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Zeitz S, Antoniuk H, Hlukhyy V, Fässler TF. Electronic Structure Analysis of the A 10Tt 2P 6 System (A=Li-Cs; Tt=Si, Ge, Sn) and Synthesis of the Direct Band Gap Semiconductor K 10Sn 2P 6. Chemistry 2024; 30:e202400002. [PMID: 38320961 DOI: 10.1002/chem.202400002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/08/2024]
Abstract
Investigating the relationship between atomic and electronic structures is a powerful tool to screen the wide variety of Zintl phases for interesting (opto-)electronic properties. To get an insight in such relations, the A10Tt2P6 system (A=Li-Cs; Tt=Si-Sn) was picked as model system to analyse the influence of structural motives, combination of elements and their properties on type and width of the band gaps. Those compounds comprise two interesting structural motives of their anions, which are either monomeric trigonal planar TtP3 5- units which are isostructural to CO3 2- or [Tt2P6]10- dimers which correspond to two edge-sharing TtP4 tetrahedra. The A10Tt2P6 compounds were structurally optimized for both polymorphs and subsequent frequency analysis, band structure as well as density of states calculations were performed. The Gibbs free energies were compared to determine temperature dependent stability, where Na10Si2P6, Na10Ge2P6 and K10Sn2P6 were found to be candidates for a high temperature phase transition between the two polymorphs. Additionally, the unknown, but predicted compound K10Sn2P6 was synthesized and characterized by single crystal and powder x-ray diffraction. It crystalizes in the monoclinic space group P 21/n and incorporates [Sn2P6]10- edge sharing double tetrahedra. It was determined to be a direct band gap semiconductor with a band gap of 2.57 eV.
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Affiliation(s)
- Sabine Zeitz
- School of Natural Science, Technical University of Munich, Chair of Inorganic Chemistry with Focus on Novel Materials, Lichtenbergstraße 4, D-85747, Garching, Germany
| | - Hanna Antoniuk
- School of Natural Science, Technical University of Munich, Chair of Inorganic Chemistry with Focus on Novel Materials, Lichtenbergstraße 4, D-85747, Garching, Germany
| | - Viktor Hlukhyy
- School of Natural Science, Technical University of Munich, Chair of Inorganic Chemistry with Focus on Novel Materials, Lichtenbergstraße 4, D-85747, Garching, Germany
| | - T F Fässler
- School of Natural Science, Technical University of Munich, Chair of Inorganic Chemistry with Focus on Novel Materials, Lichtenbergstraße 4, D-85747, Garching, Germany
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Zhang T, Ren M, Huang Y, Li F, Hua W, Indris S, Li F. Negative Lattice Expansion in an O3-Type Transition-Metal Oxide Cathode for Highly Stable Sodium-Ion Batteries. Angew Chem Int Ed Engl 2024; 63:e202316949. [PMID: 38169133 DOI: 10.1002/anie.202316949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/12/2023] [Accepted: 01/02/2024] [Indexed: 01/05/2024]
Abstract
The sodium extraction/insertion in layered transition-metal oxide (TMO) cathode materials are typically accompanied by slab sliding and lattice changes, leading to microstructure destruction and capacity decay. Herein, negative lattice expansion is observed in an O3 type Ni-based layered cathode of Na0.9 Ni0.32 Zn0.08 Fe0.1 Mn0.3 Ti0.2 O2 upon Na+ extraction. It is attributed to the weak Zn2+ -O2- orbital hybridization and increased electron density of the surrounding oxygen for reinforced interlayer O-O repulsive force. This enables gliding of TMO slabs for the intergrowth phase transition of P3→OP2 to alleviate lattice strain with moderate lattice shrinkage, which exhibits general interslab spacings and volume changes as low as 2.4 % and 1.9 %, respectively. The strong Ti-O bonds accommodate the internal distortion of TMO6 octahedra due to the flexibility of TiO6 octahedra during cycling. These endow a high specific capacity of 144.9 mAh g-1 and excellent cycling performance of pouch-type sodium-ion batteries with 93 % capacity retention after 3600 cycles.
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Affiliation(s)
- Tong Zhang
- Frontiers Science Center for New Organic Matter, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, 300071, Tianjin, China
| | - Meng Ren
- Frontiers Science Center for New Organic Matter, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, 300071, Tianjin, China
| | - Yaohui Huang
- Frontiers Science Center for New Organic Matter, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, 300071, Tianjin, China
| | - Fei Li
- Frontiers Science Center for New Organic Matter, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, 300071, Tianjin, China
| | - Weibo Hua
- Institute for Applied Materials (IAM), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, 710049, Xi'an, Shanxi, (China)
| | - Sylvio Indris
- Institute for Applied Materials (IAM), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Fujun Li
- Frontiers Science Center for New Organic Matter, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, 300071, Tianjin, China
- Haihe Laboratory of Sustainable Chemical Transformations, 300192, Tianjin, China
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Lun MM, Ni HF, Zhang ZX, Li JY, Jia QQ, Zhang Y, Zhang Y, Fu DW. Unusual Thermal Quenching of Photoluminescence from an Organic-Inorganic Hybrid [MnBr 4 ] 2- -based Halide Mediated by Crystalline-Crystalline Phase Transition. Angew Chem Int Ed Engl 2024; 63:e202313590. [PMID: 37814153 DOI: 10.1002/anie.202313590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/09/2023] [Accepted: 10/09/2023] [Indexed: 10/11/2023]
Abstract
The ability to generate and manipulate photoluminescence (PL) behavior has been of primary importance for applications in information security. Excavating novel optical effects to create more possibilities for information encoding has become a continuous challenge. Herein, we present an unprecedented PL temporary quenching that highly couples with thermodynamic phase transition in a hybrid crystal (DMML)2 MnBr4 (DMML=N,N-dimethylmorpholinium). Such unusual PL behavior originates from the anomalous variation of [MnBr4 ]2- tetrahedrons that leads to non-radiation recombination near the phase transition temperature of 340 K. Remarkably, the suitable detectable temperature, narrow response window, high sensitivity, and good cyclability of this PL temporary quenching will endow encryption applications with high concealment, operational flexibility, durability, and commercial popularization. Profited from these attributes, a fire-new optical encryption model is devised to demonstrate high confidential information security. This unprecedented optical effect would provide new insights and paradigms for the development of luminescent materials to enlighten future information encryption.
