检索结果-内蒙古大学图书馆

Superionic conductivity in halide solid electrolyte enabled by lattice extension

Chemical Engineering Journal 2025年 516卷

作者： Wang, Sheng Yu, Zhaozhe Huang, Xiao Xu, Deli Zhu, Jiang He, Jianshu Yu, Kangzhe Zhao, Shangquan Zhou, Yaqing Tian, Bingbing Guangxi Key Laboratory of Manufacturing Systems and Advanced Manufacturing Technology Guilin University of Electronic Technology Guangxi Guilin541004 China International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale Optoelectronics Shenzhen University Guangdong Shenzhen518060 China Jiangxi Province Key Laboratory of Lithium-ion Battery Materials and Application School of Physics and Materials Science Nanchang University Nanchang330031 China Chimie ParisTech - CNRS PSL University Institut de Recherche de Chimie Paris 11 rue Pierre et Marie Curie Paris75005 France

Halide solid electrolytes have recently attracted significant attention due to their promising combination of high ionic conductivity, excellent electrochemical stability, and favorable mechanical properties. In this study, a lattice extension strategy is employed to enable a series of Li2ZrCl6-xIx (LZCIx, 0 ≤ x ≤ 2) solid electrolytes. The incorporation of I− ions into the Li2ZrCl6 lattice not only preserves the original crystal structure but also expands the lattice, enhances structural disorder, and significantly boosts ionic conductivity. Among the synthesized electrolytes, Li2ZrCl5I exhibited a room-temperature ionic conductivity of 1.06 mS cm−1, four times that of pristine Li2ZrCl6, and a low activation energy of 0.32 eV. Ab initio molecular dynamics (AIMD) and bond valence site energy (BVSE) calculations reveal that I− doping constructs a broader three-dimensional lithium-ion migration network, reducing the energy barrier and facilitating superior ion transport. When integrated into all-solid-state batteries (ASSBs) with TiS2 cathodes, Li2ZrCl5I electrolytes demonstrated exceptional electrochemical performance, including high initial Coulombic efficiency (97.01 %), excellent capacity retention (88 % over 500 cycles at 1C), and robust rate capability. Notably, the Li2ZrCl5I −based ASSBs maintained stable operation under high active-material loading conditions (90 % TiS2). These findings highlight the potential of iodide-substituted halides as advanced SSEs for next-generation energy storage systems, providing a novel approach to improving ionic transport and electrochemical performance in ASSBs. © 2025 Elsevier B.V.

关键词： Lithium-ion batteries

来源：评论

学校读者我要写书评

暂无评论

Atomistic simulations of thermodynamic properties of liquid gallium from first principles

arXiv

引用

arXiv 2023年

作者： Wu, Hongyu Shi, Wenliang He, Ri Shi, Guoyong Zhang, Chunxiao Zhong, Zhicheng Li, Run-Wei CAS Key Laboratory of Magnetic Materials and Devices Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo315201 China College of Materials Science and Opto-Electronic Technology University of Chinese Academy of Sciences Beijing100049 China Department of Physics Yantai University Yantai264005 China School of Physics and Optoelectronic Engineering Shandong University of Technology Shandong Zibo255100 China

Thermodynamic properties serve as essential characteristics of any physical systems, offering insights into the system’s behavior under specific conditions. Determining these properties in disordered systems from first principles remains a formidable challenge due to the intricate incorporation of nuclear quantum effects into large-scale atomic simulations. In this study, we employ a machine-learning deep potential model in conjunction with the quantum thermal bath method to address the complexities of nuclear quantum effects. Applying this approach, we accurately calculate the variations in various thermodynamic quantities of liquid gallium across temperatures ranging from zero to room temperature. These quantities include internal energy, specific heat, enthalpy change, entropy, and Gibbs free energy, demonstrating excellent agreement with experimental data. Our research marks a significant advancement in the exploration of thermodynamics within liquids, amorphous materials, and other disordered systems. Copyright © 2023, The Authors. All rights reserved.

关键词： Specific heat

来源：评论

学校读者我要写书评

暂无评论

Unconventional ferroelectric domain switching dynamics in CuInP2S6 from first principles

引用

Physical Review B 2023年第2期108卷 024305-024305页

作者： Ri He Hua Wang Fucai Liu Shi Liu Houfang Liu Zhicheng Zhong Key Laboratory of Magnetic Materials Devices and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 China School of Micro-Nano Electronics Hangzhou Global Scientific and Technological Innovation Center Zhejiang University Hangzhou 310027 China School of Optoelectronic Science and Engineering University of Electronic Science and Technology of China Chengdu 611731 China Yangtze Delta Region Institute (Huzhou) University of Electronic Science and Technology of China Huzhou 313001 China Key Laboratory for Quantum Materials of Zhejiang Province Department of Physics School of Science Westlake University Hangzhou 310024 China Institute of Natural Sciences Westlake Institute for Advanced Study Hangzhou 310024 China Institute of Microelectronics and Beijing National Research Center for Information Science and Technology (BNRist) Tsinghua University Beijing 100084 China China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 China

