploring novel phase transition materials.
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Affiliation(s)
- Yan-Ran Weng
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China
| | - Feng Zhou
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China
| | - Yu Shi
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China
| | - Shu-Yu Tang
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China
| | - Hui-Peng Lv
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China
| | - Meng-Juan Yang
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China
| | - Yuan-Yuan Tang
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China
| | - Yong Ai
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China
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5
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Wang P, Tong YQ, Yin SQ, Gu QJ, Huang B, Zhu AX. Exceptional structural phase transition near room temperature in an organic-inorganic hybrid ferroelectric. Chem Commun (Camb) 2023; 59:13651-13654. [PMID: 37905986 DOI: 10.1039/d3cc04186g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
An organic-inorganic hybrid ferroelectric, (C6H5CH2CH2NH3)2[HgI4], undergoes an exceptional structural phase transition near room temperature, triggered by a flip of half the organic cations and an order-disorder transition of the inorganic anions, and may be regarded as a displacive-type ferroelectric. This finding provides a new structural phase transition mechanism in molecule-based ferroelectrics.
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Affiliation(s)
- Ping Wang
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China.
| | - Yu-Qiao Tong
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China.
| | - Shi-Qing Yin
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China.
| | - Qian-Jun Gu
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China.
| | - Bo Huang
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China.
| | - Ai-Xin Zhu
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China.
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6
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Huang YL, Ying TT, Zhao YR, Tang YZ, Tan YH, Li QL, Liu WF, Wan MY, Wang FX. Zero-Dimensional Sn-Based Enantiomeric Phase-Transition Materials with High-Tc and Dielectric Switching. Chemistry 2023; 29:e202301499. [PMID: 37493075 DOI: 10.1002/chem.202301499] [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: 05/11/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 07/27/2023]
Abstract
The combination of chirality and phase-transition materials has broad application prospects. Therefore, based on the quasi-spherical theory and the thought strategy of introducing chirality, we have successfully synthesized a pair of chiral enantiomeric ligands (R/S)-triethyl-(2-hydroxypropyl)ammonium iodide, which can be combined with a tin hexachloride anion to obtain a pair of new organic-inorganic hybrid enantiomeric high-temperature plastic phase-transition materials: (R/S)-[CH3 CH(OH)CH2 N(CH2 CH3 )3 ]2 SnCl6 (1-R/1-S), which have a high temperature phase transition of Tc =384 K, crystallize in the P21 chiral space group at room temperature, and have obvious CD signals. In addition, compounds 1-R and 1-S have a good low-loss dielectric switch and broadband gap. This work is conducive to the research into chiral high-temperature reversible plastic phase-transition materials, and promotes the development of multi-functional phase-transition materials.
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Affiliation(s)
- Yan-Le Huang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Ting-Ting Ying
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Yi-Ran Zhao
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Yun-Zhi Tang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Yu-Hui Tan
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Qiao-Lin Li
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Wei-Fei Liu
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Ming-Yang Wan
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
| | - Fang-Xin Wang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Jiangxi University of Science and Technology, 156 Hakka Avenue, Jiangxi, Ganzhou, 341000, P. R. China
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7
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Peng H, Yu H, Tang SY, Zeng YL, Li PF, Tang YY, Zhang ZX, Xiong RG, Zhang HY. High- T c Single-Component Organosilicon Ferroelectric Crystal Obtained by H/F Substitution. JACS AU 2023; 3:603-609. [PMID: 36873683 PMCID: PMC9975823 DOI: 10.1021/jacsau.3c00004] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/21/2023] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
Organic single-component ferroelectrics are highly desirable for their low molecular mass, light weight, low processing temperature, and excellent film-forming properties. Organosilicon materials with a strong film-forming ability, weather resistance, nontoxicity, odorlessness, and physiological inertia are very suitable for device applications related to the human body. However, the discovery of high-T c organic single-component ferroelectrics has been very scarce, and the organosilicon ones even less so. Here, we used a chemical design strategy of H/F substitution to successfully synthesize a single-component organosilicon ferroelectric tetrakis(4-fluorophenylethynyl)silane (TFPES). Systematic characterizations and theory calculations revealed that, compared with the parent nonferroelectric tetrakis(phenylethynyl)silane, fluorination caused slight modifications of the lattice environment and intermolecular interactions, inducing a 4/mmmFmm2-type ferroelectric phase transition at a high T c of 475 K in TFPES. To our knowledge, this T c should be the highest among the reported organic single-component ferroelectrics, providing a wide operating temperature range for ferroelectrics. Moreover, fluorination also brought about a significant improvement in the piezoelectric performance. Combined with excellent film properties, the discovery of TFPES provides an efficient path for designing ferroelectrics suitable for biomedical and flexible electronic devices.
