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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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Guo J, Zhang SY, Zeng CH, Zhou ZG, Xie M, Du ZY, He CT, Zhang WX, Chen XM. Temperature-Tuned Variable Confined Space for Modulating Dipolar Polarization of a Disc-Shaped Ammonium Ion. J Phys Chem Lett 2023; 14:8009-8015. [PMID: 37651131 DOI: 10.1021/acs.jpclett.3c01961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Free accessible confined space and loose interaction are crucial for most solid-state ionic motions. Here, by using a near-spherical anion and a disc-shaped ammonium as two distinct but rigid building blocks, we report a new ionic crystal, (HMIm)3[La(NO3)6] (HMIm = 1-methyl-1H-imidazol-3-ium), in which the different confined spaces of three (HMIm)+ ions are fine-tuned over a broad temperature range. This effect can be utilized to modulate the dipolar polarization across a wide temperature/frequency range. Additionally, small-scale substitution of (HMIm)+ by its isomer of almost identical shape/size affords molecular solid solutions, which can further tune the dipolar polarization by varying the doping ratio. It is revealed that the differences in dipole moment and hydrogen bond rather than that of shape/size lead to a distorted crystalline environment for these solid solutions. Overall, we provide an exceptional model for understanding and regulating the dipole motion of polar aromatic molecules/ions in a crystalline environment.
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Affiliation(s)
- Jing Guo
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Shi-Yong Zhang
- College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, Jiangxi 341000, China
| | - Cheng-Hui Zeng
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Zhong-Gao Zhou
- College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, Jiangxi 341000, China
| | - Miao Xie
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Zi-Yi Du
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Chun-Ting He
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Wei-Xiong Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, Guangdong 510275, China
| | - Xiao-Ming Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, Guangdong 510275, China
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Liu JC, Ai Y, Liu Q, Zeng YP, Chen XG, Lv HP, Xiong RG, Liao WQ. Solid-Liquid Crystal Biphasic Ferroelectrics with Tunable Biferroelectricity. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302436. [PMID: 37202898 DOI: 10.1002/adma.202302436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/27/2023] [Indexed: 05/20/2023]
Abstract
Ferroelectricity has been separately found in numerous solid and liquid crystal materials since its first discovery in 1920. However, a single material with biferroelectricity existing in both solid and liquid crystal phases is very rare, and the regulation of biferroelectricity has never been studied. Here, solid-liquid crystal biphasic ferroelectrics, cholestanyl 4-X-benzoate (4X-CB, X = Cl, Br, and I), which exhibits biferroelectricity in both the solid and liquid crystal phases, is presented. It is noted that the ferroelectric liquid crystal phase of 4X-CB is a cholesteric one, distinct from the ordinary chiral smectic ferroelectric liquid crystal phase. Moreover, 4X-CB shows solid-solid and solid-liquid crystal phase transitions, of which the transition temperatures gradually increase from Cl to Br to I substitution. The spontaneous polarization (Ps ) of 4X-CB in both solid and liquid crystal phases can also be regulated by different halogen substitutions, where the 4Br-CB has the optimal Ps because of the larger molecular dipole moment. To the authors' knowledge, 4X-CB is the first ferroelectric with tunable biferroelectricity, which offers a feasible case for the performance optimization of solid-liquid crystal biphasic ferroelectrics.
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Affiliation(s)
- Jun-Chao Liu
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Yong Ai
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Qin Liu
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Yi-Piao Zeng
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Xiao-Gang Chen
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Hui-Peng Lv
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Ren-Gen Xiong
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Wei-Qiang Liao
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
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Wang C, Gu J, Li J, Cai J, Li L, Yao J, Lu Z, Wang X, Zou G. Two-dimensional (n = 1) ferroelectric film solar cells. Natl Sci Rev 2023; 10:nwad061. [PMID: 37600562 PMCID: PMC10434298 DOI: 10.1093/nsr/nwad061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 02/23/2023] [Accepted: 02/27/2023] [Indexed: 08/22/2023] Open
Abstract
Molecular ferroelectrics that have excellent ferroelectric properties, a low processing temperature, narrow bandgap, and which are lightweight, have shown great potential in the photovoltaic field. However, two-dimensional (2D) perovskite solar cells with high tunability, excellent photo-physical properties and superior long-term stability are limited by poor out-of-plane conductivity from intrinsic multi-quantum-well electronic structures. This work uses 2D molecular ferroelectric film as the absorbing layer to break the limit of multiple quantum wells. Our 2D ferroelectric solar cells achieve the highest open-circuit voltage (1.29 V) and the best efficiency (3.71%) among the 2D (n = 1) Ruddlesden-Popper perovskite solar cells due to the enhanced out-of-plane charge transport induced by molecular ferroelectrics with a strong saturation polarization, high Curie temperature and multiaxial characteristics. This work aims to break the inefficient out-of-plane charge transport caused by the limit of the multi-quantum-well electronic structure and improve the efficiency of 2D ferroelectric solar cells.
