Article
Energy & Fuels
Alexander Deniz Schulz, Max Oliver Schmitt, Moritz Braun, Alexander Colsmann, Manuel Hinterstein, Holger Roehm
Summary: The relationship between the ferroelectric properties in derivatives of methylammonium lead iodide and the performance of perovskite solar cells is studied. Interesting interactions are discovered through experiments and structural analysis.
Article
Materials Science, Multidisciplinary
Yoonho Ahn, Jong Yeog Son
Summary: The study investigated the deposition-rate-dependent ferroelectric properties of BaTiO3 thin films fabricated through pulsed laser deposition, revealing an enhancement in ferroelectric properties with increased tetragonality. It was also found that the deposition rate affects the leakage current and bandgap energy of the films.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Chemistry, Multidisciplinary
Florian Massuyeau, Thibault Broux, Florent Coulet, Aude Demessence, Adel Mesbah, Romain Gautier
Summary: This article introduces a machine learning-based method that utilizes X-ray diffraction patterns to automatically determine whether unknown materials are perovskite-type materials, providing a new efficient approach for determining crystal structures.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
T. Wesley Surta, Thomas A. Whittle, Matthew A. Wright, Hongjun Niu, Jacinthe Gamon, Quinn D. Gibson, Luke M. Daniels, William J. Thomas, Marco Zanella, Philippa M. Shepley, Yang Li, Anton Goetzee-Barral, Andrew J. Bell, Jonathan Alaria, John B. Claridge, Matthew J. Rosseinsky
Summary: The study demonstrates a distinctive approach to lead-free piezoelectrics based on the relaxor parent material KBMN, where the roles of K+ and Bi3+ ions in the perovskite structure are crucial for the thermal and electrical behavior and ultimately enhance performance.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
Oliver Tschauner, Shichun Huang, Shuying Yang, Munir Humayun, Wenjun Liu, Stephanie N. Gilbert Corder, Hans A. Bechtel, Jon Tischler, George R. Rossman
Summary: Calcium silicate perovskite, known as davemaoite, is a geochemically important phase in the lower mantle, concentrating elements like thorium and uranium. The discovery of compositional heterogeneity within the lower mantle in davemaoite suggests its influence on the heat budget of the deep mantle. Further observations reveal the presence of potassium in davemaoite, in addition to uranium and thorium, making it thermodynamically stable in the deep mantle.
Article
Chemistry, Multidisciplinary
Shuo Feng, Rajesh Kumar Singh, Yucheng Fu, Zhuo Li, Yulong Wang, Jie Bao, Zhijie Xu, Guosheng Li, Cassidy Anderson, Lili Shi, Yuehe Lin, Peter G. Khalifah, Wei Wang, Jun Liu, Jie Xiao, Dongping Lu
Summary: In this study, a simple strategy was demonstrated for constructing low-tortuosity through-pores in both vertical and planar directions of electrodes by casting large particles into single-particle-layer electrodes. Through multi-scale characterizations and simulations, correlations between material/electrode structures, electrolyte permeability, polysulfide migration, and sulfur reactions were elucidated. The high-loading and dense sulfur cathode fabricated by this method delivers a high specific capacity at a very low electrolyte/sulfur ratio.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Huajie Luo, He Qi, Shengdong Sun, Lu Wang, Yang Ren, Hui Liu, Shiqing Deng, Jun Chen
Summary: Achieving high piezoelectric performance in the (1-x)(Na0.5Bi0.5)TiO3-x(0.9BaTiO(3)-0.1BiAlO(3)) ternary system through crystal structure design, with the incorporation of BiAlO3 suppressing structural distortion and enabling extensive and reversible phase transformation under electric field. In-situ electric field synchrotron X-ray diffraction reveals that the crystal lattice of the R3c phase responds more flexibly to the electric field than that of the P4bm phase. Enhanced piezoelectric response is attributed to activated domain switching and lattice strain enhancement from subtle phase structure.