The switching dynamics of ferroelectric materials is a crucial intrinsic property which directly affects the operation and performance of ferroelectric devices. In conventional ferroelectric materials, the typical ferroelectric switching mechanism is governed by a universal process of domain-wall motion. However, recent experiments indicate that van der Waals ferroelectric CuInP2S6 possesses anomalous polarization switching dynamics under an electric field. It is important to understand the switching dynamics, but it remains theoretically unexplored in CuInP2S6 due to the lack of description of its order-disorder phase transition characteristics by density functional theory. Here we employ a machine-learning potential trained from the first-principles density functional theory dataset to conduct large-scale atomistic simulations of temperature-driven order-disorder ferroelectric phase transition in CuInP2S6. Most importantly, it is found that the electric-field-driven polarization switching in CuInP2S6 is mediated by a single Cu dipole flip rather than a conventional domain-wall-motion mechanism. This intrinsic unconventional switching behavior can be attributed to the competition between the energy barrier of domain-wall motion and single-dipole flip.

关键词： Ferroelectricity 2-dimensional systems Deep learning Density functional theory

来源：评论

学校读者我要写书评

暂无评论

A reliability evaluation software for Flip Chip based on failure physics

A reliability evaluation software for Flip Chip based on fai...

引用

International Conference on (ICEPT) electronic Packaging technology

作者： Si Chen Qiushi Wu Zhiwei Fu Yun Huang Bin Yao Bin Zhou Physics and Application of Electronic Component Laboratory Science and Technology on Reliability Guangzhou China School of Electronic and Information Engineering South China University of Technology Guangzhou China

ISBN: (数字)9781728168265

ISBN: (纸本)9781728168272

This paper introduces the flip chip reliability evaluation software developed based on failure physics. Firstly, the system framework of the software is introduced, and then the core algorithm of the software is described. Key parameters such as stress, strain, plastic strain energy density, displacement, acceleration can be extracted, and the service life of the selected structure is obtained through relevant failure physical models. The lifetime of each key structure is used to obtain the lifetime of the whole flip chip device through the competition algorithm of short board effect. An example of Flip chip device reliability evaluation under condition of standard GJB548B-2005 method 1010.1 C temperature cycling was given, it shows that the predicted device life is 207 cycles.

关键词： Load modeling Software Analytical models Software reliability Flip-chip devices Finite element analysis

来源：评论

学校读者我要写书评

暂无评论

A Blockchain-Based Streaming Data Sharing Scheme with Incentives and Trust Access Control

Research Square

引用

Research Square 2021年

作者： Wang, Yanping Hu, Teng Zhong, Qi Zhu, Yukun Song, Jingcheng Zhang, Xiaosong University of Electronic Science and Technology of China China Institute of Computer Application China Academy of Engineering Physics China Deakin University Australia

The fifth-generation of cellular mobile communications (5G) networks promotes the internet of everything, smart devices are setting to penetrate each piece of our life, generating a large amount of data. Data sharing is essential to derive the inherent value, either in the form of social/financial gain or strategic competitive advantage. However, the concerns of security and the deficiency of effective incentive in the Internet of things (IoT) lead to the poor willingness of data sharing. Such considerations call for novel IoT data-sharing protocols that can achieve better data security and provide a more attractive incentive mechanism. In this paper, we exploit smart contracts, re-encryption, and hash-chain to propose a reliable streaming data sharing scheme. Firstly, the incentives to stimulate the owner’s enthusiasm of sharing data is considered, our scheme provides authorized user accessible to the shared data and provides data providers profits to share data. Secondly, a n-time query mechanism that provided flexible data access is designed, in which authorized users can query the data n times within an agreed time. Since the query voucher and every successful query is recorded and verified by smart contract, everyone in the blockchain network can validate it, the trustfulness of data access are ensured. The analysis showed that our scheme has better performance than some of the current data sharing schemes, and the experiment is conducted to demonstrate the effectiveness of our design. © 2021, CC BY.