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Affiliation(s)
- Meng-Meng Lun
- Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China
| | - Hao-Fei Ni
- 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
| | - Zhi-Xu Zhang
- 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-Yi Li
- Ordered Matter Science Research Center, Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics, Southeast University, Nanjing, 211189, P. R. China
| | - Qiang-Qiang Jia
- 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
| | - Yi Zhang
- 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
| | - Yujian Zhang
- 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
| | - 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
- 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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Guo F, Chen Y, Song Y, Deng Y, Hua W, Yang W, Chen T, Wu Z, Qiu L, Guo X. Oxygen Vacancies Driven by Co in the Deeply Charged State Inducing Intragranular Cracking of Ni-Rich Cathodes. Small 2024:e2310321. [PMID: 38180291 DOI: 10.1002/smll.202310321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 12/05/2023] [Indexed: 01/06/2024]
Abstract
Intragranular cracking within the material structure of Ni-rich (LiNix Coy Mn1 - x - y , x ≥0.9) cathodes greatly threatens cathode integrity and causes capacity degradation, yet its atomic-scale incubation mechanism is not completely elucidated. Notably, the physicochemical properties of component elements fundamentally determine the material structure of cathodes. Herein, a diffusion-controlled incubation mechanism of intragranular cracking is unraveled, and an underlying correlation model with Co element is established. Multi-dimensional analysis reveals that oxygen vacancies appear due to the charge compensation from highly oxidizing Co ions in the deeply charged state, driving the transition metal migration to Li layer and layered to rock-salt phase transition. The local accumulation of two accompanying tensile strains collaborates to promote the nucleation and growth of intragranular cracks along the fragile rock-salt phase domain on (003) plane. This study focuses on the potential risks posed by Co to the architectural and thermal stability of Ni-rich cathodes and is dedicated to the compositional design and performance optimization of Ni-rich cathodes.
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Affiliation(s)
- Fuqiren Guo
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yaoqu Chen
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yang Song
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yuting Deng
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Weibo Hua
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Wen Yang
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Ting Chen
- Institute for Advanced Study, Chengdu University, Chengdu, 610106, P. R. China
| | - Zhenguo Wu
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Lang Qiu
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Xiaodong Guo
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
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5
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Avelar S Silva J, Militão Vasconcelos DL, Araújo de Lima R, Cordeiro AJP, Tarso C Freire P. Structural and vibrational analysis of glycyl-L-phenylalanine and phase transition under high-pressure. Spectrochim Acta A Mol Biomol Spectrosc 2024; 304:123383. [PMID: 37725884 DOI: 10.1016/j.saa.2023.123383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 09/03/2023] [Accepted: 09/08/2023] [Indexed: 09/21/2023]
Abstract
The structural and vibrational properties of the glycyl-L-phenylalanine dipeptide were investigated using vibrational spectroscopy (Raman and infrared) and first-principle calculations. Raman spectroscopy measurements were performed between 100 and 3200 cm-1 and infrared spectroscopy from 100 and 3200 cm-1 under ambient conditions. The conformational analysis of the zwitterionic form of the dipeptide was performed using the B3LYP functional, the 6-311++ base set and the Polarizable Continuum Model of solvation, determining the lowest energy conformation and assigning the vibrational modes. The effect of pressure on the glycyl-1-phenylalanine crystal was investigated using the Raman spectroscopy between 0.0 and -7.1 GPa in the spectral region of 100 - 3200 cm-1. As a result, conformational changes around 1.0 GPa were observed in the lattice modes and in some internal modes, showing a reorganization of the molecule in the crystal. In the decompression process, it was observed that the conformational change is reversible and the original Raman spectrum is recoverd.
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Affiliation(s)
- José Avelar S Silva
- Departamento de Física, Universidade Federal do Ceará, Caixa Postal 6030, 60021-970, Fortaleza, CE, Brazil.
| | - Daniel L Militão Vasconcelos
- Departamento de Física, Universidade Federal do Ceará, Caixa Postal 6030, 60021-970, Fortaleza, CE, Brazil; Faculdade de Educação Ciências e Letras do Sertão Central, Universidade Estadual do Ceará, CEP 63.902-098 Quixadá, CE, Brazil
| | - Raphaela Araújo de Lima
- Departamento de Física, Universidade Federal do Ceará, Caixa Postal 6030, 60021-970, Fortaleza, CE, Brazil
| | - Adrya J P Cordeiro
- Departamento de Física, Universidade Federal do Ceará, Caixa Postal 6030, 60021-970, Fortaleza, CE, Brazil
| | - Paulo Tarso C Freire
- Departamento de Física, Universidade Federal do Ceará, Caixa Postal 6030, 60021-970, Fortaleza, CE, Brazil.