Article
Chemistry, Multidisciplinary
Ting-Ting Ying, Yun-Zhi Tang, Yu-Hui Tan, Yi-Ran Zhao, Jia-Ying Wang, Ming-Yang Wan, Fang Xin Wang, Xiao Wei Fan, Yu Kong Li
Summary: This study reports a single-component organic enantiomeric phase transition material that exhibits high-temperature reversible phase transitions and excellent dielectric switching properties. The two enantiomers display similar physical and chemical properties, including high structural phase transition temperatures, step-like dielectric anomalies, and flexible dielectric switching properties.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Chemistry, Multidisciplinary
Zhenyue Wu, Weichuan Zhang, Huang Ye, Yunpeng Yao, Xitao Liu, Lina Li, Chengmin Ji, Junhua Luo
Summary: The study successfully synthesized a hybrid perovskite photoferroelectric material with a high Tc value through a halogen substitution strategy introducing bromine atoms. Compared to the prototypical compound, the new material demonstrated a remarkable increase in Tc value, further expanding its application temperature range. The material also exhibited a reversible photovoltaic effect and remarkable ferroelectric attributes.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Lei Cheng, Zhou Liu, Shunde Li, Yufeng Zhai, Xiao Wang, Zhi Qiao, Qiaofei Xu, Ke Meng, Zhiyuan Zhu, Gang Chen
Summary: A new type of MA-free FA-based low-dimensional perovskites shows superior photovoltaic performance and thermal stability compared to MA-containing 2D perovskites.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Yunpeng Yao, Haidong Jiang, Yu Peng, Xinyuan Zhang, Shuang Chen, Xitao Liu, Junhua Luo
Summary: The researchers have successfully developed a green bilayered hybrid double perovskite photoferroelectric with high Curie temperature and remarkable photoelectric properties, setting a new record in the field of multilayered hybrid perovskite ferroelectrics and providing insights for the rational design of high-performance photoelectric devices.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Engineering, Electrical & Electronic
Waseem Abbas, Derek Ho, Abhijit Pramanick
Summary: Research shows that by controlling different defect concentrations in thin films, a superior combination of characteristics can be achieved in BaTiO3-BiScO3 thin films, enabling high energy storage density and efficiency while maintaining good thermal stability.
ACS APPLIED ELECTRONIC MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Jiaming Li, Enwei Sun, Yaping Ma, Huashan Zheng, Hua Zhao, Zhiguo Zhang
Summary: This study proposes a method to quantitatively characterize the phase transition processes of ferroelectric materials using fluorescence wavelength shift, demonstrating exact consistency between changes in fluorescence peak positions and structural phase transitions. The contactless, non-destructive fluorescence method provides localized quantitative analysis for phase transition processes in ferroelectric materials. The method based on fluorescence peak wavelength dependence on crystal environment may potentially be applied to characterize phase transitions in other ferroelectric materials.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Aleks Reinhardt, Mandy Bethkenhagen, Federica Coppari, Marius Millot, Sebastien Hamel, Bingqing Cheng
Summary: Through large-scale molecular dynamics simulations, we studied the phase behavior of high-pressure ice. The results indicate that some ice phases with a body-centered cubic oxygen lattice belong to the same thermodynamic phase under different conditions, while superionic ice has a first-order phase boundary. Furthermore, at higher pressures, the activation barrier for ice transformation gradually increases. Our study reveals peculiar solid-solid transition mechanisms in high-pressure ice phases.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
S. Kato, N. Nakajima, S. Yasui, S. Yasuhara, D. Fu, J. Adachi, H. Nitani, Y. Takeichi, A. Anspoks
Summary: For the first time, the dielectric response of a BaTiO3 thin film under an AC electric field was investigated using microsecond time-resolved X-ray absorption spectroscopy. The study revealed the correlated contributions of each constituent atom on the electronic states, with Ti 3d hybridizing with O 2p and Ti 4p, and Ba contributing to polarization reversal.