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Affiliation(s)
- Chen Wang
- College of Energy, Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215000, China
- College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Jiahao Gu
- College of Energy, Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215000, China
| | - Jun Li
- College of Energy, Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215000, China
| | - Jianyu Cai
- College of Energy, Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215000, China
| | - Lutao Li
- College of Energy, Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215000, China
| | - Junjie Yao
- College of Energy, Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215000, China
| | - Zheng Lu
- College of Energy, Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215000, China
| | - Xiaohan Wang
- College of Energy, Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215000, China
| | - Guifu Zou
- College of Energy, Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215000, China
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Zhang HY, Zhang N, Zhang Y, Jiang HH, Zeng YL, Tang SY, Li PF, Tang YY, Xiong RG. Ferroelectric Phase Transition Driven by Switchable Covalent Bonds. PHYSICAL REVIEW LETTERS 2023; 130:176802. [PMID: 37172248 DOI: 10.1103/physrevlett.130.176802] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 04/05/2023] [Indexed: 05/14/2023]
Abstract
The mechanism on ferroelectric phase transitions is mainly attributed to the displacive and/or order-disorder transition of internal components since the discovery of the ferroelectricity in 1920, rather than the breaking and recombination of chemical bonds. Here, we demonstrate how to utilize the chemical bond rearrangement in a diarylethene-based crystal to realize the light-driven mm2F1-type ferroelectric phase transition. Such a photoinduced phase transition is entirely driven by switchable covalent bonds with breaking and reformation, enabling the reversible light-controllable ferroelectric polarization switching, dielectric and nonlinear optical bistability. Moreover, light as quantized energy can achieve contactless, nondestructive, and remote-control operations. This work proposes a new mechanism of ferroelectric phase transition, and highlights the significance of photochromic molecules in designing new ferroelectrics for photocontrol data storage and sensing.
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Affiliation(s)
- Han-Yue Zhang
- Jiangsu Key Laboratory for Biomaterials and Devices, State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Nan Zhang
- Jiangsu Key Laboratory for Biomaterials and Devices, State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Yao Zhang
- Jiangsu Key Laboratory for Biomaterials and Devices, State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Huan-Huan Jiang
- Jiangsu Key Laboratory for Biomaterials and Devices, State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, People's Republic of China
| | - Yu-Ling Zeng
- 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
| | - 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
| | - Ren-Gen Xiong
- Jiangsu Key Laboratory for Biomaterials and Devices, State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, People's Republic of China
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Ji HR, Zhou RJ, Yao J, Cao XX, Jing ZY, Pan Q, Feng ZJ, Gu ZX, You YM. Giant electrocaloric effect in a molecular ceramic. MATERIALS HORIZONS 2023; 10:869-874. [PMID: 36628648 DOI: 10.1039/d2mh01296k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The electrocaloric effect (ECE) is an efficient and environmentally friendly method for solid-state refrigeration driven by an electric field. However, disregarding the ECE performance, the mass of materials also limits the amount of energy transferred in the cooling process. While molecular ECE materials have been attracting intensive attention with their excellent ECE properties, most reported molecular compounds can only be utilized in the form of thin films or single crystals. Unlike inorganic ceramics, molecular thin films and single crystals are very difficult to prepare in a large amount, which greatly restrains the future application of those materials. In this work, we report an excellent molecular ECE material in the form of polycrystalline molecular ceramics. Such molecular ceramics are composed of plastic molecular ferroelectrics, and can fulfil the requirement of large mass, easy processing, excellent performance and low energy consumption. Our molecular ceramic of HQReO4 (HQ: protonated quinuclidine) demonstrates an isothermal entropy change of 5.8 J K-1 kg-1 and an adiabatic temperature change of 3.1 K. Notably, by a simple low-temperature pressing process without added adhesives (about 373 K), an HQReO4 molecular ceramic block can be obtained, and its ECE performance is observed to be comparable to that of single crystals, for the first time. This work proposes a new application form for molecular electrocaloric materials, which opens up new ideas for solid-state refrigeration.
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Affiliation(s)
- Hao-Ran Ji
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China.
| | - Ru-Jie Zhou
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China.
| | - Jie Yao
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China.
| | - Xiao-Xing Cao
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China.
| | - Zheng-Yin Jing
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China.
| | - Qiang Pan
- 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.
| | - Zhu-Xiao Gu
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China.
- Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, P. R. China
| | - Yu-Meng You
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China.
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Xu M, Sheng C, Zhang Q, Zhou X, Tian B, Chen L, Cai Y, Li J, Wang J, Xie Y, Qiu X, Wang W, Xiong S, Cong C, Qiu ZJ, Liu R, Hu L. Large-Area Flexible Memory Arrays of Oriented Molecular Ferroelectric Single Crystals with Nearly Saturated Polarization. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203882. [PMID: 36168115 DOI: 10.1002/smll.202203882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/23/2022] [Indexed: 06/16/2023]
Abstract
Molecular ferroelectrics (MFs) have been proven to demonstrate excellent properties even comparable to those of inorganic counterparts usually with heavy metals. However, the validation of their device applications is still at the infant stage. The polycrystalline feature of conventionally obtained MF films, the patterning challenges for microelectronics and the brittleness of crystalline films significantly hinder their development for organic integrated circuits, as well as emerging flexible electronics. Here, a large-area flexible memory array is demonstrated of oriented molecular ferroelectric single crystals (MFSCs) with nearly saturated polarization. Highly-uniform MFSC arrays are prepared on large-scale substrates including Si wafers and flexible substrates using an asymmetric-wetting and microgroove-assisted coating (AWMAC) strategy. Resultant flexible memory arrays exhibit excellent nonvolatile memory properties with a low-operating voltage of <5 V, i.e., nearly saturated ferroelectric polarization (6.5 µC cm-2 ), and long bending endurance (>103 ) under various bending radii. These results may open an avenue for scalable flexible MF electronics with high performance.