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Affiliation(s)
- Hang Peng
- Ordered
Matter Science Research Center, Nanchang
University, Nanchang 330031, People’s Republic
of China
| | - Hang Yu
- Ordered
Matter Science Research Center, Nanchang
University, Nanchang 330031, People’s Republic
of China
| | - Shu-Yu Tang
- Ordered
Matter Science Research Center, Nanchang
University, Nanchang 330031, People’s Republic
of China
| | - Yu-Ling Zeng
- Ordered
Matter Science Research Center, Nanchang
University, Nanchang 330031, People’s Republic
of China
| | - Peng-Fei Li
- Ordered
Matter Science Research Center, Nanchang
University, Nanchang 330031, People’s Republic
of China
| | - Yuan-Yuan Tang
- Ordered
Matter Science Research Center, Nanchang
University, Nanchang 330031, People’s Republic
of China
| | - Zhi-Xu Zhang
- State
Key Laboratory of Bioelectronics, Southeast
University, Nanjing 211189, People’s Republic
of China
| | - Ren-Gen Xiong
- Ordered
Matter Science Research Center, Nanchang
University, Nanchang 330031, People’s Republic
of China
| | - Han-Yue Zhang
- State
Key Laboratory of Bioelectronics, Southeast
University, Nanjing 211189, People’s Republic
of China
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8
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Barman S, Bandyopadhyay S, Ghosh A, Das S, Mondal T, Datta A, Ghosh S, Datta A. Ferroelectricity in a hydrogen-bonded alternating donor-acceptor supramolecular copolymer. Chem Commun (Camb) 2022; 58:10508-10511. [PMID: 36043449 DOI: 10.1039/d2cc02506j] [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
This communication reports synergistic H-bonding and charge-transfer (CT) interaction-promoted alternating supramolecular copolymerization of amide-functionalized pyrene (Py) and naphthalene-diimide (NDI) building blocks and the emergence of ferroelectricity with saturation polarization ∼3.2 μC cm-2, Curie temperature ∼304 K, and coercive field ∼8.5 kV cm-1 at 100 Hz. The Py or NDI molecules on their own do not exhibit any ferroelectric hysteresis, indicating an essential role of both CT-interaction and H-bonding in ferroelectricity. Computational studies provide insight into the origin of the polarization and the importance of the NDI/Py ratio. This study, showing room temperature ferroelectricity in purely organic systems, is of high relevance for flexible electronics and sensors. It opens up new opportunities for soft FE-materials with ample scope for further structural optimization.
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Affiliation(s)
- Shubhankar Barman
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata-700032, India
| | - Supriya Bandyopadhyay
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata-700032, India
| | - Anupam Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata-700032, India.
| | - Surajit Das
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata-700032, India
| | - Tathagata Mondal
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata-700032, India
| | - Ayan Datta
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata-700032, India.