Article
Chemistry, Multidisciplinary
Hidetomo Hongu, Akira Yoshiasa, Massimo Nespolo, Tsubasa Tobase, Makoto Tokuda, Kazumasa Sugiyama
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS
(2019)
Article
Crystallography
Makoto Tokuda, Akira Yoshiasa, Tsutomu Mashimo, Hiroshi Arima, Hidetomo Hongu, Tsubasa Tobase, Akihiko Nakatsuka, Kazumasa Sugiyama
ZEITSCHRIFT FUR KRISTALLOGRAPHIE-CRYSTALLINE MATERIALS
(2019)
Article
Materials Science, Multidisciplinary
Piotr Wyzga, Tsutomu Mashimo, Akira Yoshiasa, Lucyna Jaworska, Piotr Klimczyk
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2019)
Article
Mineralogy
Makoto Tokuda, Akira Yoshiasa, Hiroshi Kojitani, Saki Hashimoto, Seiichiro Uehara, Tsutomu Mashimo, Tsubasa Tobase, Masaki Akaogi
MINERALOGICAL MAGAZINE
(2019)
Article
Materials Science, Multidisciplinary
Tsubasa Tobase, Akira Yoshiasa, Toshifumi Komatsu, Takumi Maekawa, Hidetomo Hongu, Maki Okube, Hiroshi Arima, Kazumasa Sugiyama
PHYSICS AND CHEMISTRY OF MINERALS
(2019)
Article
Multidisciplinary Sciences
Akira Yoshiasa, Makoto Tokuda, Masaaki Misawa, Fuyuki Shimojo, Koichi Momma, Ritsuro Miyawaki, Satoshi Matsubara, Akihiko Nakatsuka, Kazumasa Sugiyama
SCIENTIFIC REPORTS
(2019)
Article
Biophysics
Lingyan Yang, Liliang Chen, Yi-Chun Chen, Lei Kang, Jiantao Yu, Yuhang Wang, Chengjia Lu, Tsutomu Mashimo, Akira Yoshiasa, Chia-Hua Lin
COLLOIDS AND SURFACES B-BIOINTERFACES
(2019)
Article
Crystallography
Massimo Nespolo, Makoto Tokuda, Akira Yoshiasa
CRYSTAL RESEARCH AND TECHNOLOGY
(2020)
Article
Materials Science, Ceramics
Weijian Ma, Tsutomu Mashimo, Shota Tamura, Makoto Tokuda, Shinichi Yoda, Masayuki Tsushida, Michio Koinuma, Akihisa Kubota, Hiroshi Isobe, Akira Yoshiasa
CERAMICS INTERNATIONAL
(2020)
Article
Multidisciplinary Sciences
Tadao Nishiyama, Hiroaki Ohfuji, Kousuke Fukuba, Masami Terauchi, Ukyo Nishi, Kazuki Harada, Kouhei Unoki, Yousuke Moribe, Akira Yoshiasa, Satoko Ishimaru, Yasushi Mori, Miki Shigeno, Shoji Arai
SCIENTIFIC REPORTS
(2020)
Article
Geosciences, Multidisciplinary
Tadao Nishiyama, Hibiki Eguchi, Dai Shiosaki, Akira Yoshiasa, Nobutatsu Mochizuki, Yasushi Mori, Kazumasa Sugiyama, Hiroshi Arima, Kunio Yubuta
Summary: The spinifex-like textured metaperidotites in the Higo Metamorphic Rocks may have formed from high-pressure dehydration of antigorite, indicating deep subduction of serpentinite. Three rock types have been identified based on mineral assemblage and rock texture, with olivines in all types being mostly serpentinized during exhumation. The presence of medium pressure granulites and gneisses in the HMR suggests a deep root into the mantle, from which the metaperidotites may have derived.
Article
Materials Science, Multidisciplinary
Huimin Shao, Hiroshi Isobe, Ginga Kitahara, Hiroshi Fukui, Akira Yoshiasa
Summary: Iron meteorites provide valuable insights into the evolutionary and cosmochemical processes of their parent bodies through analyzing the crystal structures and chemical compositions of Fe-Ni phases. Advanced techniques like synchrotron radiation-based X-ray absorption fine structure and X-ray diffraction are effective in identifying these crystal structures in iron meteorites.
PHYSICS AND CHEMISTRY OF MINERALS
(2021)
Article
Chemistry, Multidisciplinary
Tsutomu Mashimo, Tamura Shota, Kenta Yamamoto, Zhazgul Kelgenbaeva, Weijan Ma, Makoto Tokuda, Michio Koinuma, Hiroshi Isobe, Akira Yoshiasa
Article
Mineralogy
Tsubasa Tobase, Akira Yoshiasa, Satoshi Jinnouchi, Ginga Kitahara, Hidetomo Hongu, Makoto Tokuda, Maki Okube, Kazumasa Sugiyama
JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES
(2019)
Article
Mineralogy
Alison C. Schmitt, Makoto Tokuda, Akira Yoshiasa, Tadao Nishiyama
JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES
(2019)