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Affiliation(s)
- Mingsheng Xu
- School of Information Science and Technology, Fudan University, Shanghai, 200433, P. R. China
| | - Chenxu Sheng
- School of Information Science and Technology, Fudan University, Shanghai, 200433, P. R. China
| | - Qiuyi Zhang
- School of Information Science and Technology, Fudan University, Shanghai, 200433, P. R. China
| | - Xiaojie Zhou
- School of Information Science and Technology, Fudan University, Shanghai, 200433, P. R. China
| | - Bobo Tian
- Key Laboratory of Polar Materials and Devices (MOE), Department of Electronics, East China Normal University, Shanghai, 200241, China
| | - Luqiu Chen
- Key Laboratory of Polar Materials and Devices (MOE), Department of Electronics, East China Normal University, Shanghai, 200241, China
| | - Yichen Cai
- School of Information Science and Technology, Fudan University, Shanghai, 200433, P. R. China
| | - Jianping Li
- School of Information Science and Technology, Fudan University, Shanghai, 200433, P. R. China
| | - Jiao Wang
- School of Information Science and Technology, Fudan University, Shanghai, 200433, P. R. China
| | - Yongfa Xie
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, P. R. China
| | - Xinxia Qiu
- School of Information Science and Technology, Fudan University, Shanghai, 200433, P. R. China
| | - Wenchong Wang
- Physikalisches Institut and Center for Nanotechnology, Universität Münster, Wilhelm-Klemm-Straße 10, 48149, Münster, Germany
| | - Shisheng Xiong
- School of Information Science and Technology, Fudan University, Shanghai, 200433, P. R. China
| | - Chunxiao Cong
- School of Information Science and Technology, Fudan University, Shanghai, 200433, P. R. China
- Yiwu Research Institute of Fudan University, Yiwu City, Zhejiang, 322000, China
| | - Zhi-Jun Qiu
- School of Information Science and Technology, Fudan University, Shanghai, 200433, P. R. China
| | - Ran Liu
- School of Information Science and Technology, Fudan University, Shanghai, 200433, P. R. China
| | - Laigui Hu
- School of Information Science and Technology, Fudan University, Shanghai, 200433, P. R. China
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8
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Hu ZB, Wang CF, Sha TT, Shi C, Ye L, Ye HY, Song Y, You YM, Zhang Y. An Effective Strategy of Introducing Chirality to Achieve Multifunctionality in Rare-Earth Double Perovskite Ferroelectrics. SMALL METHODS 2022; 6:e2200421. [PMID: 35790109 DOI: 10.1002/smtd.202200421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 05/23/2022] [Indexed: 06/15/2023]
Abstract
The hybrid rare-earth double perovskite (HREDP) system provides great convenience for the construction of multifunctional materials. However, suffering from the high symmetry of their intrinsic structure, HREDPs face the challenges in the realization and optimization of ferroelectric and piezoelectric properties. For the first time, after a systematic investigation of the chirality transformation principle, it is found that the introduction of chirality is an efficient strategy for the targeted construction of multifunctionality, which simultaneously increases the possibility of obtaining multiaxial ferroelectricity and ferroelasticity, and effectively realizes a large piezoelectric response. Moreover, chirality induced ferroelasticity will also achieve excellent magnetic or optical response driven by pressure-sensitive. To verify the feasibility of the above ideas, by using rare-earth ions (Ce3+ ) and suitable chiral organic cations, a new HREDP, (R-N-methyl-3-hydroxylquinuclidinium)2 RbCe(NO3 )6 (R1) is successfully designed, in which ferroelasticity, multiaxial ferroelectricity, satisfactory piezoelectric response, and the pressure-driven single-ion magnetics switch are simultaneously achieved for the first time. This work shows that the induction of chirality and the HREDP system provide an effective strategy and ideal platform for the expansion and optimization of the functions in perovskite ferroelectrics.
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Affiliation(s)
- Zhao-Bo Hu
- Chaotic Matter Science Research Center, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Chang-Feng Wang
- Chaotic Matter Science Research Center, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Tai-Ting Sha
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China
| | - Chao Shi
- Chaotic Matter Science Research Center, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Le Ye
- Chaotic Matter Science Research Center, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Heng-Yun Ye
- Chaotic Matter Science Research Center, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - You Song
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Yu-Meng You
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China
| | - Yi Zhang
- Chaotic Matter Science Research Center, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China
- 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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9
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Wang ZX, Chen XG, Song XJ, Zeng YL, Li PF, Tang YY, Liao WQ, Xiong RG. Domain memory effect in the organic ferroics. Nat Commun 2022; 13:2379. [PMID: 35501335 PMCID: PMC9061795 DOI: 10.1038/s41467-022-30085-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 04/15/2022] [Indexed: 11/09/2022] Open
Abstract
Shape memory alloys have been used extensively in actuators, couplings, medical guide wires, and smart devices, because of their unique shape memory effect and superelasticity triggered by the reversible martensitic phase transformations. For ferroic materials, however, almost no memory effects have been found for their ferroic domains after reversible phase transformations. Here, we present a pair of single-component organic enantiomorphic ferroelectric/ferroelastic crystals, (R)- and (S)-N-3,5-di-tert-butylsalicylidene-1-(1-naphthyl)ethylamine SA-NPh-(R) and SA-NPh-(S). It is notable that not only can their ferroic domain patterns disappear and reappear during reversible thermodynamic phase transformations, but they can also disappear and reappear during reversible light-driven phase transformations induced by enol-keto photoisomerization, both of which are from P1 to P21 polar space groups. Most importantly, the domain patterns are exactly the same in the initial and final states, demonstrating the existence of a memory effect for the ferroic domains in SA-NPh-(R) and SA-NPh-(S). As far as we are aware, the domain memory effect triggered by both thermodynamic and light-driven ferroelectric/ferroelastic phase transformations remains unexplored in ferroic materials. Thermal and optical control of domain memory effect would open up a fresh research field for smart ferroic materials.