关键词： Smart contract

来源：评论

学校读者我要写书评

暂无评论

Tuning Charge Transfer and Ion Diffusion in 3d Nanotubular Arrays by Engineering Vacancy and Implanting Sodiophilic Seeds for Dendrite-Free Sodium Metal Anodes

SSRN

引用

SSRN 2023年

作者： Li, Yulei Zhang, Xiaofei Wang, Tongzhen Yang, Jie Cui, Jiewu Yan, Jian Liu, Jiaqing Tan, Hark Hoe Yu, Yan Wu, Yucheng Institute of Industry & Equipment Technology School of Materials Science and Engineering Engineering Research Center of Advanced composite Materials Design Application of Anhui Province Hefei University of Technology Hefei230009 China Department of Electronic Materials Engineering Research School of Physics and Engineering Australian National University CanberraACT2601 Australia Department of Materials Science and Engineering CAS Key Laboratory of Materials for Energy Conversion University of Science and Technology of China Hefei230026 China

Sodium metal anode (SMA) stands out as a compelling choice for future high-energy Na batteries due to its high theoretical capacity and low redox potential. However, its widespread application is severely impeded by dendrite-related hazards. Designing a host for "hostless" SMA has emerged as a promising strategy to address its harmful dendrite growth. Recent studies highlight the effectiveness of low-tortuosity arrays in SMA for guiding rapid ion transport and achieving uniform Na deposition. Herein, a pioneering 3D host, Ag@H-TNTA, characterized by low-tortuosity hydrogenated TiO2-x nanotubular arrays decorated with silver nanocrystals, are unveiled for constructing fast, stable, and dendrite-free SMA. The strategic introduction of oxygen vacancies and the implantation of sodiophilic seeds enable the achievement of rapid and coordinated electronic/ion transport as well as uniform electric-field/ion flux distribution in the Ag@H-TNTA, ultimately facilitating uniform Na deposition. Consequently, Ag@H-TNTA electrode exhibits a dendrite-free plating morphology and maintains an impressive Coulombic efficiency of ≈ 98% over 600 cycles at 1 mA cm-2 with a capacity of 1 mAh cm-2. Outstanding cycling performances and high rate capabilities of Ag@H-TNTA-Na anode are also demonstrated in both symmetric and full cells, underscoring the potential of Ag@H-TNTA as a robust host for stable and dendrite-free SMA. © 2023, The Authors. All rights reserved.

关键词： Sodium

来源：评论

学校读者我要写书评

暂无评论

Black equation of the electromigration lifetime for ceramic package with lead bumps and plastic package with lead-free bump

Black equation of the electromigration lifetime for ceramic ...

引用

International Conference on (ICEPT) electronic Packaging technology

ISBN: (数字)9781728168265

ISBN: (纸本)9781728168272

In this study, electromigration accelerated life tests of lead-containing copper pillar bumps in ceramic packages and lead-free copper pillar bumps in plastic packages were carried out at different current densities and ambient temperatures. The electromigration life prediction model based on Black equation was established for the two. The influence index n and activation energy Q of current density of interconnection bumps with two structures were determined through MTTF analysis of samples. Based on the life prediction model, the effects of substrate material, temperature and current density parameters on electromigration life were compared. Finally, considering the influence of Joule heating effect and current crowding effect, the electromigration life prediction models of the two bumps are modified.

关键词： Copper Electromigration Lead Resistance Ceramics Mathematical model Plastics

来源：评论

学校读者我要写书评

暂无评论

lon migration suppression mechanism via 4-sulfobenzoic acid monopotassium salt for 22.7%stable perovskite solar cells

引用

science China Materials 2022年第12期65卷 3368-3381页

作者： Le Bai Fang Yao Rui Wang Baibai Liu Dongmei He Qian Zhou Wenqi Wang Cunyun Xu Xiaobo Hu Shaoqiang Chen Qunliang Song Tingwei Zhou Donghwa Lee Pengjun Zhao Cong Chen Hua Yang Qianqian Lin Zhigang Zang Jiangzhao Chen Key Laboratory of Optoelectronic Technology&Systems(Ministry of Education) College of Optoelectronic EngineeringChongqing UniversityChongqing 400044China Key Lab of Artificial Micro-and Nano-Structures of Ministry of Education of China School of Physics and TechnologyWuhan UniversityWuhan 430072China Department of Electronic Engineering East China Normal UniversityShanghai 200241China Institute for Clean Energy and Advanced Materials School of Materials and EnergySouthwest UniversityChongqing 400715China School of Physical Science and Technology Southwest UniversityChongqing 400715China Department of Materials Science and Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Korea Xinjiang Technical Institute of Physics and Chemistry Chinese Academy of SciencesUrumqi 830011China School of Material Science and Engineering State Key Laboratory of Reliability and Intelligence of Electrical EquipmentHebei University of TechnologyTianjin 300130China Spallation Neutron Source Science Center Institute of High Energy PhysicsUniversity of Chinese Academy of Sciences(CAS)Dongguan 523803China