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6
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Kosaka W, Hiwatashi Y, Amamizu N, Kitagawa Y, Zhang J, Miyasaka H. Densely Packed CO 2 Aids Charge, Spin, and Lattice Ordering Partially Fluctuated in a Porous Metal-Organic Framework Magnet. Angew Chem Int Ed Engl 2023; 62:e202312205. [PMID: 37840402 DOI: 10.1002/anie.202312205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/10/2023] [Accepted: 10/10/2023] [Indexed: 10/17/2023]
Abstract
Partial charge fluctuations in the charge-ordered state of a material, often triggered by structural disorders and/or defects, can significantly alter its physical characteristics, such as magnetic long-range ordering. However, it is difficult to post-chemically fix such accidental partial fluctuations to reconstruct a uniform charge-ordered state. Herein, we report CO2 -aided charge ordering demonstrated in a CO2 -post-captured layered magnet, [{Ru2 (o-ClPhCO2 )4 }2 {TCNQ(OMe)2 }] ⋅ CO2 (1⊃CO2 ; o-ClPhCO2 - =ortho-chlorobenzoate; TNCQ(OMe)2 =2,5-dimethoxy-7,7,8,8-tetracyanoquinodimethane). Pristine porous layered magnet 1 had a partially charge-fluctuated ordered state, which provided ferrimagnetic ordering at TC =65 K. Upon loading CO2 , 1 adsorbed one mole of CO2 , forming 1⊃CO2 , and raising TC to 100 K. This was because of the vanishing charge fluctuations without significantly changing the framework structure. This research illustrates the post-accessible host-guest chemistry delicately combined with charge, spin, and lattice ordering in a spongy magnet. Furthermore, it highlights how this innovative approach opens up new possibilities for technology and nanoscale magnetism manipulation.
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Affiliation(s)
- Wataru Kosaka
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Yoshie Hiwatashi
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Naoka Amamizu
- Department of Materials Engineering Science, Osaka University, 1-3 Machikaneyama-chou, Toyonaka, Osaka 560-0043, Japan
| | - Yasutaka Kitagawa
- Department of Materials Engineering Science, Osaka University, 1-3 Machikaneyama-chou, Toyonaka, Osaka 560-0043, Japan
| | - Jun Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Hitoshi Miyasaka
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
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Wang Z, Chen X, Song Y, Du Z, Zhou Y, Li M, Huang W, Xu Q, Li Y, Zhao S, Luo J. A Two-Dimensional Hybrid Perovskite With Heat Switching Birefringence. Angew Chem Int Ed Engl 2023; 62:e202311086. [PMID: 37766424 DOI: 10.1002/anie.202311086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/23/2023] [Accepted: 09/26/2023] [Indexed: 09/29/2023]
Abstract
Birefringent crystals that can switch light polarization have important applications in optoelectronics. In the last decades, birefringence is mostly optimized by chemical strategies. Recently, switching birefringence by physical means has attracted much attention. Here, this work reports the observation of heat switching birefringence in a 2D layered hybrid halide perovskite (C2 N3 H4 )2 PbCl4 ((C2 N3 H4 )+ =1,2,4-triazolium). This heat switching birefringence leads to a significant change in the interference color for the crystal plate under the illumination of orthogonal polarized light. Structure analyses reveal a heat dependent structure transition in (C2 N3 H4 )2 PbCl4 , whose birefringence is switched by the change in the distortion degree of PbCl6 octahedron. This discovery may be beneficial to the further development of stimuli-responsive polarization optical devices.
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Affiliation(s)
- Ziyi Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
| | - Xu Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
| | - Yipeng Song
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
| | - Zhipeng Du
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
| | - Yang Zhou
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
| | - Minjuan Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
| | - Weiqi Huang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
| | - Qianting Xu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
| | - Yanqiang Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
| | - Sangen Zhao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
- Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, 350108, Fuzhou, Fujian, China
| | - Junhua Luo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
- Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, 350108, Fuzhou, Fujian, China
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Cao C, Xue XR, Li QY, Zhang MJ, Abrahams BF, Lang JP. Phase Transition-Promoted Rapid Photomechanical Motions of Single Crystals of a Triene Coordination Polymer. Angew Chem Int Ed Engl 2023; 62:e202306048. [PMID: 37186135 DOI: 10.1002/anie.202306048] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 05/10/2023] [Accepted: 05/15/2023] [Indexed: 05/17/2023]
Abstract
Molecular crystals with the ability to transform light energy into macroscopic mechanical motions are a promising class of materials with potential applications in actuating and photonic devices. In regard to such materials, coordination polymers that exhibit dynamic photomechanical motion, associated with a phase transition, are unknown. Herein, we report an intriguing photoactive, one-dimensional ZnII coordination polymer, 1, derived from 1,3,5-tri-4-pyridyl-1,2-ethenylbenzene and 3,5-difluorobenzoate. Single crystals of 1 under UV light irradiation exhibit rapid shrinking and bending, violent bursting-jumping, splitting, and cracking behavior. Single-crystal X-ray diffraction analysis and 1 H NMR spectroscopy reveal an unusual photoinduced phase transition involving a single-crystal-to-single-crystal [2+2] cycloaddition reaction that results in photomechanical responses. Interestingly, crystals of 1, which are triclinic with space groupP 1 ‾ ${P\bar{1}}$ , are transformed into a higher symmetry, monoclinic cell with space group C2/c. This process represents a rare example of symmetry enhancement upon photoirradiation. The photomechanical activity is likely due to the sudden release of stress associated with strained molecular geometries and significant solid-state molecular movement arising from cleavage and formation of chemical bonds. A composite membrane fabricated from 1 and polyvinyl alcohol (PVA) also displays interesting photomechanical behavior under UV light illumination, indicating the material's potential as a photoactuator.