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Affiliation(s)
- Zhong-Xia Wang
- College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, 341000, People's Republic of China.
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, People's Republic of China.
| | - Xiao-Gang Chen
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, People's Republic of China
| | - Xian-Jiang Song
- 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
| | - Wei-Qiang Liao
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, People's Republic of China
| | - Ren-Gen Xiong
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, People's Republic of China.
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10
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Ai Y, Li PF, Yang MJ, Xu YQ, Li MZ, Xiong RG. An organic plastic ferroelectric with high Curie point. Chem Sci 2022; 13:748-753. [PMID: 35173939 PMCID: PMC8768881 DOI: 10.1039/d1sc06781h] [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: 12/05/2021] [Accepted: 12/16/2021] [Indexed: 01/24/2023] Open
Abstract
Plastic ferroelectrics, featuring large entropy changes in phase transitions, hold great potential application for solid-state refrigeration due to the electrocaloric effect. Although conventional ceramic ferroelectrics (e.g., BaTiO3 and KNbO3) have been widely investigated in the fields of electrocaloric material and catalysis, organic plastic ferroelectrics with a high Curie point (T c) are rarely reported but are of great importance for the sake of environmental protection. Here, we reported an organic plastic ferroelectric, (-)-camphanic acid, which crystallizes in the P21 space group, chiral polar 2 (C2) point group, at room temperature. It undergoes plastic paraelectric-to-ferroelectric phase transition with the Aizu notation of 23F2 and high T c of 414 K, showing large entropy gain (ΔS t = 48.2 J K-1 mol-1). More importantly, the rectangular polarization-electric field (P-E) hysteresis loop was recorded on the thin film samples with a large saturated polarization (P s) of 5.2 μC cm-2. The plastic phase transition is responsible for its multiaxial ferroelectric feature. This work highlights the discovery of organic multiaxial ferroelectrics driven by the motive of combining chirality and plastic phase transition, which will extensively promote the practical application of such unique functional materials.
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Affiliation(s)
- Yong Ai
- Ordered Matter Science Research Center, Nanchang University Nanchang 330031 P. R. China
| | - Peng-Fei Li
- Ordered Matter Science Research Center, Nanchang University Nanchang 330031 P. R. China
| | - Meng-Juan Yang
- Ordered Matter Science Research Center, Nanchang University Nanchang 330031 P. R. China
| | - Yu-Qiu Xu
- Ordered Matter Science Research Center, Nanchang University Nanchang 330031 P. R. China
| | - Meng-Zhen Li
- Ordered Matter Science Research Center, Nanchang University Nanchang 330031 P. R. China
| | - Ren-Gen Xiong
- Ordered Matter Science Research Center, Nanchang University Nanchang 330031 P. R. China
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11
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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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12
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Cheng SN, Ding K, Zhang T, Zhang ZX, Su CY, Ge JZ, Zhang Y, Fu DW. In Situ Observation of Ferroelastic Domain and Phase Transition in a Three-Dimensional Molecular Crystal. Chemistry 2021; 27:17655-17659. [PMID: 34661945 DOI: 10.1002/chem.202103229] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Indexed: 11/08/2022]
Abstract
Massive efforts have been devoted to designing molecular ferroic materials by molecular modification. For molecular ferroelastic, previous work is focused on the temperature-dependent ferroelastic domains, however, few are related to controlling the ferroelastic domain by the stress. Inspired by the "quasi-spherical theory" and fluorination effect, we designed a more flexible (MedabcoF)2+ (MedabcoF=1-fluoro-4-methyl-1,4-diazoniabicyclo[2.2.2]octane) cation by introducing a methyl group and a fluorine atom at the two symmetrical ends of the Dabco (1,4-diazoniabicyclo[2.2.2]octane) and synthesized a hybrid 3D perovskite (MedabcoF)Rb(BF4 )3 (1) which displays three reversible phase transitions accompanying dual ferroelastic behavior. Besides, it not only exhibits ferroelastic domains switching by the thermal stimulation, and the sensitive reaction of in situ domains under the stress of it is also realized. This work not only achieves a force-controlled ferroelastic domain but develops a more profound comprehension of the relationship between the thermal motion behavior of guest cations and the intriguing properties of materials.