The deep-level traps at grain boundaries(GBs)and halide ion migration are quite challenging for further enhancement of the stability and efficiency of perovskite solar cells(PSCs)as well as for the elimination of notorious ***,we report a large-sized strongly coordinated organic anion GB anchoring strategy for suppressing ion migration and passivating defects in planar *** practical implementation of this strategy involves the incorporation of potassium salts containing a large-sized organic counter anion(4-sulfobenzoic acid monopotassium salt,SAMS)into the perovskite *** has been found that anions within SAMS can be firmly anchored at GBs due to the strong coordination interaction between C=O and/or S=O at both ends of bulky anion and undercoordinated Pb^(2+)and/or halide vacancies,along with the hydrogen bond between–OH and *** can not only passivate shallowlevel defects but also cause more effective passivation of the deep-level *** GB manipulation strategy results in a reduced defect density,an increased carrier lifetime as well as suppressed ion migration,which in turn contributed to enhanced efficiency and stability of PSCs together with a thorough elimination of *** a result,the SAMSmodified device with an outstanding fill factor of 0.84 delivers a significant improvement in efficiency(22.7%)in comparison with the control device(20.3%).The unencapsulated modified device demonstrates only little degradation after 1320 h at 60℃.

关键词： perovskite solar cells ion migration suppression defect passivation large-sized organic anions potassium cations

来源：评论

学校读者我要写书评

暂无评论

A Privacy-Preserving Blockchain-based Information Shared Scheme in Smart-Cities 9th

A Privacy-Preserving Blockchain-based Information Shared Sch...

引用

9th International Conference on Computational Data and Social Networks, CSoNet 2020

作者： Wang, Yanping Wang, Xiaofen Wen, Pan Hu, Teng Zhang, Xiaosong University of Electronic Science and Technology of China ChengDu Sichuan611731 China Institute of Computer Application China Academy of Engineering Physics Mianyang Sichuan621900 China

ISBN: (纸本)9783030660451

Development of the Internet leads to a growing number of data. The data collected across the city is very useful for analysis and decision making. Data sharing is an important way to make good use of the valuable data. Since the data cannot be disclosed publicly in some cases, encrypted data sharing schemes are proposed. However, encryption causes a certain difficulty in data usage. In order to balance the data usage and privacy, this paper proposes a privacy-preserving blockchain-based data sharing scheme for smart cities, in which data is only shared to the authorized user. Moreover, the data accountability, trust and non-repudiability are provided by using blockchain, the access control and data confidentiality are enabled by using Attribute-Based Encryption (ABE), the Interplanetary File System (IPFS) system is used to mitigate the limitation of blockchain storage. Furthermore, the proposed scheme provides retrieval privacy to users, the interest record is obfuscated with other unrelated records to protect the user’s privacy. The theoretical analysis and simulation are performed, and the results show that the proposed scheme is feasible. © 2020, Springer Nature Switzerland AG.

关键词： Smart contract

来源：评论

学校读者我要写书评

暂无评论

Deposition mechanism and photodetector application of plasma-enhanced atomic layer-deposited Ta2O5 films at various deposition temperatures

引用

Ceramics International 2025年

作者： Wang, Chen Zhou, Chen-Hao Wang, Jian-Gui Cho, Yun-Shao Wu, Wan-Yu Wuu, Dong-Sing Huang, Chien-Jung Lien, Shui-Yang Xiamen Key Laboratory of Development and Application for Advanced Semiconductor Coating Technology School of Opto-Electronic and Communication Engineering Xiamen University of Technology Xiamen361024 China Department of Electrical Engineering Da-Yeh University Changhua51591 Taiwan Department of Materials Science and Engineering National United University Miaoli36063 Taiwan Department of Applied Materials and Optoelectronic Engineering National Chi Nan University Nantou54561 Taiwan Department of Applied Physics National University of Kaohsiung Kaohsiung81148 Taiwan

In this work, a plasma-enhanced atomic layer deposition (PEALD) has been employed to fabricate Ta2O5 thin films for application in ultraviolet detection. The film properties have been explored in a wide deposition temperature range of 200–450 °C. A deposition mechanism with three deposited states of physisorption, chemisorption and desorption has been proposed to illustrate the temperature-controlled properties of Ta2O5 films. The ALD temperature window has been decided to be 250−350 °C with a close growth per cycle of ∼0.61 Å/cycle and the chemisorption is dominant in this temperature range. Based on those Ta2O5 films deposited in ALD window, Ta2O5/p-Si heterojunction ultraviolet photodetectors have been fabricated, which can achieve a superior performance with a high photo/dark current ratio of 7.2 × 104, a high responsivity of 0.61 A/W and a good specific detectivity of 1.9 × 1012 Jones at −5 V and 254 nm ultraviolet light. In addition, photodetectors with Ta2O5 films deposited at 350 °C shows an improved spectral response in the wavelength range from 200 nm to 360 nm with a peak response of 0.82 A/W at 296 nm. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Tantalum oxides

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：