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Affiliation(s)
- Chen Cao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, Jiangsu, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, P. R. China
| | - Xin-Ran Xue
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, Jiangsu, P. R. China
| | - Qiu-Yi Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, Jiangsu, P. R. China
| | - Min-Jie Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, Jiangsu, P. R. China
| | - Brendan F Abrahams
- School of Chemistry, University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Jian-Ping Lang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, Jiangsu, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, P. R. China
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Li Y, Wang S, Adhikari PB, Liu B, Liu S, Huang Y, Hu G, Notaguchi M, Xu Q. Evolutionary assessment of SQUAMOSA PROMOTER BINDING PROTEIN-LIKE genes in citrus relatives with a specific focus on flowering. Mol Hortic 2023; 3:13. [PMID: 37789480 PMCID: PMC10515035 DOI: 10.1186/s43897-023-00061-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 07/06/2023] [Indexed: 10/05/2023]
Abstract
Phase transition and floral induction in citrus requires several years of juvenility after germination. Such a long period of juvenility has been a major hindrance to its genetic improvement program. Studies have shown that miR156 along with its downstream genes SQUAMOSA PROMOTER BINDING PROTEINS (SBP) and SBP-LIKE (SPL) mediate the phase transition and floral induction process in plants. Our current study has systematically analyzed SPLs in 15 different citrus-related species, systematically annotated them based on their close homology to their respective Arabidopsis orthologs, and confirmed the functional attributes of the selected members in floral precocity. The majority of the species harbored 15 SPLs. Their cis-element assessment suggested the involvement of the SPLs in diverse developmental and physiological processes in response to different biotic and abiotic cues. Among all, SPL5, SPL9, and SPL11 stood out as consistently differentially expressed SPLs in the adult and young tissues of different citrus-related species. Independent overexpression of their F. hindsii orthologs (FhSPL5, FhSPL9, and FhSPL11) brought an enhanced expression of endogenous FLOWERING LOCUS T leading to the significantly precocious flowering in transgenic Arabidopsis lines. Future study of the genes in the citrus plant itself is expected to conclude the assessments made in the current study.
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Affiliation(s)
- Yawei Li
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Huazhong Agricultural University, Wuhan, 430000, China
| | - Shuting Wang
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Huazhong Agricultural University, Wuhan, 430000, China
| | - Prakash Babu Adhikari
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Huazhong Agricultural University, Wuhan, 430000, China.
| | - Bing Liu
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Huazhong Agricultural University, Wuhan, 430000, China
| | - Shengjun Liu
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Huazhong Agricultural University, Wuhan, 430000, China
| | - Yue Huang
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Huazhong Agricultural University, Wuhan, 430000, China
| | - Gang Hu
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Huazhong Agricultural University, Wuhan, 430000, China
| | - Michitaka Notaguchi
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Huazhong Agricultural University, Wuhan, 430000, China
- Bioscience and Biotechnology Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
| | - Qiang Xu
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Huazhong Agricultural University, Wuhan, 430000, China.
- Hubei Hongshan Laboratory, Wuhan, 430070, China.
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Bajaj N, Bandyopadhyay A, Sengupta A. Orientational deformations leading to temperature-induced structural phase transition in Prehnite using Raman, Infrared, and Terahertz spectroscopy. Spectrochim Acta A Mol Biomol Spectrosc 2023; 291:122308. [PMID: 36638642 DOI: 10.1016/j.saa.2022.122308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 12/08/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
Understanding molecular and structural properties of naturally extracted minerals under varying thermodynamic parameters such as pressure (P) and temperature (T) helps us to explore vital information regarding various geological processes. Here, we present the comprehensive results of Raman, infrared (IR), and Terahertz (THz) spectroscopic investigations on Prehnite (Ca2Al(AlSi3O10)(OH)2) mineral from ambient (25 °C) to 1000 °C in the 6.6 - 4000 cm-1 wide spectral range. The results indicate a substantial distortion in orientation between AlO6 octahedron and SiO4 tetrahedron layer leads to the strengthening of hydrogen bonds (HBs) in the Prehnite structure around 800 °C. Consequently, the disappearance of Raman active modes and abrupt change in frequency (ω) of Far-IR modes (obtained using THz spectroscopy) around 800 °C are spectral signatures of symmetry change in the structure. Eventually, these orientational changes at the molecular level trigger structural phase transition around 800 °C, supported by X-ray diffraction (XRD) measurements. Thus, the present study depicts the pivotal role of inter- and intra-molecular interactions in Prehnite, which determines its bonding and structural characteristics and hence its physicochemical properties under diverse environments.
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Affiliation(s)
- Naini Bajaj
- Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Aparajita Bandyopadhyay
- DRDO-Industry-Academia Centre of Excellence (DIA-CoE), Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Amartya Sengupta
- Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India; School of IT and Electrical Engineering, University of Queensland, Brisbane, QLD 4072, Australia.