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Affiliation(s)
- Sai-Nan Cheng
- Ordered Matter Science Research Center Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China
| | - Kun Ding
- Ordered Matter Science Research Center Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China
| | - Tie Zhang
- Ordered Matter Science Research Center Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China
| | - Zhi-Xu Zhang
- Ordered Matter Science Research Center Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China
| | - Chang-Yuan Su
- Ordered Matter Science Research Center Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China
| | - Jia-Zhen Ge
- Ordered Matter Science Research Center Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China
| | - Yi Zhang
- Ordered Matter Science Research Center Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China
| | - Da-Wei Fu
- Ordered Matter Science Research Center Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China
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13
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Zhang HY, Chen XG, Tang YY, Liao WQ, Di FF, Mu X, Peng H, Xiong RG. PFM (piezoresponse force microscopy)-aided design for molecular ferroelectrics. Chem Soc Rev 2021; 50:8248-8278. [PMID: 34081064 DOI: 10.1039/c9cs00504h] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With prosperity, decay, and another spring, molecular ferroelectrics have passed a hundred years since Valasek first discovered ferroelectricity in the molecular compound Rochelle salt. Recently, the proposal of ferroelectrochemistry has injected new vigor into this century-old research field. It should be highlighted that piezoresponse force microscopy (PFM) technique, as a non-destructive imaging and manipulation method for ferroelectric domains at the nanoscale, can significantly speed up the design rate of molecular ferroelectrics as well as enhance the ferroelectric and piezoelectric performances relying on domain engineering. Herein, we provide a brief review of the contribution of the PFM technique toward assisting the design and performance optimization of molecular ferroelectrics. Relying on the relationship between ferroelectric domains and crystallography, together with other physical characteristics such as domain switching and piezoelectricity, we believe that the PFM technique can be effectively applied to assist the design of high-performance molecular ferroelectrics equipped with multifunctionality, and thereby facilitate their practical utilization in optics, electronics, magnetics, thermotics, and mechanics among others.
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Affiliation(s)
- Han-Yue Zhang
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, P. R. China.
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14
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Lee J, Seol W, Anoop G, Samanta S, Unithrattil S, Ahn D, Kim W, Jung G, Jo J. Stabilization of Ferroelectric Phase in Highly Oriented Quinuclidinium Perrhenate (HQReO 4) Thin Films. MATERIALS 2021; 14:ma14092126. [PMID: 33922179 PMCID: PMC8122725 DOI: 10.3390/ma14092126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 04/16/2021] [Accepted: 04/19/2021] [Indexed: 11/16/2022]
Abstract
The low-temperature processability of molecular ferroelectric (FE) crystals makes them a potential alternative for perovskite oxide-based ferroelectric thin films. Quinuclidinium perrhenate (HQReO4) is one such molecular FE crystal that exhibits ferroelectricity when crystallized in an intermediate temperature phase (ITP). However, bulk HQReO4 crystals exhibit ferroelectricity only for a narrow temperature window (22 K), above and below which the polar phase transforms to a non-FE phase. The FE phase or ITP of HQReO4 should be stabilized in a much wider temperature range for practical applications. Here, to stabilize the FE phase (ITP) in a wider temperature range, highly oriented thin films of HQReO4 were prepared using a simple solution process. A slow evaporation method was adapted for drying the HQReO4 thin films to control the morphology and the temperature window. The temperature window of the intermediate temperature FE phase was successfully widened up to 35 K by merely varying the film drying temperature between 333 and 353 K. The strategy of stabilizing the FE phase in a wider temperature range can be adapted to other molecular FE materials to realize flexible electronic devices.
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Affiliation(s)
- Junyoung Lee
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
| | - Woojun Seol
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
| | - Gopinathan Anoop
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
| | - Shibnath Samanta
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
| | - Sanjith Unithrattil
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
| | - Dante Ahn
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
| | - Woochul Kim
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
| | - Gunyoung Jung
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
| | - Jiyoung Jo
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
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15
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Tang YY, Xie Y, Ai Y, Liao WQ, Li PF, Nakamura T, Xiong RG. Organic Ferroelectric Vortex-Antivortex Domain Structure. J Am Chem Soc 2020; 142:21932-21937. [PMID: 33326208 DOI: 10.1021/jacs.0c11416] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Organic ferroelectrics are attracting tremendous interest because of their mechanical flexibility, ease of fabrication, and low acoustical impedance. Although great advances have been made in recent years, topological defects such as vortices remain relatively unexplored in the organic ferroelectric system. Here, from [quinuclidinium]ReO4 ([Q]ReO4), we applied the molecular design strategy of H/F substitution to successfully synthesize the organic ferroelectric [4-fluoroquinuclidinium]ReO4 ([4-F-Q]ReO4). Through H/F substitution, the Curie temperature and spontaneous polarization are respectively increased from 367 K and 5.83 μC/cm2 in [Q]ReO4 to 466 K and 11.37 μC/cm2 in [4-F-Q]ReO4. Moreover, under mechanical stress fields, three kinds of stripelike domains with various polarization directions emerge to form a windmill-like domain pattern in the thin film of [4-F-Q]ReO4, in which intriguing vortex-antivortex topological configurations can exist stably. This work provides an efficient strategy for optimizing the properties of organic ferroelectrics and exploring emergent phenomena.