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata-700032, India
| | - Anuja Datta
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata-700032, India
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9
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Mukherjee A, Barman S, Ghosh A, Datta A, Datta A, Ghosh S. A Hierarchical (Macro)molecular Assembly Assisted by Donor-Acceptor Charge-Transfer Interactions Exhibiting Room-Temperature Ferroelectricity. Angew Chem Int Ed Engl 2022; 61:e202203817. [PMID: 35353441 DOI: 10.1002/anie.202203817] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Indexed: 12/12/2022]
Abstract
This communication reveals co-assembly of an electron-deficient naphthalene-diimide (NDI)-appended polyurethane (P1) and electron-rich pyrene (Py), forming an organogel with prominent room-temperature ferroelectricity. In a non-polar medium, intra-chain hydrogen-bonding among the urethane groups of P1 produces a folded structure with an array of the NDIs in the periphery, which intercalate Py by charge-transfer (CT)-interaction. Such CT-complexation enables slow crystallization of the peripheral hydrocarbons, causing gelation with nanotubular morphology, in which the wall consists of the alternating NDI-Py stack. Such D-A assembly exhibits ferroelectricity (saturation polarization Ps ≈0.8 μC cm-2 and coercive field Ec ≈8 kV cm-1 at 500 V and 10 Hz frequency) with Curie temperature (Tc ) of ≈350 K, which can be related to the disassembly of the CT-complex. In the absence of Py, P1 forms spherical aggregates, showing dielectric behaviour.
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Affiliation(s)
- Anurag Mukherjee
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
| | - Shubhankar Barman
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
| | - Anupam Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
| | - Ayan Datta
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
| | - Anuja Datta
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
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10
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Li YK, Ying TT, Zhang H, Tan YH, Tang YZ, Wang FX, Wan MY. Unusual symmetry breaking in high-temperature enantiomeric ferroelectrics with large spontaneous polarization. Dalton Trans 2022; 51:6860-6867. [PMID: 35438712 DOI: 10.1039/d2dt00592a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chiral organic-inorganic hybrid perovskites have gained extensive research interest due to their combination of chirality and the excellent optical, electrical and spin properties of perovskite materials, especially in two-dimensional hybrid perovskites. Herein, we report two-dimensional organic-inorganic perovskite enantiomeric ferroelectric [(R)-β-MPA]2CdCl4 (1) and [(S)-β-MPA]2CdCl4 (2) (MPA+ =methylphenethylammonium). Their mirror relationships are verified by both circular dichroism (CD) and crystal structures. At the same time, the two exhibit very similar ferroelectricity and related properties, including high Curie temperature (343 K), large spontaneous polarization (4.65 μC cm-2), and low coercive force field (13 kV cm-1). Unusually, at room temperature the crystal phase is monoclinic with the space group C2 and above the phase transition temperature it is triclinic with the space group P1, which means that the symmetry decreases with the increase of temperature. In addition, it exhibits a flexible switchable SHG response, while [(R)-β-MPA]2CdCl4 and [(S)-β-MPA]2CdCl4 have wide band gaps of 4.21 and 4.26 eV, respectively, mainly contributed by inorganic CdCl6 octahedra. This discovery opens a new way for the construction of two-dimensional enantiomeric molecular ferroelectrics.
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Affiliation(s)
- Yu-Kong Li
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
| | - Ting-Ting Ying
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
| | - Hao Zhang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
| | - Yu-Hui Tan
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
| | - Yun-Zhi Tang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
| | - Fang-Xin Wang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
| | - Ming-Yang Wan
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
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11
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Mukherjee A, Barman S, Ghosh A, Datta A, Datta A, Ghosh S. A Hierarchical (Macro)molecular Assembly Assisted by Donor‐Acceptor Charge‐Transfer Interactions Exhibiting Room‐Temperature Ferroelectricity. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Anupam Ghosh
- Indian Association for the Cultivation of Science SCS INDIA
| | - Ayan Datta
- Indian Association for the Cultivation of Science SCS INDIA
| | - Anuja Datta
- Indian Association for the Cultivation of Science SAIS INDIA
| | - Suhrit Ghosh