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11
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Wu J, Guo Y, Qi JL, Yao WD, Yu SX, Liu W, Guo SP. Multi-Stimuli Responsive Luminescence and Domino Phase Transition of Hybrid Copper Halides with Nonlinear Optical Switching Behavior. Angew Chem Int Ed Engl 2023; 62:e202301937. [PMID: 36859761 DOI: 10.1002/anie.202301937] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/01/2023] [Accepted: 03/01/2023] [Indexed: 03/03/2023]
Abstract
Although phase transition materials (PTMs) under external stimuli are of great research interest duo to their rich potential applications, it is still challenging to explore multi-responsive PTMs. Herein, two different phases of organic-inorganic hybrid copper-based halides, α- and β-Gua3 Cu2 I5 (Gua+ =CN3 H6 + ), were synthesized by solvent evaporation method, which they crystalize in the noncentrosymmetric space group Fdd2 with zero-dimensional structure and centrosymmetric space group C2/c with one-dimensional metal-halogen framework, respectively. Interestingly, it is firstly demonstrated that Gua3 Cu2 I5 simultaneously possesses reversible PL conversion and NLO switching properties in response to thermal stimulus. Strikingly, apart from heat, its structural phase transition can also be triggered by crystalline-phase-recognition (CPR) and mechanical force. These new findings may pave a path for future exploration of PTMs with multiple physical properties.
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Affiliation(s)
- Jiajing Wu
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, 250002, China
| | - Yue Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, 250002, China
| | - Jing-Li Qi
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, 250002, China
| | - Wen-Dong Yao
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, 250002, China
| | - Su-Xin Yu
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, 250002, China
| | - Wenlong Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, 250002, China
| | - Sheng-Ping Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, 250002, China
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12
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Liu DX, Zhu HL, Zhang WX, Chen XM. Nonlinear Optical Glass-Ceramic From a New Polar Phase-Transition Organic-Inorganic Hybrid Crystal. Angew Chem Int Ed Engl 2023; 62:e202218902. [PMID: 36645367 DOI: 10.1002/anie.202218902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/14/2023] [Accepted: 01/16/2023] [Indexed: 01/17/2023]
Abstract
Melt-quenched glasses of organic-inorganic hybrid crystals, i.e., hybrid glasses, have attracted increasing attention as an emerging class of hybrid materials with beneficial processability and formability in the past years. Herein, we present a new hybrid crystal, (Ph3 PEt)3 [Ni(NCS)5 ] (1, Ph3 PEt+ =ethyl(triphenyl)phosphonium), crystallizing in a polar space group P1 and exhibiting thermal-induced reversible crystal-liquid-glass-crystal transitions with relatively low melting temperature of 132 °C, glass-transition temperature of 40 °C, and recrystallization on-set temperature of 78 °C, respectively. Taking advantage of such mild conditions, we fabricated an unprecedented hybrid glass-ceramic thin film, i.e., a thin glass uniformly embedding inner polar micro-crystals, which exhibits a much enhanced intrinsic second-order nonlinear optical effect, being ca. 25.6 and 3.1 times those of poly-crystalline 1 and KH2 PO4 , respectively, without any poling treatments.
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Affiliation(s)
- De-Xuan Liu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Hao-Lin Zhu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Wei-Xiong Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Xiao-Ming Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
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13
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Luo JB, Wei JH, Zhang ZZ, He ZL, Kuang DB. A Melt-Quenched Luminescent Glass of an Organic-Inorganic Manganese Halide as a Large-Area Scintillator for Radiation Detection. Angew Chem Int Ed Engl 2023; 62:e202216504. [PMID: 36504433 DOI: 10.1002/anie.202216504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/09/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022]
Abstract
Glass is a group of materials with appealing qualities, including simplicity in fabrication, durability, and high transparency, and they play a crucial role in the optics field. In this paper, a new organic-inorganic metal halide luminescent glass exhibiting >78 % transmittance at 506-800 nm range together with a high photoluminescence quantum yield (PLQY) of 28.5 % is reported through a low-temperature melt-quenching approach of pre-synthesized (HTPP)2 MnBr4 (HTPP=hexyltriphenylphosphonium) single crystal. Temperature-dependent X-ray diffraction, polarizing microscopy, and molecular dynamics simulations were combined to investigate the glass-crystal interconversion process, revealing the disordered nature of the glassy state. Benefiting from the transparent nature, (HTPP)2 MnBr4 glass yields an outstanding spatial resolution of 10 lp mm-1 for X-ray imaging. The superb optical properties and facility of large-scale fabrication distinguish the organic-inorganic metal halide glass as a highly promising class of materials for optical devices.