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Affiliation(s)
- Yuan-Yuan Tang
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China
| | - Yongfa Xie
- 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
| | - Wei-Qiang Liao
- 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
| | - Takayoshi Nakamura
- Research Institute for Electronic Science, Hokkaido University, Kitaku, Sapporo, Hokkaido 001-0020, Japan
| | - Ren-Gen Xiong
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China
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16
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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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17
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Xie Y, Ai Y, Zeng YL, He WH, Huang XQ, Fu DW, Gao JX, Chen XG, Tang YY. The Soft Molecular Polycrystalline Ferroelectric Realized by the Fluorination Effect. J Am Chem Soc 2020; 142:12486-12492. [DOI: 10.1021/jacs.0c05372] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yongfa Xie
- 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
| | - Yu-Ling Zeng
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
| | - Wen-Hui He
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
| | - Xue-Qin Huang
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
| | - 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, People’s Republic of 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, People’s Republic of China
| | - Xiao-Gang Chen
- Institute for Science and Applications of Molecular Ferroelectrics, Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, People’s Republic of China
| | - Yuan-Yuan Tang
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
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18
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Deng S, Li J, Chen X, Hou Y, Chen L. A novel ferroelectric based on quinuclidine derivatives. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.11.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Song XJ, Zhang ZX, Chen XG, Zhang HY, Pan Q, Yao J, You YM, Xiong RG. Bistable State of Protons for Low-Voltage Memories. J Am Chem Soc 2020; 142:9000-9006. [DOI: 10.1021/jacs.0c02924] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xian-Jiang Song
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People’s Republic of China
| | - Zhi-Xu 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
| | - Han-Yue Zhang
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People’s Republic of China
| | - Qiang Pan
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People’s Republic of China
| | - Jie Yao
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People’s Republic of China
| | - Yu-Meng You
- 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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20
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Zhao XM, Li D, Zhao HX, Ren YP, Long LS, Zheng LS. Polar Molecule-Based Material with Optic–Electric Switching Constructed by Polar Anions. Inorg Chem 2020; 59:5475-5482. [DOI: 10.1021/acs.inorgchem.0c00096] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xue-Mei Zhao
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Dong Li
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Hai-Xia Zhao
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Yan-Ping Ren
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - La-Sheng Long
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Lan-Sun Zheng
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
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21
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Fu H, Jiang C, Lao J, Luo C, Lin H, Peng H, Duan CG. An organic–inorganic hybrid ferroelectric with strong luminescence and high Curie temperature. CrystEngComm 2020. [DOI: 10.1039/c9ce01888c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A luminescent organic–inorganic ferroelectric, with a high Curie temperature (421 K), a high PL QY (88.52%) and excellent film forming ability, can be regarded as a very interesting multifunctional material for fabricating new optoelectronic devices.
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Affiliation(s)
- Hanmei Fu
- Key Laboratory of Polar Materials and Devices (MOE)
- Department of Electronics
- School of Physics and Electronic Science
- East China Normal University
- Shanghai
| | - Chunli Jiang
- Key Laboratory of Polar Materials and Devices (MOE)
- Department of Electronics
- School of Physics and Electronic Science
- East China Normal University
- Shanghai
| | - Jie Lao
- Key Laboratory of Polar Materials and Devices (MOE)
- Department of Electronics
- School of Physics and Electronic Science
- East China Normal University
- Shanghai
| | - Chunhua Luo
- Key Laboratory of Polar Materials and Devices (MOE)
- Department of Electronics
- School of Physics and Electronic Science
- East China Normal University
- Shanghai
| | - Hechun Lin
- Key Laboratory of Polar Materials and Devices (MOE)
- Department of Electronics
- School of Physics and Electronic Science
- East China Normal University
- Shanghai
| | - Hui Peng
- Key Laboratory of Polar Materials and Devices (MOE)
- Department of Electronics
- School of Physics and Electronic Science
- East China Normal University
- Shanghai
| | - Chun-Gang Duan
- Key Laboratory of Polar Materials and Devices (MOE)
- Department of Electronics
- School of Physics and Electronic Science
- East China Normal University
- Shanghai
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22
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Shi PP, Lu SQ, Song XJ, Chen XG, Liao WQ, Li PF, Tang YY, Xiong RG. Two-Dimensional Organic–Inorganic Perovskite Ferroelectric Semiconductors with Fluorinated Aromatic Spacers. J Am Chem Soc 2019; 141:18334-18340. [DOI: 10.1021/jacs.9b10048] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Ping-Ping Shi
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People’s Republic of China
| | - Si-Qi Lu
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People’s Republic of China
| | - Xian-Jiang Song
- 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
| | - Wei-Qiang Liao
- 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
| | - Ren-Gen Xiong
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People’s Republic of China
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
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23
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Tang YY, Ai Y, Liao WQ, Li PF, Wang ZX, Xiong RG. H/F-Substitution-Induced Homochirality for Designing High-T c Molecular Perovskite Ferroelectrics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1902163. [PMID: 31155759 DOI: 10.1002/adma.201902163] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 05/09/2019] [Indexed: 06/09/2023]
Abstract
A ferroelectric with a high phase-transition temperature (Tc ) is an indispensable condition for practical applications. Over the past decades, both strain engineering and the isotope effect have been found to effectively improve the Tc within ferroelectric material systems. However, the former strategy seems to prefer working in inorganic ferroelectric thin films, while the latter is also limited to some certain systems, such as hydrogen-bonded ferroelectrics. It is noted that a mono-fluorinated molecule is geometrically very similar to its parent molecule and the substitution of H by an F atom can introduce a chiral center on the molecule to template or stabilize polar structures. Significantly, the barrier of rotation of the fluorinated organic molecules is raised, resulting in a remarkable increase in Tc . Herein, by applying the molecular design strategy of H/F substitution to the organic-inorganic perovskite ferroelectric (pyrrolidinium)CdCl3 with a low Tc of 240 K, two high-Tc chiral perovskite ferroelectrics, (R)- and (S)-3-F-(pyrrolidinium)CdCl3 are successfully synthesized, for which the Tc reaches 303 K. The significant enhancement of 63 K in Tc extends the ferroelectric working temperature range to room temperature. This finding provides a new effective way to regulate the Tc in ferroelectrics and to design high-Tc molecular ferroelectrics.
