Article
Nanoscience & Nanotechnology
Z. Z. Song, R. M. Niu, X. Y. Cui, E. V. Bobruk, M. Murashkin, N. A. Enikeev, R. Z. Valiev, S. P. Ringer, X. Z. Liao
Summary: This study reports chemical short-range ordering in an ultrafine-grained supersaturated Al-Zn alloy introduced by severe plastic deformation at room temperature, resulting in an ordered L1(0)-AlZn structure with dimensions of 1-3 nm. Vacancies introduced by severe plastic deformation are believed to play an important role in the formation of chemical short-range ordering at room temperature.
SCRIPTA MATERIALIA
(2022)
Article
Nanoscience & Nanotechnology
M. R. Gazizov, A. O. Boev, C. D. Marioara, S. J. Andersen, R. Holmestad, R. O. Kaibyshev, D. A. Aksyonov, V. S. Krasnikov
Summary: Research on the prevalent hardening phase forming in an Al-Cu-Mg-Ag alloy after peak-aging at 150 and 190 degrees C using transmission electron microscopy methods revealed a hybrid precipitate with plate morphology on {111} Al planes, consisting of orthorhombic and hexagonal structural fragments. Density functional theory calculations suggested that hybridization reduces structural incompatibility of the plates with the matrix, and the incorporation of Cu, Mg, and Ag in the structure reduces its formation enthalpy.
SCRIPTA MATERIALIA
(2021)
Article
Chemistry, Physical
Bruna Nadia N. Silva, Heloise O. Pastore, Alexandre A. Leitao
Summary: This study examines the simulated structures of K-, Mg-, and Ca-magadiites based on Namagadiite. The results show that Na- and K-magadiites have longer coordinated bond lengths and higher basal spacing values, while solids containing divalent cations form the strongest hydrogen bonds between water molecules and layers. Vibrational analysis identifies different stretching and bending motions of water molecules, and simulated-experimental comparison suggests a sequential adsorption of water molecules in dehydrated samples. Thermodynamic analysis confirms the difficulty of achieving complete sodium-potassium exchange, except for Ca-magadiite which can form spontaneously.
APPLIED CLAY SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Remi Arras, Kedar Sharma, Lionel Calmels
Summary: In this study, we investigated the interplay between structural defects in NiFe2O4, showing that the complex formed by a Ni-Oh/Fe-Td-cation swap and a neutral oxygen vacancy is more stable than these two isolated defects, and significantly reduces the width of the minority-spin band gap.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Nanoscience & Nanotechnology
Yang Zhang, Wenlong Si, Rong Yu, Jing Zhu
Summary: The study demonstrates the crucial role of interfacial reconstruction in modulating the microstructures and properties of heterostructures, revealing the mechanisms through atomic-resolution imaging and spectroscopy. The reported reconstruction implies the importance of polyhedral and electronic flexibility in the formation of reconstructions and offers possibilities for constructing more functional heterostructures in the future.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Chao Jiang, Lingfeng He, Cody A. Dennett, Marat Khafizov, J. Matthew Mann, David H. Hurley
Summary: We demonstrate the use of ab initio basin-hopping simulations in synergy with object kinetic Monte Carlo simulations as a powerful tool for identifying small defect complexes in irradiated materials. Our study reveals an unexpected role of bound anti-Schottky defect clusters in mediating defect transport.
SCRIPTA MATERIALIA
(2022)
Article
Chemistry, Physical
Yuuki Adachi, Runnan Zhang, Xinbo Wang, Masahiro Fukuda, Taisuke Ozaki, Yoshiaki Sugimoto
Summary: The placement of a silicon impurity atom on monolayer silicene forms a two-dimensional island, which can be manipulated to achieve atomic-scale control over silicon structures. Density functional theory calculations confirm the local reconstruction of monolayer silicene induced by the silicon impurity atom. Our findings indicate that controlling the buckling structure of monolayer silicene can tune the band structures and functionalities, which is significant for applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Peng Lei, Lin Ma, Siqi Zhang, Jianqiao Li, Linlin Gan, Ke Deng, Wubiao Duan, Wei Li, Qingdao Zeng
Summary: This study investigates the self-assembled behavior of an unsymmetric molecule (BCDTDA) and the regulatory behaviors of COR and three bipyridine derivatives on BCDTDA self-assembly structures. STM is used to observe the variation of assembled behaviors at the solid-liquid interface. The concentration effect leads to the formation of hydrogen bonded dimers, and the regulatory molecules either maintain or destroy the dimeric structure of BCDTDA, forming different co-assembled structures. The discovery of molecular interactions provides a promising strategy for the construction of functional nanostructures and devices.