- Indian Association for the Cultivation of Science Polymer Science Unit 2A& B Raja S. C. Mullick Rd.Jadavur 700032 Kolkata INDIA
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12
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Xu Q, Ye L, Liao R, An Z, Wang C, Miao L, Shi C, Ye H, Zhang Y. H/F Substitution Induced Large Increase of
T
c
in a 3D Hybrid Rare‐Earth Double Perovskite Multifunctional Compound. Chemistry 2022; 28:e202103913. [DOI: 10.1002/chem.202103913] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Indexed: 01/07/2023]
Affiliation(s)
- Qi Xu
- Jiangxi University of Science and Technology Chaotic Matter Science Research Center
| | - Le Ye
- Jiangxi University of Science and Technology Chaotic Matter Science Research Center
| | - Rong‐Meng Liao
- Jiangxi University of Science and Technology Chaotic Matter Science Research Center
| | - Zhen An
- Jiangxi University of Science and Technology Chaotic Matter Science Research Center
| | - Chang‐Feng Wang
- Jiangxi University of Science and Technology Chaotic Matter Science Research Center
| | - Le‐Ping Miao
- Jiangxi University of Science and Technology Chaotic Matter Science Research Center
| | - Chao Shi
- Jiangxi University of Science and Technology Chaotic Matter Science Research Center
| | - Heng‐Yun Ye
- Jiangxi University of Science and Technology Chaotic Matter Science Research Center
| | - Yi Zhang
- Jiangxi University of Science and Technology Chaotic Matter Science Research Center
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13
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Mukherjee A, Barman S, Ghosh A, Chakraborty S, Datta A, Datta A, Ghosh S. Stable room temperature ferroelectricity in hydrogen-bonded supramolecular assemblies of ambipolar π-systems. Chem Sci 2022; 13:781-788. [PMID: 35173943 PMCID: PMC8768847 DOI: 10.1039/d1sc04617a] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 12/17/2021] [Indexed: 12/14/2022] Open
Abstract
This article reports H-bonding driven supramolecular polymerization of naphthalimide (A)-thiophene (D)-naphthalimide (A) (AD n A, n = 1-4) conjugated ambipolar π-systems and its remarkable impact on room temperature ferroelectricity. Electrochemical studies confirm the ambipolar nature of these AD n A molecules with the HOMO-LUMO gap varying between 2.05 and 2.29 eV. Electron density mapping from ESP calculations reveals intra-molecular charge separation as typically observed in ambipolar systems. In the aggregated state, AD1A and AD2A exhibit bathochromically shifted absorption bands while AD3A and AD4A show typical H-aggregation with a hypsochromic shift. Polarization vs. electric field (P-E) measurements reveal stable room temperature ferroelectricity for these supramolecular assemblies, most prominent for the AD2A system, with a Curie temperature (T c) ≈ 361 K and saturation polarization (P s) of ∼2 μC cm-2 at a rather low coercive field of ∼2 kV cm-1. Control molecules, lacking either the ambipolar chromophore or the amide functionality, do not show any ferroelectricity, vindicating the present molecular and supramolecular design. Computational studies enable structural optimization of the stacked oligomer(s) of AD2A molecules and reveal a significant increase in the macro-dipole moment (in the range of 10-12 Debye) going from the monomer to the oligomer(s), which provides the rationale for the origin of ferroelectricity in these supramolecular polymers.
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Affiliation(s)
- Anurag Mukherjee
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja SC Mallick Road, Jadavpur Kolkata 700032 India
| | - Shubhankar Barman
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja SC Mallick Road, Jadavpur Kolkata 700032 India
| | - Anupam Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja SC Mallick Road, Jadavpur Kolkata 700032 India
| | - Saptarshi Chakraborty
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja SC Mallick Road, Jadavpur Kolkata 700032 India
| | - Ayan Datta
- School of Chemical Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja SC Mallick Road, Jadavpur Kolkata 700032 India
| | - Anuja Datta
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja SC Mallick Road, Jadavpur Kolkata 700032 India
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja SC Mallick Road, Jadavpur Kolkata 700032 India
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14
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You X, Rao W, Han K, Wang L, Zhang M, Wei Z. Two quasi-spherical molecules [1,4-diazabicyclo(3.2.2)nonane]X (X = ClO 4, ReO 4) exhibit switchable phase transition, dielectric and second-harmonic-generation properties. NEW J CHEM 2022. [DOI: 10.1039/d2nj02531k] [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
Two quasi-spherical molecules [3.2.2-Hdabc]X (1,4-diazabicyclo[3.2.2]nonane = 3.2.2-dabcn, X = ClO4, ReO4) with a high phase transition temperature exhibited switchable phase transition as well as dielectric and SHG properties.