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Affiliation(s)
- Yuan-Yuan Tang
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Yong Ai
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Wei-Qiang Liao
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Peng-Fei Li
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Zhong-Xia Wang
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
| | - Ren-Gen Xiong
- Ordered Matter Science Research Center, Nanchang University, Nanchang, 330031, P. R. China
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24
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Harada J, Kawamura Y, Takahashi Y, Uemura Y, Hasegawa T, Taniguchi H, Maruyama K. Plastic/Ferroelectric Crystals with Easily Switchable Polarization: Low-Voltage Operation, Unprecedentedly High Pyroelectric Performance, and Large Piezoelectric Effect in Polycrystalline Forms. J Am Chem Soc 2019; 141:9349-9357. [PMID: 31184147 DOI: 10.1021/jacs.9b03369] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Molecular ferroelectric crystals have attracted growing interest as potential alternatives to conventional lead-based ceramic ferroelectrics. We have recently discovered that a class of compounds known as plastic crystals can show multiaxial ferroelectricity, which allows ferroelectric performance even in polycrystalline forms. Here, we report new plastic/ferroelectric ionic molecular crystals that exhibit remarkably small coercive electric fields at room temperature. The easily switchable ferroelectric polarization enables low-voltage switching operations and high-frequency performance. Such ferroelectric crystals can be readily processed into bulk polycrystalline forms with desired shapes that are characterized by unprecedentedly high pyroelectric figures of merit and large piezoelectricity. These multifunctional molecular crystals represent highly attractive prospects for device elements with a diverse range of applications, which will significantly boost the development of molecular ferroelectric crystals.
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Affiliation(s)
| | | | | | - Yohei Uemura
- Department of Applied Physics , The University of Tokyo , Tokyo 113-8656 , Japan
| | - Tatsuo Hasegawa
- Department of Applied Physics , The University of Tokyo , Tokyo 113-8656 , Japan
| | - Hiroki Taniguchi
- Department of Physics , Nagoya University , Nagoya 464-8602 , Japan
| | - Koji Maruyama
- Department of Physics , Nagoya University , Nagoya 464-8602 , Japan
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25
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Crystal structure, phase transitions, optical and electrical properties in a new Cu-halide organic-inorganic hybrid. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.03.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Xiong YA, Sha TT, Pan Q, Song XJ, Miao SR, Jing ZY, Feng ZJ, You YM, Xiong RG. A Nickel(II) Nitrite Based Molecular Perovskite Ferroelectric. Angew Chem Int Ed Engl 2019; 58:8857-8861. [PMID: 31050113 DOI: 10.1002/anie.201904305] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 04/30/2019] [Indexed: 01/17/2023]
Abstract
The X-site ion in organic-inorganic hybrid ABX3 perovskites (OHPs) varies from halide ion to bridging linkers like HCOO- , N3 - , NO2 - , and CN- . However, no nitrite-based OHP ferroelectrics have been reported so far. Now, based on non-ferroelectric [(CH3 )4 N][Ni(NO2 )3 ], through the combined methodologies of quasi-spherical shape, hydrogen bonding functionality, and H/F substitution, we have successfully synthesized an OHP ferroelectric, [FMeTP][Ni(NO2 )3 ] (FMeTP=N-fluoromethyl tropine). As an unprecedented nitrite-based OHP ferroelectric, the well-designed [FMeTP][Ni(NO2 )3 ] undergoes the ferroelectric phase transition at 400 K with an Aizu notation of 6/mmmFm, showing multiaxial ferroelectric characteristics. This work is a great step towards not only enriching the molecular ferroelectric families but also accelerating the potential practical applications.
