Article
Chemistry, Multidisciplinary
Hiroshi Takashima, Yoshiyuki Yoshida, Mitsuho Furuse
Summary: Superconducting pastes have been developed from superconducting particles, showing superconductivity, flexibility, adhesion, and ink properties in organic/inorganic hybrid compounds.
Article
Chemistry, Inorganic & Nuclear
Zhu Yang, Shulin Jiao, Zheng Tang, Xiaofan Sun, Dong Li, Peng Chen, Yanzhou Lu, Wentao Zhang, Hongling Cai, Xiaoshan Wu
Summary: In this study, a zinc-based zero-dimensional organic-inorganic ferroelectric material was successfully synthesized, and its phase transition from the ferroelectric phase to the paraelectric phase was revealed. The material exhibits high spontaneous polarization and excellent optoelectronic properties, thus showing potential applications in the optoelectronic field.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Lingbo Xiao, Xiaoli Xu, Zheng Lu, Jie Zhao, Ruiyuan Liu, Yaqi Ye, Rujun Tang, Wei-Qiang Liao, Ren -Gen Xiong, Guifu Zou
Summary: Researchers have successfully grown an organic-inorganic ferroelectric layer on the perovskite film of solar cells, which enhances the built-in electric field and reduces non-radiative recombination pathways, leading to improved performance.
Article
Multidisciplinary Sciences
Juhyeok Lee, Syed Zahid Hassan, Sangjun Lee, Hye Ryun Sim, Dae Sung Chung
Summary: This study proposes a highly efficient crosslinking strategy to connect organic and inorganic components in organic-inorganic hybrid dielectric layers, resulting in dense and defect-free thin films. The fabricated oxide transistors with this hybrid dielectric layer exhibit exceptional performance with high electron mobility and bias-stress stability.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Chao-Ran Huang, Xuzhong Luo, Xiao-Gang Chen, Xian-Jiang Song, Zhi-Xu Zhang, Ren-Gen Xiong
Summary: The study introduces the first lead-free 2D HOIP multiaxial ferroelectric, which displays more ferroelectric axes and equivalent polarization directions than other 2D HOIP ferroelectrics and lead-free inorganic perovskite BaTiO3. The new material features a high Curie temperature and remarkable thermochromism, offering a new direction for the development of lead-free 2D HOIP ferroelectrics.
NATIONAL SCIENCE REVIEW
(2021)
Article
Polymer Science
Jonas Hafner, Davide Disnan, Simone Benaglia, Ricardo Garcia, Ulrich Schmid
Summary: The first demonstrations of ferro-and piezoelectricity in solution-processed ferroelectric polymer thin films have stimulated research activities in both academia and industry. These films have been used in memory devices as bistable polarization switches and in (micro-)electromechanical devices as transducers. The fabrication of solution-processed ferroelectric polymer nanocrystals, known as ferroelectric nanomesas, has been demonstrated in this work, and their ferroelectric activity has been verified. Synthesizing self-assembled ferroelectric polymer nanocrystals from polymer solution by spin-casting represents a promising approach for the realization of ferroelectric nanomesas.
Article
Materials Science, Ceramics
Niraj Kumar, Ekta Kumari, P. Siva Ram Krishna, Ajay Kumar Kalyani
Summary: A new ferroelectric solid solution has been explored for high-temperature piezoelectric materials. The study reveals a correlation between composition and the Curie point and tetragonal lattice strain. Neutron powder diffraction analysis suggests the anomalous behavior is due to the off-centering characteristic of the Bi+3 ion at the A-site.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Jun Harada, Haruka Takahashi, Rin Notsuka, Mika Takehisa, Yukihiro Takahashi, Tomoyasu Usui, Hiroki Taniguchi
Summary: A new ionic molecular ferroelectric crystal with remarkable malleability and multiaxial ferroelectricity is discovered, which can be processed into transparent bulk crystalline plates with high ferroelectric performance and spontaneous polarization. This material represents a promising functional material due to its large-scale availability and processability into various bulk crystalline forms.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Sheng-Tao Mo, Kai-Ming Feng, Jing-Lin Pang, Kuo Ouyang, Li-Mei Jiang, Qiong Yang, Biao Zhang, Jie Jiang
Summary: This study successfully fabricated a transparent flexible Ce-doped hafnium oxide ferroelectric thin film and demonstrated its high transmittance and good performance. The research provides an important experimental basis for the development of transparent flexible ferroelectric memories.