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Affiliation(s)
- Xiuli You
- Jiangxi key laboratory of organic chemistry, Jiangxi science and technology normal university, Nanchang, 330013, China
| | - Wenjun Rao
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, P. R. China
| | - Keke Han
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, P. R. China
| | - Lingyu Wang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, P. R. China
| | - Mengxia Zhang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, P. R. China
| | - Zhenhong Wei
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, P. R. China
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15
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Liao W, Deng B, Wang Z, Cheng T, Hu Y, Cheng S, Xiong R. Optically Induced Ferroelectric Polarization Switching in a Molecular Ferroelectric with Reversible Photoisomerization. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2102614. [PMID: 34716671 PMCID: PMC8693059 DOI: 10.1002/advs.202102614] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/23/2021] [Indexed: 05/27/2023]
Abstract
Ferroelectrics usually exhibit temperature-triggered structural changes, which play crucial roles in controlling their physical properties. However, although light is very striking as a non-contact, non-destructive, and remotely controlled external stimuli, ferroelectric crystals with light-triggered structural changes are very rare, which holds promise for optical control of ferroelectric properties. Here, an organic molecular ferroelectric, N-salicylidene-2,3,4,5,6-pentafluoroaniline (SA-PFA), which shows light-triggered structural change of reversible photoisomerization between cis-enol and trans-keto configuration is reported. SA-PFA presents clear ferroelectricity with the saturate polarization of 0.84 μC cm-2 , larger than those of some typical organic ferroelectrics with thermodynamically structural changes. Benefit from the reversible photoisomerization, the dielectric real part of SA-PFA can be reversibly switched by light. More strikingly, the photoisomerization enables SA-PFA to show reversible optically induced ferroelectric polarization switching. Such intriguing behaviors make SPFA a potential candidate for application in next-generation photo-controlled ferroelectric devices. This work sheds light on further exploration of more excellent molecular ferroelectrics with light-triggered structural changes for optical control of ferroelectric properties.
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Affiliation(s)
- Wei‐Qiang Liao
- Ordered Matter Science Research CenterNanchang UniversityNanchang330031P. R. China
| | - Bin‐Bin Deng
- Ordered Matter Science Research CenterNanchang UniversityNanchang330031P. R. China
| | - Zhong‐Xia Wang
- Ordered Matter Science Research CenterNanchang UniversityNanchang330031P. R. China
| | - Ting‐Ting Cheng
- Ordered Matter Science Research CenterNanchang UniversityNanchang330031P. R. China
| | - Yan‐Ting Hu
- Ordered Matter Science Research CenterNanchang UniversityNanchang330031P. R. China
| | - Shu‐Ping Cheng
- Ordered Matter Science Research CenterNanchang UniversityNanchang330031P. R. China
| | - Ren‐Gen Xiong
- Ordered Matter Science Research CenterNanchang UniversityNanchang330031P. R. China
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16
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Ai Y, Lv HP, Wang ZX, Liao WQ, Xiong RG. H/F substitution for advanced molecular ferroelectrics. TRENDS IN CHEMISTRY 2021. [DOI: 10.1016/j.trechm.2021.09.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Li Y, Du Y, Huang CR, Peng H, Zeng YL, Liu JC, Liao WQ. Homochiral anionic modification toward the chemical design of organic enantiomeric ferroelectrics. Chem Commun (Camb) 2021; 57:5171-5174. [PMID: 33903863 DOI: 10.1039/d1cc01675j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The well-developed design strategy of molecular modification for assembling molecular ferroelectrics mainly focuses on the cations. Herein, by homochiral anionic modification of the non-ferroelectric (quinuclidinium)(HSO4), we designed high-temperature multiaxial organic enantiomeric ferroelectrics, (quinuclidinium)(l- and d-camphorsulfonate). This work paves a new road for precisely constructing excellent molecular ferroelectrics.