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Affiliation(s)
- 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
| | - Qiang Pan
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China
| | - Xian-Jiang Song
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China
| | - Shu-Rong Miao
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China
| | - Zheng-Yin Jing
- 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-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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27
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Xiong Y, Sha T, Pan Q, Song X, Miao S, Jing Z, Feng Z, You Y, Xiong R. A Nickel(II) Nitrite Based Molecular Perovskite Ferroelectric. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904305] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yu‐An Xiong
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast University Nanjing 211189 P. R. China
| | - Tai‐Ting Sha
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast University Nanjing 211189 P. R. China
| | - Qiang Pan
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast University Nanjing 211189 P. R. China
| | - Xian‐Jiang Song
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast University Nanjing 211189 P. R. China
| | - Shu‐Rong Miao
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast University Nanjing 211189 P. R. China
| | - Zheng‐Yin Jing
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast University Nanjing 211189 P. R. China
| | - Zi‐Jie Feng
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast University Nanjing 211189 P. R. China
| | - Yu‐Meng You
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast University Nanjing 211189 P. R. China
| | - Ren‐Gen Xiong
- Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast University Nanjing 211189 P. R. China
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28
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Wang S, Liu X, Li L, Ji C, Sun Z, Wu Z, Hong M, Luo J. An Unprecedented Biaxial Trilayered Hybrid Perovskite Ferroelectric with Directionally Tunable Photovoltaic Effects. J Am Chem Soc 2019; 141:7693-7697. [DOI: 10.1021/jacs.9b02558] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Sasa Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xitao Liu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Lina Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Chengmin Ji
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Zhihua Sun
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Zhenyue Wu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Maochun Hong
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Junhua Luo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
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29
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30
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Yang CK, Chen WN, Ding YT, Wang J, Rao Y, Liao WQ, Xie Y, Zou W, Xiong RG. Directional Intermolecular Interactions for Precise Molecular Design of a High-Tc Multiaxial Molecular Ferroelectric. J Am Chem Soc 2019; 141:1781-1787. [DOI: 10.1021/jacs.8b13223] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chen-Kai Yang
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
| | - Wang-Nan Chen
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
| | - Yan-Ting Ding
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
| | - Jing Wang
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
| | - Yin Rao
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
| | - Wei-Qiang Liao
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
| | - Yongfa Xie
- College of Chemistry, Nanchang University, Nanchang 330031, People’s Republic of China
| | - Wennan Zou
- Institute for Advanced Study, Nanchang University, Nanchang 330031, People’s Republic of China
| | - Ren-Gen Xiong
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People’s Republic of China
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31
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Liu YL, Lu SQ, Tang YY, Chen XG, Gao JX, Li HJ, Xiong RG. Fluorination observed Tc increase of 110 K is challenging the hydrogen–deuterium isotope effect. Chem Commun (Camb) 2019; 55:10007-10010. [DOI: 10.1039/c9cc04658e] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The unprecedented Tc enhancement of 110 K observed with H/F substitution of [N-methyldabconium] triiodide lead is challenging the hydrogen–deuterium isotope effect.
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Affiliation(s)
- Yu-Ling Liu
- Ordered Matter Science Research Center
- Nanchang University
- Nanchang 330031
- People's Republic of China
| | - Si-Qi Lu
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing 211189
- People's Republic of China
| | - Yuan-Yuan Tang
- Ordered Matter Science Research Center
- Nanchang University
- Nanchang 330031
- 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
| | - Ji-Xing Gao
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- Southeast University
- Nanjing 211189
- People's Republic of China
| | - Hao-Jie Li
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
- 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
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics
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32
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Hua XN, Liao WQ, Tang YY, Li PF, Shi PP, Zhao D, Xiong RG. A Room-Temperature Hybrid Lead Iodide Perovskite Ferroelectric. J Am Chem Soc 2018; 140:12296-12302. [DOI: 10.1021/jacs.8b08286] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Xiu-Ni Hua
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, 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
| | - Yuan-Yuan Tang
- 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
| | - Ping-Ping Shi
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, People’s Republic of China
| | - Dewei Zhao
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, 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
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
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33
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Tang YY, Li PF, Liao WQ, Shi PP, You YM, Xiong RG. Multiaxial Molecular Ferroelectric Thin Films Bring Light to Practical Applications. J Am Chem Soc 2018; 140:8051-8059. [PMID: 29894637 DOI: 10.1021/jacs.8b04600] [Citation(s) in RCA: 116] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Though dominating most of the practical applications, inorganic ferroelectric thin films usually suffer from the high processing temperatures, the substrate limitation, and the complicated fabrication techniques that are high-cost, energy-intensive, and time-consuming. By contrast, molecular ferroelectrics offer more opportunities for the next-generation flexible and wearable devices due to their inherent flexibility, tunability, environmental-friendliness, and easy processability. However, most of the discovered molecular ferroelectrics are uniaxial, one major obstacle for improving the thin-film performance and expanding the application potential. In this Perspective, we overview the recent advances on multiaxial molecular ferroelectric thin films, which is a solution to this issue. We describe the strategies for screening multiaxial molecular ferroelectrics and characterizations of the thin films, and highlight their advantages and future applications. Upon rational and precise design as well as optimizing ferroelectric performance, the family of multiaxial molecular ferroelectric thin films surely will get booming in the near future and inject vigor into the century-old ferroelectric field.
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Affiliation(s)
- Yuan-Yuan Tang
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics , Southeast University , Nanjing 211189 , People's Republic of China
| | - Peng-Fei Li
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics , 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
| | - Ping-Ping Shi
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics , Southeast University , Nanjing 211189 , People's Republic of China
| | - Yu-Meng You
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics , 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.,Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics , Southeast University , Nanjing 211189 , People's Republic of China
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34
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Liao WQ, Tang YY, Li PF, You YM, Xiong RG. Competitive Halogen Bond in the Molecular Ferroelectric with Large Piezoelectric Response. J Am Chem Soc 2018; 140:3975-3980. [DOI: 10.1021/jacs.7b12524] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Wei-Qiang Liao
- Institute for Advanced Interdisciplinary Research, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, P.R. China
- Ordered Matter Science Research Center, and Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, P.R. China
| | - Yuan-Yuan Tang
- Ordered Matter Science Research Center, and Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, P.R. China
| | - Peng-Fei Li
- Ordered Matter Science Research Center, and Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, P.R. China
| | - Yu-Meng You
- Ordered Matter Science Research Center, and Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, P.R. China
| | - Ren-Gen Xiong
- Ordered Matter Science Research Center, and Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing 211189, P.R. China
- College of
Chemistry, Nanchang University, Nanchang 330031, P.R. China
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