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Affiliation(s)
- Jian-Bin Luo
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Jun-Hua Wei
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Zhi-Zhong Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Zi-Lin He
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Dai-Bin Kuang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
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14
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Feld JJ, King WC, Ghany MG, Chang KM, Terrault N, Perrillo RP, Khalili M, Hinerman AS, Janssen HLA, Lok AS. Characteristics of Older Patients With Immunotolerant Chronic Hepatitis B Virus Infection. Clin Gastroenterol Hepatol 2022; 21:1503-1512.e4. [PMID: 35843468 PMCID: PMC10363409 DOI: 10.1016/j.cgh.2022.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 06/02/2022] [Accepted: 06/15/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Most patients in the immunotolerant (IT) phase of chronic hepatitis B (CHB) transition to the immune active (IA-hepatitis B surface antigen [HBeAg]+) phase by early adulthood. We examined characteristics of adults in the IT vs IA-HBeAg+ phase and rate of transition from IT to other phases of CHB, with a focus on those ≥40 years. METHODS Demographic, clinical, and virologic characteristics of participants in the Hepatitis B Research Network adult cohort study with IT CHB (alanine aminotransferase ≤1.5 × upper limit of normal, hepatitis B virus DNA >107 IU/mL) were compared by age category, and to those with IA-HBeAg+ CHB in cross-sectional analysis. This study received institutional review board approval at all participating centers. RESULTS Of 107 adult IT participants, 52 (48%) were <30, 33 (31%) were 30 to 39, and 22 (21%) were ≥40 years old (maximum, 71 years). Among IT groups, the proportion born in Asia and duration of CHB were greater in older IT groups, but virologic and liver disease characteristics were similar. Compared with IA-HBeAg+ participants (n = 192), IT participants were younger, fewer were men, more were Asian, and platelets, qHBsAg, and qHBeAg levels were higher. Similar differences were observed when comparisons were made with the ≥40 years IT group. Among IT participants, 60 (56%) transitioned during 206 person-years of follow-up. The phase transition rate per 100 person-years was highest in the <30 years group (33.0 [95% confidence interval [CI], 23.4-46.7]) vs the 30 to 39 years group (24.8 [95% CI, 15.6-39.4]) and ≥40 group (27.4 [95% CI, 14.8-50.9]), but 95% CIs overlapped. CONCLUSIONS In a large North American population, over 50% of adults in the IT phase of CHB were ≥30 years and 20% were ≥40 years old, but older IT patients had similar characteristics and rates of transition as younger IT patients.
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Affiliation(s)
- Jordan J Feld
- Toronto Centre for Liver Disease, University Health Network, University of Toronto, Toronto, Ontario, Canada.
| | - Wendy C King
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Marc G Ghany
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland
| | - Kyong-Mi Chang
- University of Pennsylvania Perelman School of Medicine and the Corporal Michael J. Crescenz VAMC, Philadelphia, Pennsylvania
| | - Norah Terrault
- University of Southern California, Los Angeles, California
| | | | - Mandana Khalili
- University of California San Francisco, San Francisco, California
| | - Amanda S Hinerman
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Harry LA Janssen
- Toronto Centre for Liver Disease, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Anna S Lok
- University of Michigan, Ann Arbor, Michigan
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15
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Zhuang JC, Zhang YH, Song N, Tan YH, Tang YZ, Huang YL, Zhang H, Li YK. Neutral 1D Perovskite-Type ABX 3 Phase Transition Material with a Narrowband Emission and Semiconductor Property. Chem Asian J 2022; 17:e202101134. [PMID: 34755488 DOI: 10.1002/asia.202101134] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/08/2021] [Indexed: 11/10/2022]
Abstract
Cyclic organic amines are emerging as excellent building blocks to assemble organic-inorganic hybrid phase transition materials due to their flexible cyclic structure. Here, we have assembled a 1D organic-inorganic hybrid dielectric material C5 H6 NOPbBr3 (1) by alloying the cyclic organic amine 3-hydroxypyridine. 1 displays a remarkable switchable dielectric response induced by an order-disorder transformation of the organic moiety, this transformation behaviour is confirmed by DSC and Hirshfeld surface measurements. More interestingly, 1 has a narrowband emission (FWHM=4.64 nm) at 590 nm; FWHM is a major quality figure for narrowband photodetectors. In addition, 1 exhibits semiconducting properties with an indirect bandgap of 2.78 eV by the analysis of the UV-Vis absorption results.
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Affiliation(s)
- Jia-Chang Zhuang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Yi-Hua Zhang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Ning Song
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Yu-Hui Tan
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Yun-Zhi Tang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Yan-Le Huang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Hao Zhang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
| | - Yu-Kong Li
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, P. R. China
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16
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Sternbach AJ, Ruta FL, Shi Y, Slusar T, Schalch J, Duan G, McLeod AS, Zhang X, Liu M, Millis AJ, Kim HT, Chen LQ, Averitt RD, Basov DN. Nanotextured Dynamics of a Light-Induced Phase Transition in VO 2. Nano Lett 2021; 21:9052-9060. [PMID: 34724612 DOI: 10.1021/acs.nanolett.1c02638] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We investigate transient nanotextured heterogeneity in vanadium dioxide (VO2) thin films during a light-induced insulator-to-metal transition (IMT). Time-resolved scanning near-field optical microscopy (Tr-SNOM) is used to study VO2 across a wide parameter space of infrared frequencies, picosecond time scales, and elevated steady-state temperatures with nanoscale spatial resolution. Room temperature, steady-state, phonon enhanced nano-optical contrast reveals preexisting "hidden" disorder. The observed contrast is associated with inequivalent twin domain structures. Upon thermal or optical initiation of the IMT, coexisting metallic and insulating regions are observed. Correlations between the transient and steady-state nano-optical textures reveal that heterogeneous nucleation is partially anchored to twin domain interfaces and grain boundaries. Ultrafast nanoscopic dynamics enable quantification of the growth rate and bound the nucleation rate. Finally, we deterministically anchor photoinduced nucleation to predefined nanoscopic regions by locally enhancing the electric field of pump radiation using nanoantennas and monitor the on-demand emergent metallicity in space and time.