Article
Multidisciplinary Sciences
Chen Lin, Zijun Zhang, Zhenbang Dai, Mengjiao Wu, Shi Liu, Jialu Chen, Chenqiang Hua, Yunhao Lu, Fei Zhang, Hongbo Lou, Hongliang Dong, Qiaoshi Zeng, Jing Ma, Xiaodong Pi, Dikui Zhou, Yongjun Wu, He Tian, Andrew M. Rappe, Zhaohui Ren, Gaorong Han
Summary: Single-crystal ferroelectric oxide films were successfully epitaxially grown on Nb-doped SrTiO3 single-crystal substrates through a solution reaction at a low temperature. The epitaxy was mainly driven by an electronic polarization screening effect at the interface. Atomic-level characterization revealed a nontrivial polarization gradient throughout the films, possibly due to a structural transition. This polarization gradient generated an extremely high photoresponsivity, surpassing that of other known ferroelectrics.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Mingming Chen, Youwen Yuan, Yuan Liu, Dawei Cao, Chunxiang Xu
Summary: A facile one-step solution growth method is proposed to synthesize high-quality all-inorganic CsPbBr3 single crystals in this study, and the properties of these crystals are studied through high-resolution X-ray diffraction, photoluminescence (PL), and current-voltage techniques.
Article
Crystallography
Yi Yuan, Zenghui Liu, Maryam Bari, Zuo-Guang Ye
Summary: In this work, new bismuth-based complex perovskite piezo-/ferroelectric single crystals have been successfully grown and analyzed. The results show that these single crystals have high Curie temperature, good piezoelectric performance, and high coercive field, making them ideal candidates for potential high-temperature and high-power electromechanical applications.
JOURNAL OF CRYSTAL GROWTH
(2022)
Article
Optics
Xiaomei Chen, Wen-gao Lu, Jialun Tang, Yongyou Zhang, Yongtian Wang, Gregory D. Scholes, Haizheng Zhong
Summary: Waveplates are commonly used in photonics for controlling the polarization of light, typically made from birefringent crystals. This study introduces a discovery of wideband achromatic retardation in Cs4PbBr6 perovskite crystals embedded with CsPbBr3 nanocrystals, providing potential for future applications with their ease of fabrication.
Article
Chemistry, Multidisciplinary
Jiajia Che, Kai Wu, Wei Hu, Jinlong Yang
Summary: In this study, an inverse design approach was employed to discover two-dimensional materials with both ferroelectricity and the Rashba effect. Through high-throughput calculations and material screening, 14 specific two-dimensional ferroelectric Rashba semiconductors were identified, which offer potential for electrically reversible spin texture. This finding holds significance for future spintronics.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Mingqiang Zhong, Changlai Yuan, Xiao Liu, Baohua Zhu, Liufang Meng, Changrong Zhou, Fei Liu, Jiwen Xu, Jiang Wang, Guanghui Rao
Summary: A new solid solution of BNT-BCN fabricated via solid-state route exhibit single perovskite structure and normal ferroelectric behavior, with low band gap and high photocurrent and photovoltage, making it suitable for high-stability photovoltaic devices.
Article
Chemistry, Multidisciplinary
Hengjun Chen, Pascal Loiseau, Gerard Aka, Benoit Baptiste, Philippe Veber
CRYSTAL GROWTH & DESIGN
(2020)
Article
Crystallography
Matias Velazquez, Fabrice Bert, Philippe Mendels, Dominique Denux, Philippe Veber, Michel Lahaye, Christine Labrugere
JOURNAL OF CRYSTAL GROWTH
(2020)
Article
Crystallography
C. Stelian, M. Velazquez, P. Veber, A. Ahmine, T. Duffar, P. de Marcillac, A. Giuliani, D. V. Poda, S. Marnieros, C. Nones, V. Novati, E. Olivieri, A. S. Zolotarova, H. Cabane, T. Redon
JOURNAL OF CRYSTAL GROWTH
(2020)
Article
Materials Science, Multidisciplinary
Jurij Koruza, Hairui Liu, Marion Hoefling, Mao-Hua Zhang, Philippe Veber
JOURNAL OF MATERIALS RESEARCH
(2020)
Article
Chemistry, Inorganic & Nuclear
Jordi Ibanez, Juan Angel Sans, Vanesa Cuenca-Gotor, Robert Oliva, Oscar Gomis, Placida Rodriguez-Hernandez, Alfonso Munoz, Ulises Rodriguez-Mendoza, Matias Velazquez, Philippe Veber, Catalin Popescu, Francisco Javier Manjon
INORGANIC CHEMISTRY
(2020)
Article
Materials Science, Ceramics
Maria Isabel Rua Taborda, Catherine Elissalde, U-Chan Chung, Mario Maglione, Egon Fernandes, Armaghan Salehian, Onuma Santawitee, Helene Debeda
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2020)
Article
Materials Science, Ceramics
Blessing N. Ezealigo, Roberto Orru, Catherine Elissalde, Helene Debeda, U-Chan Chung, Mario Maglione, Giacomo Cao
Summary: The structural and dielectric properties of BTZ ceramics prepared using SPS from powders obtained via SHS are strongly influenced by the sintering temperature, with post-annealing leading to phase transitions. SPS ceramics with compositions 0.05 < x < 0.20 sintered at 1200 degrees C exhibit standard ferroelectric behavior. The BTZ ceramic with 5% Zr shows the best dielectric permittivity and piezoelectric properties among the compositions studied.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
N. Spampinato, G. Pecastaings, M. Maglione, G. Hadziioannou, E. Pavlopoulou
Summary: The study investigates the blend of ferroelectric polymer P(VDF-co-TrFE) with semiconducting polymer P3HT using scanning probe microscopy techniques. It reveals that P3HT tends to stay at the film surface, with an almost constant composition, and increasing P3HT content causes segregation at the upper layers of the films. The three-dimensional morphology of this polymer blend deviates significantly from the ideal morphology proposed for efficient memory devices.