CHINESE CHEMICAL LETTERS
(2023)
Article
Nanoscience & Nanotechnology
T. W. J. Kwok, T. P. McAuliffe, A. K. Ackerman, B. H. Savitzky, M. Danaie, C. Ophus, D. Dye
Summary: A TWIP steel with a specific composition was deformed to 6% strain and analyzed using 4D-STEM technique. It was found that the average elastic strain parallel and perpendicular to the twinning direction was about 6%, but there were hot spots with even larger strains up to 12%. These hot spots were attributed to a high density of Frank dislocations on the twin boundary. The strain fields in the TWIP steel were significantly larger than other twinning materials, and could explain the early thickness saturation of nanotwins.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Chemistry, Physical
Norihiko L. Okamoto, Hiroki Yoshisako, Tetsu Ichitsubo
Summary: Layered manganese dioxide with K cations and water molecules shows reversible heat storage properties, but the initial irreversible capacity of water intercalation limits the energy density for subsequent cycles. This study analyzes the crystal structures of K-containing birnessite before and after heat treatment to understand the origin of the initial irreversible capacity. The analysis reveals that the ordered arrangement of K cations after heat treatment hinders the re-intercalation of excess water in subsequent cycles.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Andreas Eitzinger, Justus Reitz, Patrick W. Antoni, Herbert Mayr, Armin R. Ofial, Max M. Hansmann
Summary: A series of extremely electron-rich N-heterocyclic olefins (mNHOs) with an exocyclic CC-double bond were synthesized and characterized. The reactions of mNHOs with arylidene malonates were studied and the nucleophile-specific parameters N and sN of mNHOs were obtained. The nucleophilicity of mNHOs was found to be much higher than conventional NHOs and the reactivity parameters allowed prediction of reaction scope with other electrophilic partners.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Andreas Eitzinger, Justus Reitz, Patrick W. Antoni, Herbert Mayr, Armin R. Ofial, Max M. Hansmann
Summary: A series of mesoionic, electron-rich N-heterocyclic olefins (mNHOs) derived from 1,2,3-triazole were synthesized and characterized. These mNHOs exhibited higher nucleophilicity compared to conventional NHOs and their reactivity with other acceptors could be predicted based on the obtained reactivity parameters.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
V. Jagadeesha Angadi, K. Manjunatha, Marisa C. Oliveira, Elson Longo, Sergio R. de Lazaro, Renan A. P. Ribeiro, S. V. Bhat
Summary: In this study, CoCr2-yScyO4 nanoparticles with varying Sc content were synthesized and characterized through experimental and theoretical methods. The research revealed a unique magnetic behavior with a decrease in critical temperature and spiral transition temperature as Sc content increased, demonstrating anisotropic spin density distribution and surface exposure as key factors in shaping the nanomagnetic properties.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Kevin M. Roccapriore, Nan Huang, Mark P. Oxley, Vinit Sharma, Timothy Taylor, Swagata Acharya, Dimitar Pashov, Mikhail I. . Katsnelson, David Mandrus, Janice L. Musfeldt, Sergei V. Kalinin
Summary: The formation of periodic structures induced by electron beam in multilayer materials provides a new mechanism to control plasmonic response and enable controlled periodic potentials on the atomic scale. This phenomenon offers insights into the fundamental physics of quantum materials and opens up possibilities for device applications.
Article
Chemistry, Multidisciplinary
Qiwei Tian, Sahar Izadi Vishkayi, Meysam Bagheri Tagani, Li Zhang, Yuan Tian, Long-Jing Yin, Lijie Zhang, Zhihui Qin
Summary: Researchers have successfully constructed two types of artificial germanium superlattices and confined the position of germanium atoms using a bismuth-induced electronic kagome lattice. The results show that at low temperature, germanium atoms form a single-atom superlattice, while at room temperature, germanium atoms and clusters are confined in different positions of the kagome lattice potential valleys, forming an artificial honeycomb superlattice.