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Affiliation(s)
- Yibao Li
- Key Laboratory of Organo-Phamaceutical Chemistry of Jiangxi Province, College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, People's Republic of China.
| | - Ye Du
- College of Chemistry, Nanchang University, Nanchang 330031, People's Republic of China.
| | - Chao-Ran Huang
- Key Laboratory of Organo-Phamaceutical Chemistry of Jiangxi Province, College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, People's Republic of China.
| | - Hang Peng
- College of Chemistry, Nanchang University, Nanchang 330031, People's Republic of China.
| | - Yu-Ling Zeng
- College of Chemistry, Nanchang University, Nanchang 330031, People's Republic of China.
| | - Jun-Chao Liu
- College of Chemistry, Nanchang University, Nanchang 330031, People's Republic of China.
| | - Wei-Qiang Liao
- College of Chemistry, Nanchang University, Nanchang 330031, People's Republic of China.
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18
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Fu D, Gao J, Huang P, Ren R, Shao T, Han L, Liu J, Gong J. Observation of Transition from Ferroelasticity to Ferroelectricity by Solvent Selective Effect in Anilinium Bromide. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Da‐Wei Fu
- Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 P. R. China
| | - Ji‐Xing Gao
- Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 P. R. China
| | - Pei‐Zhi Huang
- Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 P. R. China
| | - Rui‐Ying Ren
- Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 P. R. China
| | - Ting Shao
- Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 P. R. China
| | - Li‐Jun Han
- Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 P. R. China
| | - Jia Liu
- Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 P. R. China
| | - Jun‐Miao Gong
- Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 P. R. China
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19
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Cheng H, Yang MJ, Xu YQ, Li MZ, Ai Y. Target Designing Phase Transition Materials through Halogen Substitution. Chemphyschem 2021; 22:752-756. [PMID: 33590646 DOI: 10.1002/cphc.202100040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/15/2021] [Indexed: 11/12/2022]
Abstract
Crystalline materials have received extensive attention due to their extraordinary physical and chemical properties. Among them, phase transition materials have attracted great attention in the fields of photovoltaic, switchable dielectric devices, and ferroelectric memories, etc. However, many of them suffer from low phase transition temperatures, which limits their practical application. In this work, we systematically designed crystalline materials, (TMXM)2 PtCl6 (X=F, Cl, Br, I) through halogen substitution on the cations, aiming to improving phase transition temperature. The resulting phase transition of (TMXM)2 PtCl6 (X=F, Cl, Br, I) get a significant enhancement, compared to the parent compound [(CH3 )4 N]2 PtCl6 ((TM)2 PtCl6 ). Such phase transition temperature enhancement can be attributed to the introduction of halogen atoms that increase the potential energy barrier of the cation rotation. In addition, (TMBM)2 PtCl6 and (TMIM)2 PtCl6 have a low symmetry and crystallize in the space group C2 /c and P21 21 21 , respectively. This work highlights the halogen substitution in designing crystal materials with high phase transition temperature.
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Affiliation(s)
- Hao Cheng
- College of Chemistry, Nanchang University, Nanchang, 330031, P. R. China
| | - Meng-Juan Yang
- College of Chemistry, Nanchang University, Nanchang, 330031, P. R. China
| | - Yu-Qiu Xu
- College of Chemistry, Nanchang University, Nanchang, 330031, P. R. China
| | - Meng-Zhen Li
- College of Chemistry, Nanchang University, Nanchang, 330031, P. R. China
| | - Yong Ai
- College of Chemistry, Nanchang University, Nanchang, 330031, P. R. China
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20
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Fu D, Gao J, Huang P, Ren R, Shao T, Han L, Liu J, Gong J. Observation of Transition from Ferroelasticity to Ferroelectricity by Solvent Selective Effect in Anilinium Bromide. Angew Chem Int Ed Engl 2021; 60:8198-8202. [DOI: 10.1002/anie.202015219] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 01/20/2021] [Indexed: 01/05/2023]
Affiliation(s)
- Da‐Wei Fu
- Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 P. R. China
| | - Ji‐Xing Gao
- Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 P. R. China
| | - Pei‐Zhi Huang
- Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 P. R. China
| | - Rui‐Ying Ren
- Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 P. R. China
| | - Ting Shao
- Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 P. R. China
| | - Li‐Jun Han
- Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 P. R. China
| | - Jia Liu
- Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 P. R. China
| | - Jun‐Miao Gong
- Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Normal University Jinhua 321004 P. R. China
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21
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Liu YH, Peng H, Liao WQ. A lead-free bismuth iodide organic-inorganic ferroelectric semiconductor. Chem Commun (Camb) 2021; 57:647-650. [PMID: 33346305 DOI: 10.1039/d0cc07443h] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Organic-inorganic metal halide ferroelectric semiconductors are mainly lead halide ones, suffering from the presence of toxic lead. Herein, we report a lead-free bismuth iodide ferroelectric semiconductor [1,4-butanediammonium]BiI5, showing a high Curie temperature of 365 K and a small band gap of 1.95 eV, smaller than those of most lead halide counterparts.