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Affiliation(s)
- Aaron J Sternbach
- Department of Physics, Columbia University, New York, New York 10027, United States
| | - Francesco L Ruta
- Department of Physics, Columbia University, New York, New York 10027, United States
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, United States
| | - Yin Shi
- Department of Materials Science and Engineering, The Pennsylvania State University, State College, Pennsylvania 16801,United States
| | - Tetiana Slusar
- Electronics and Telecommunications Research Institute, Daejeon 34129, Republic of Korea
| | - Jacob Schalch
- Department of Physics, University of California San Diego, San Diego, California 92093, United States
| | - Guangwu Duan
- Department of Physics, Boston University, Boston, Massachusetts 02215, United States
| | - Alexander S McLeod
- Department of Physics, Columbia University, New York, New York 10027, United States
| | - Xin Zhang
- Department of Physics, Boston University, Boston, Massachusetts 02215, United States
| | - Mengkun Liu
- Department of Physics, Stony Brook University, Stony Brook, New York 11790, United States
| | - Andrew J Millis
- Department of Physics, Columbia University, New York, New York 10027, United States
| | - Hyun-Tak Kim
- Electronics and Telecommunications Research Institute, Daejeon 34129, Republic of Korea
| | - Long-Qing Chen
- Department of Materials Science and Engineering, The Pennsylvania State University, State College, Pennsylvania 16801,United States
| | - Richard D Averitt
- Department of Physics, University of California San Diego, San Diego, California 92093, United States
| | - D N Basov
- Department of Physics, Columbia University, New York, New York 10027, United States
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17
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Lee OS, Madjet ME, Mahmoud KA. Antibacterial Mechanism of Multifunctional MXene Nanosheets: Domain Formation and Phase Transition in Lipid Bilayer. Nano Lett 2021; 21:8510-8517. [PMID: 34402623 DOI: 10.1021/acs.nanolett.1c01986] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
MXenes, two-dimensional metal carbides or nitrides with multifunctional surfaces, are one of the most promising antibacterial nanoscale materials. However, their putative bactericidal mechanism is elusive. To study their bactericidal mechanism, we investigated the interaction between a MXene nanosheet and a model bacterial membrane by molecular dynamics simulations and found that an adsorbed MXene on a membrane surface induced a local phase transition in a domain where the fluidity of the phospholipid in this domain at room temperature was comparable with that of the gel phase. The domain also showed a denser and thinner phospholipid membrane structure than the peripheral phospholipids. By comparing it with our previous experiments of the bactericidal activity of MXenes, we proposed the leakage of intercellular molecules at the phase boundary defects as a possible bactericidal mechanism of MXenes that leads to cell lysis. This study provides a useful model for tailoring new bactericidal nanomaterials.
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Affiliation(s)
- One-Sun Lee
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, PO Box 34110 Doha, Qatar
| | - Mohamed E Madjet
- Max-Planck-Institut für Physik, Komplexer Systeme, Nöthnitzer Straße 38, 01187 Dresden, Germany
| | - Khaled A Mahmoud
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, PO Box 34110 Doha, Qatar
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18
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Richter S, Gerum R, Winterl A, Houstin A, Seifert M, Peschel J, Fabry B, Le Bohec C, Zitterbart DP. Phase transitions in huddling emperor penguins. J Phys D Appl Phys 2018; 51:214002. [PMID: 30416209 PMCID: PMC6221190 DOI: 10.1088/1361-6463/aabb8e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Emperor penguins (Aptenodytes forsteri) are highly adapted to the harsh conditions of the Antarctic winter: they are able to fast for up to 134 days during breeding. To conserve energy, emperor penguins form tight groups (huddles), which is key for their reproductive success. The effect of different meteorological factors on the huddling behaviour, however, is not well understood. Using time-lapse image recordings of an emperor penguin colony, we show that huddling can be described as a phase transition from a fluid to a solid state. We use the colony density as order parameter, and an apparent temperature that is perceived by the penguins as the thermodynamic variable. We approximate the apparent temperature as a linear combination of four meteorological parameters: ambient temperature, wind speed, global radiation and relative humidity. We find a wind chill factor of -2.9 °C/(ms -1), a humidity chill factor of -0.5°C/% rel. humidity, and a solar radiation heating factor of 0.3 °C//(Wm 2). In the absence of wind, humidity and solar radiation, the phase transition temperature (50% huddling probability) is -48.2°C for the investigated time period (May 2014). We propose that higher phase transition temperatures indicate a shrinking thermal insulation and thus can serve as a proxy for lower energy reserves of the colony, integrating pre-breeding foraging success at sea and energy expenditure at land due to environmental conditions. As current global change is predicted to have strong detrimental effects on emperor penguins within the next decades, our approach may thus contribute towards an urgently needed long-term monitoring system for assessing colony health.