Article
Multidisciplinary Sciences
Hanchuan Tang, Zhuoqun Hao, Ying Liu, Ye Tian, Hao Niu, Jianfeng Zang
Summary: This paper introduces a novel soft and disordered hyperuniform elastic metamaterial (DHEM) that can efficiently concentrate vibration energy in a wide frequency range. The DHEM has rational sizes and can be applied to various vibration sources. It also demonstrates good performance under deformation, enabling attachments on uneven objects.
NATIONAL SCIENCE REVIEW
(2022)
Article
Chemistry, Multidisciplinary
Ye Tian, Hanchuan Tang, Tianyu Kang, Xinyi Guo, Jiaxin Wang, Jianfeng Zang
Summary: This study presents an inverse-designed approach for the precise correction of color vision deficiency (CVD). By measuring the wavelength shift of a patient's abnormal cone photoreceptors, customized aid lenses were designed and fabricated using silica-coated gold nanoparticles with appropriate sizes and concentrations. The simulated color vision and human tests verified the effectiveness of the inverse-designed aid lenses in precise color filtering and customized CVD management.
Article
Chemistry, Physical
Li Liu, Hao Wang, Qilong Wu, Kang Wu, Yuan Tian, Haitao Yang, Cheng Min Shen, Lihong Bao, Zhihui Qin, Hong-Jun Gao
Summary: In this study, a ferroelectric-gated nonvolatile memory with a top gate architecture was demonstrated by combining multi-layer ReS2 with ferroelectric poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) copolymer films. The memory device exhibited a large memory window, ultra-high write/erase ratio, stable data retention capability, and reliable endurance.
Article
Chemistry, Multidisciplinary
Jiatian Fu, Liyun Zhao, Liang Zhou, Kang Wu, Jiaxing Du, Xiangzhuo Wang, Jiepeng Song, Lijie Zhu, Fan Zhou, Yahuan Huan, Lihong Bao, Rongming Wang, Qing Zhang, Yanfeng Zhang
Summary: This study reports the large-area uniform growth of monolayer, bilayer, and few-layer 1T-SnSe2 single-crystal flakes on mica substrates via chemical vapor deposition. The feeding amount of Sn precursor and flow rate of hydrogen carrier were found to be crucial parameters for the thickness-controlled growth. Furthermore, the study discovered that 1T-SnSe2 exhibits clear second harmonic generation, with its intensity showing a linear dependence on thickness.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Materials Science, Composites
Yuting Zhou, Youzhou Yang, Aijia Jian, Tianruo Zhou, Guangming Tao, Luquan Ren, Jianfeng Zang, Zhihui Zhang
Summary: This study presents a co-extrusion 4D printing strategy that integrates continuous metallic fibers into thermoplastic SMP, enabling programmable high-speed heating and deformation. The results demonstrate great potential for expanding the applications of shape memory polymers.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Binze Zhou, Le Qin, Pengfei Wang, Zhuo Chen, Jianfeng Zang, Jianbing Zhang, Yanwei Wen, Rong Chen
Summary: In this study, atomic layer deposition (ALD) is combined with organic materials to form dual electron transport layers (ETLs) to improve the efficiency and stability of perovskite nanocrystals light-emitting diodes (PNCs-LEDs). By optimizing the thickness of the inorganic ZnO layer, the device achieves a high external quantum efficiency of 7.21% and a low turn-on voltage of 2.4V. Moreover, the dual ETL PNCs-LED exhibits a long lifetime of 761 hours.
Article
Polymer Science
Yuting Zhou, Luquan Ren, Jianfeng Zang, Zhihui Zhang
Summary: Shape-memory polymers have important applications in the fields of mechanism and biomedical engineering, but their use in harsh environments is still challenging. Research has found that polyether-ether-ketone with high glass transition temperature exhibits excellent high-temperature resistance and shape memory behavior. By studying its shape-memory properties and actuation performance, the potential of this polymer in aerospace has been demonstrated.
Article
Multidisciplinary Sciences
Youzhou Yang, Jiaxin Wang, Liu Wang, Qingyang Wu, Le Ling, Yueying Yang, Shan Ning, Yan Xie, Quanliang Cao, Liang Li, Jihong Liu, Qing Ling, Jianfeng Zang
Summary: In this study, we propose an implantable magnetic soft robotic bladder (MRB) that can assist urination in underactive bladders. The MRB is composed of a biocompatible elastomer composite with optimized magnetic domains, allowing it to contract the bladder when actuated by magnetic fields. Experimental results in a porcine model demonstrate successful urination with increased pressure and fast urine flow.