COLLOID AND POLYMER SCIENCE
(2021)
Article
Chemistry, Physical
Julia Mari-Guaita, S. Gallego-Parra, J. A. Sans, M. Velazquez, Philippe Veber, P. Rodriguez-Hernandez, A. Munoz, F. J. Manjon
Summary: This study reports an experimental investigation of (Gd1-xYbx)(2)O-3 under high pressure using Raman scattering measurements and ab initio calculations, revealing a phase transition sequence different from that of pure Gd2O3. Theoretical calculations helped identify different polymorphs and assign the symmetry of Raman-active modes in the three phases. The pressure coefficients of Raman-active modes in the three phases were reported and compared to those of pure Gd2O3 and other rare-earth sesquioxides.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Christophe Daumont, Quentin Simon, Sandrine Payan, Pascal Gardes, Patrick Poveda, Mario Maglione, Beatrice Negulescu, Nazir Jaber, Jerome Wolfman
Summary: This study investigates the potential of BCTZ thin films for tunable ferroelectric capacitors, showing high performance achieved through the CPLD method. The results demonstrate that compounds close to (Ba0.84Ca0.16)(Ti0.8Zr0.2)O-3 exhibit the best performance, while a zone with compositions around (Ba0.91Ca0.09)(Ti0.81Zr0.19)O-3 show the best compromise between tuning ratio and figure of merit.
Article
Chemistry, Physical
Maria Poienar, Matthias Josef Gutmann, Gheorghe Lucian Pascut, Vaclav Petricek, Gavin Stenning, Paulina Vlazan, Paula Sfirloaga, Carsten Paulmann, Martin Tolkiehn, Pascal Manuel, Philippe Veber
Summary: In this paper, a new synthesis method for mixed valence iron phosphate is reported, and temperature-dependent measurements of structural and physical properties are performed to understand the electronic-structural interplay in this compound. The results show that a structural phase transition and electronic ordering occur at a temperature similar to 213K, and three-dimensional antiferromagnetic ordering is observed at low temperatures.
Article
Crystallography
Maria Poienar, Paula Svera, Bogdan-Ovidiu Taranu, Catalin Ianasi, Paula Sfirloaga, Gabriel Buse, Philippe Veber, Paulina Vlazan
Summary: In this study, Ni-11(HPO3)(8)(OH)(6) materials with catalytical and fluorescence properties were synthesized through a hydrothermal approach. The electrode modified with reduced graphene oxide, carbon black, and nickel phosphite exhibited the highest current density, attributed to the synergistic effect between the nickel phosphite and carbon materials. The investigation of the electrode's oxygen evolution reaction performance revealed promising results, and fluorescence properties were analyzed at an excitation length of 344 nm.
Article
Chemistry, Physical
M. Gerin, D. Machon, S. Radescu, S. Le Floch, Y. Le Godec, T. Gaudisson, F. Alabarse, P. Veber, R. Debord, D. Amans, V. Pischedda
Summary: The high-pressure behavior of Si0.8Ge0.2 alloy is explored using in situ Raman spectroscopy, X-ray diffraction techniques, and density functional theory (DFT) simulations. It was found that the alloy undergoes pressure-induced transitions from the stable cubic semiconducting phase to the tetragonal beta-tin metallic phase during compression. Upon decompression, successive transitions towards metastable phases are observed. This research is important for understanding the effects of alloying on physical properties and for potential applications in optoelectronics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Constance Toulouse, Danila Amoroso, Robert Oliva, Cong Xin, Pierre Bouvier, Pierre Fertey, Philippe Veber, Mario Maglione, Philippe Ghosez, Jens Kreisel, Mael Guennou
Summary: In this paper, the high pressure behavior of BaZrO3 is reexamined using first-principle calculations, Raman spectroscopy and x-ray diffraction. The cubic-to-tetragonal transition at 10 GPa is experimentally confirmed, while no evidence for other phase transitions is found up to 45 GPa, contradicting past reports. Density functional theory calculations show that the tetragonal phase becomes more stable with increasing pressure compared to phases with more complex tilt systems, ruling out the possibility of a second transition to another tilted phase at higher pressures, particularly the common orthorhombic Pnma structure.