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Affiliation(s)
- S Richter
- Biophysics Group, Friedrich-Alexander University, Erlangen, Germany
| | - R Gerum
- Biophysics Group, Friedrich-Alexander University, Erlangen, Germany
| | - A Winterl
- Biophysics Group, Friedrich-Alexander University, Erlangen, Germany
| | - A Houstin
- Centre Scientifique de Monaco, Département de Biologie Polaire, Monaco, Principality of Monaco
- Université de Strasbourg, CNRS, IPHC, UMR 7178, Strasbourg, France
| | - M Seifert
- Biophysics Group, Friedrich-Alexander University, Erlangen, Germany
| | - J Peschel
- Biophysics Group, Friedrich-Alexander University, Erlangen, Germany
| | - B Fabry
- Biophysics Group, Friedrich-Alexander University, Erlangen, Germany
| | - C Le Bohec
- Centre Scientifique de Monaco, Département de Biologie Polaire, Monaco, Principality of Monaco
- Université de Strasbourg, CNRS, IPHC, UMR 7178, Strasbourg, France
| | - D P Zitterbart
- Biophysics Group, Friedrich-Alexander University, Erlangen, Germany
- Applied Ocean Physics and Engineering, Woods Hole Oceanographic Institution, Woods Hole, USA
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19
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Rani A, Guo S, Krylyuk S, DiCamillo K, Debnath R, Davydov AV, Zaghloul ME. Electronic Characteristics of MoSe 2 and MoTe 2 for Nanoelectronic Applications. IEEE Trans Electron Devices 2018; 13:https://doi.org/10.1109/NMDC.2018.8605918. [PMID: 33214729 PMCID: PMC7673224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Single-crystalline MoSe2 and MoTe2 platelets were grown by Chemical Vapor Transport (CVT), followed by exfoliation, device fabrication, optical and electrical characterization. We observed that for the field-effect-transistor (FET) channel thickness in range of 5.5 nm to 8.5 nm, MoTe2 shows p-type, whereas MoSe2 with channel thickness range of 1.6 nm to 10.5 nm, shows n-type conductivity behavior. At room temperature, both MoSe2 and MoTe2 FETs have high ON/OFF current ratio and low contact resistance. Controlling charge carrier type and mobility in MoSe2 and MoTe2 layers can pave a way for utilizing these materials for heterojunction nanoelctronic devices with superior performance.
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Affiliation(s)
- Asha Rani
- The George Washington University, Washington DC, USA
| | - Shiqi Guo
- The George Washington University, Washington DC, USA
| | - Sergiy Krylyuk
- Theiss Research, La Jolla, California, USA
- Materials Science and Engineering Division, National Institute of Standards and Technology, Gaithersburg, Maryland, USA
| | | | - Ratan Debnath
- Materials Science and Engineering Division, National Institute of Standards and Technology, Gaithersburg, Maryland, USA
| | - Albert V Davydov
- Materials Science and Engineering Division, National Institute of Standards and Technology, Gaithersburg, Maryland, USA
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20
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Pal K, Thomas S, Madhu Mohan MLN. Evaluation of Versatile CdS Nanomaterials Based Liquid Crystals Switchable Device. J Nanosci Nanotechnol 2017; 17:2401-2412. [PMID: 29648430 DOI: 10.1166/jnn.2017.13457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Novel synthesis and properties of versatile CdS nanostructures (e.g., Nano-brush, nano-cube, nanosphere) dispersed liquid crystals application in chemical friendly medium exploring this article. Most recent studies, CdS nano-wire brush with the stacking fault structures were hydrothermally synthesized through a dissolution-recrystallization approach in concentrated ammonia solvent in one step solution, for the first time. Those structures-property relations with respect to ferroelectric hydrogen-bonded liquid-crystalline complex (HBLC; AC + 5BAO) controlled and efficient formation of surface relief nanostructures. A successful attempt has been made to form hydrogen bonding between CdS nanostructures and supramolecular LC with p–n-alkyloxy benzoic acids (n-OBA). The formation of an inter-H-bond is evinced through FTIR study, as well as Gaussian simulation also ensures complete formation of intermolecular hydrogen bond optimized geometry. In contrast, a new sensitive response of smectic G ordering observed in this series is investigated by constructing a phase diagram obtained from two binary mixtures of CdS nanostructures influenced by homogeneous liquid crystals. Temperature-dependent dielectric relaxation, tilt angle, electro-optical switching measurements allow for monitoring very unique and useful behavior in that the polarization of the emission from the semiconductor nanostructures can be controlled by an external bias. It reveals electrically tunable interaction of the composites may allow for engineering of practical electro-optic switchable device.
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21
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Han TRT, Zhou F, Malliakas CD, Duxbury PM, Mahanti SD, Kanatzidis MG, Ruan CY. Exploration of metastability and hidden phases in correlated electron crystals visualized by femtosecond optical doping and electron crystallography. Sci Adv 2015; 1:e1400173. [PMID: 26601190 PMCID: PMC4640616 DOI: 10.1126/sciadv.1400173] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 05/26/2015] [Indexed: 05/06/2023]
Abstract
Characterizing and understanding the emergence of multiple macroscopically ordered electronic phases through subtle tuning of temperature, pressure, and chemical doping has been a long-standing central issue for complex materials research. We report the first comprehensive studies of optical doping-induced emergence of stable phases and metastable hidden phases visualized in situ by femtosecond electron crystallography. The electronic phase transitions are triggered by femtosecond infrared pulses, and a temperature-optical density phase diagram is constructed and substantiated with the dynamics of metastable states, highlighting the cooperation and competition through which the macroscopic quantum orders emerge. These results elucidate key pathways of femtosecond electronic switching phenomena and provide an important new avenue to comprehensively investigate optical doping-induced transition states and phase diagrams of complex materials with wide-ranging applications.
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Affiliation(s)
- Tzong-Ru T. Han
- Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
| | - Faran Zhou
- Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
| | - Christos D. Malliakas
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Phillip M. Duxbury
- Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
| | - Subhendra D. Mahanti
- Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
| | - Mercouri G. Kanatzidis
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Chong-Yu Ruan
- Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- Corresponding author. E-mail:
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