Article
Chemistry, Multidisciplinary
Roger Guzman, Shoucong Ning, Ruizi Zhang, Hongtao Liu, Yinhang Ma, Yu-Yang Zhang, Lihong Bao, Haitao Yang, Shiduan Du, Michel Bosman, Stephen J. Pennycook, Hong-Jun Gao, Wu Zhou
Summary: In this study, the local atomic structure and magnetic behavior of V-rich V1+xTe2 nanoplates with embedded V3Te4 nanoclusters have been investigated. The self-intercalated V3Te4 magnetic phase, which possesses a distorted 1T'-like monoclinic structure, is locally stabilized by V intercalations. The phase transition is controlled by the electron doping from the intercalant V ions. The results provide insights into the studies of dilute magnetism at the 2D limit and strategies for the manipulation of magnetism for spintronic applications.
Article
Chemistry, Multidisciplinary
Ming Yang, Ping Chen, Xinyu Qu, Fuchi Zhang, Shan Ning, Li Ma, Kun Yang, Yuming Su, Jianfeng Zang, Wei Jiang, Ting Yu, Xiaochen Dong, Zhiqiang Luo
Summary: A photopatternable, antifouling, conductive and bio-adhesive hydrogel neural electrode was developed to establish a stable neural interface for bioelectronics. The hydrogel electrodes showed improved performance and could effectively stimulate the rat's sciatic nerve at ultralow voltages.
Article
Chemistry, Multidisciplinary
Yongqian Zhao, Jiancui Chen, Mengfei Xue, Runkun Chen, Shangtong Jia, Jianjun Chen, Lihong Bao, Hong-Jun Gao, Jianing Chen
Summary: This research demonstrates that isotope-enriched Mo element in alpha-MoO3 enables ultralow-loss phonon polaritons, reducing optical loss significantly by altering optical phonon frequencies and enhancing optical coherence, offering new possibilities for high-performance optical devices.
Article
Chemistry, Multidisciplinary
Hanchuan Tang, Shujie Zhang, Ye Tian, Tianyu Kang, Cheng Zhou, Shuaikang Yang, Ying Liu, Xurui Liu, Qicai Chen, Hongjun Xiao, Wei Chen, Jianfeng Zang
Summary: This study reports a bioinspired soft elastic metamaterial that reproduces the shape and key functions of the human cochlea, which enables position-related frequency demultiplexing, passive sound enhancements, and high-speed parallel processing. The artificial cochlea demonstrates fine frequency resolution, a wide audible range, and considerable output voltage, showing promise for reconstructing natural hearing in patients with severe hearing loss.
Article
Engineering, Biomedical
Yueying Yang, Zhengyang Yu, Xiaohuan Lu, Jiahao Dai, Cheng Zhou, Jing Yan, Lin Wang, Zheng Wang, Jianfeng Zang
Summary: We have developed a minimally invasive bioprinting system to fabricate electroactive hydrogel scaffolds in partial liver resection of live rats. In situ tissue regeneration is achieved by promoting cell proliferation, migration, and differentiation, as well as maintaining liver function.
BIOACTIVE MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Zhang Zhou, Xiaoxu Zhao, Liangmei Wu, Hongtao Liu, Jiancui Chen, Chuanyin Xi, Zhaosheng Wang, Enke Liu, Wu Zhou, Stephen J. Pennycook, Sokrates T. Pantelides, Xiao-Guang Zhang, Lihong Bao, Hong-Jun Gao
Summary: This study reports a dimensional crossover in self-intercalated antiferromagnetic V5S8 nanoflakes. The transition from three-dimensional to two-dimensional transport is observed when the thickness of V5S8 flakes is reduced to a certain value. The emergence of Kondo physics and the change in magnetoresistance indicate the influence of dimensional crossover on the electronic properties of 2D metallic transition-metal dichalcogenides (TMDs).
Article
Chemistry, Physical
Lihong Bao, Li Huang, Hui Guo, Hong-Jun Gao
Summary: This article provides a comprehensive overview of the construction of nanoelectronic devices based on low-dimensional structures and the investigation of their physical properties. The focus is on single molecules and 2D materials, discussing their construction, charge transport properties, spin-related electrical transport properties, and the role of interfaces in the electrical performance of electronic, optoelectronic, and memory devices. The future research direction in this field is also discussed.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