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Affiliation(s)
- Yu-Hua Liu
- College of Chemistry, Nanchang University, Nanchang 330031, People's Republic of China.
| | - Hang Peng
- College of Chemistry, Nanchang University, Nanchang 330031, People's Republic of China.
| | - Wei-Qiang Liao
- College of Chemistry, Nanchang University, Nanchang 330031, People's Republic of China.
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22
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Li LS, Tan YH, Wei WJ, Gao HQ, Tang YZ, Han XB. Chiral Switchable Low-Dimensional Perovskite Ferroelectrics. ACS APPLIED MATERIALS & INTERFACES 2021; 13:2044-2051. [PMID: 33347285 DOI: 10.1021/acsami.0c19507] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Low-dimensional hybrid organic-inorganic perovskites (HOIPs) possess more localized electronic states and narrower conduction and valence bands to promote self-trapping of excitons and stronger exciton emission; therefore, they are widely used as building blocks for various applications in the fields of optoelectronics, photovoltaics, light-emitting diodes, luminescence, fluorescence, and so forth. Despite the past decades of intensive study, the discovered low-dimensional chiral HOIPs are rare as of the 1D chiral HOIP single crystals reported in 2003, as well as the low-dimensional chiral HOIP ferroelectrics are particularly scarce since the first chiral two-dimensional (2D) and/or one-dimensional (1D) HOIP ferroelectrics reported. Herein, two new low-dimensional HOIPs with the same conformational formula [R-MPA]2CdCl4 (R-MPA+ = (R)-(-)-1-methyl-3-phenylpropylamine) were successfully synthetized by means of regulating the stoichiometric proportion of R-MPA and CdCl2 in two ways of 1:1 (1) and 2:1 (2). By combining single-crystal X-ray diffraction, circular dichroism (CD) spectroscopy, differential scanning calorimetry, temperature-dependent dielectric constant, temperature-dependent second-harmonic generation (SHG) effect, polarization-dependent SHG response, and P-E hysteresis loop, we reveal that 1 is a 1D nonchiral molecular ferroelectric and 2 is the first zero-dimensional (0D) chiral ferroelectric with distinct CD signals; meanwhile, 2 exhibits increased properties of high-Tc, large dielectric constant, SHG isotropy, and ferroelectricity than that of 1. These results not only shed light on the high tunability of the low-dimensional HOIP ferroelectrics but also open up an avenue to explore multifunctional chiral ferroelectrics.
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Affiliation(s)
- Lin-Sui Li
- Engineering Research Institute, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Yu-Hui Tan
- Engineering Research Institute, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Wen-Juan Wei
- Engineering Research Institute, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Hong-Qiang Gao
- Engineering Research Institute, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Yun-Zhi Tang
- Engineering Research Institute, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Xiao-Bo Han
- Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, Wuhan 430205, China
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23
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Liu HY, Zhang HY, Chen XG, Xiong RG. Molecular Design Principles for Ferroelectrics: Ferroelectrochemistry. J Am Chem Soc 2020; 142:15205-15218. [DOI: 10.1021/jacs.0c07055] [Citation(s) in RCA: 148] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Hui-Yu Liu
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People’s Republic of China
| | - Han-Yue Zhang
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People’s Republic of China
| | - Xiao-Gang Chen
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People’s Republic of China
| | - Ren-Gen Xiong
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People’s Republic of China
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