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ferroelectric materials for neuroinspired computing applications

Fundamental Research 2024年第5期4卷 1272-1291页

作者： Dong Wang Shenglan Hao Brahim Dkhil Bobo Tian Chungang Duan Key Laboratory of Polar materials and Devices(MOE) Ministry of EducationShanghai Center of Brain-inspired Intelligent Materials and DevicesDepartment of ElectronicsEast China Normal UniversityShanghai 200241China Laboratoire Structures Propriétés et Modélisation des SolidesCentraleSupélecCNRS-UMR8580UniversitéParis-SaclayParis 91190France Zhejiang Lab Hangzhou 310000China Collaborative Innovation Center of Extreme Optics Shanxi UniversityShanxi 030006China

In recent years,the emergence of numerous applications of artificial intelligence(AI)has sparked a new technological *** applications include facial recognition,autonomous driving,intelligent robotics,and image ***,the data processing and storage procedures in the conventional von Neumann architecture are discrete,which leads to the“memory wall”*** a result,such architecture is incompatible with AI requirements for efficient and sustainable *** new computing architectures and material bases is therefore *** by neurobiological systems,in-memory and in-sensor computing techniques provide a new means of overcoming the limitations inherent in the von Neumann *** basis of neural morphological computation is a crossbar array of high-density,high-efficiency non-volatile memory *** the numerous candidate memory devices,ferroelectric memory devices with non-volatile polarization states,low power consumption and strong endurance are expected to be ideal candidates for neuromorphic *** research on the complementary metal-oxide-semiconductor(CMOS)compatibility for these devices is underway and has yielded favorable ***,we first introduce the development of ferroelectric materials as well as their mechanisms of polarization reversal and detail the applications of ferroelectric synaptic devices in artificial neural ***,we introduce the latest developments in ferroelectrics-based in-memory and in-sensor ***,we review recent works on hafnium-based ferroelectric memory devices with CMOS process compatibility and give a perspective for future developments.

关键词： ferroelectric materials ferroelectric synaptic devices Artificial neural network In-memory computing In-sensor computing

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Electrocaloric effect in ferroelectric materials:From phase field to first-principles based effective Hamiltonian modeling

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materials Reports(Energy) 2021年第3期1卷 34-63页

作者： Jingtong Zhang Xu Hou Yajun Zhang Gang Tang Jie Wang Department of Engineering Mechanics School of Aeronautics and AstronauticsZhejiang UniversityHangzhou310027PR China Department of Mechanics and Engineering Sciences College of Civil Engineering and MechanicsLanzhou UniversityLanzhouGansu730000PR China Theoretical materials Physics Q-MATCESAMUniversity of LiegeB-4000LiegeBelgium Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province Zhejiang UniversityHangzhou310027PR China

Electrocaloric effect(ECE)of ferroelectrics has attracted considerable interest due to its potential application in environmentally friendly solid-state *** discovery of giant ECE in ferroelectric thin films has greatly renewed the research activities and significantly stimulated experimental and theoretical *** this review,the recent progress on the theoretical modeling of ECE in ferroelectric and antiferroelectric materials are introduced,which mainly focuses on the phase field modeling and first-principles based effective Hamiltonian *** firstly provide the theoretical foundation and technique details for each *** a comprehensive review on the progress in the application of two methods and the strategies to tune the ECE are ***,we outline the practical procedure on the development of multi-scale computational method without experiemtal parameters for the screening of optimized electrocaloric materials.

关键词： Electrocaloric effect ferroelectric materials Phase field simulation Machine learning models First-principles based effective Hamiltonian modeling

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Research progress on 2D ferroelectric and ferrovalley materials and their neuromorphic application

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Science China(Physics,Mechanics & Astronomy) 2023年第11期66卷 55-76页

作者： Yifan Tan Junding Zheng Xuezhong Niu Yifeng Zhao Ni Zhong Bobo Tian Chungang Duan Key Laboratory of Polar materials and Devices Ministry of EducationShanghai Center of Brain-inspired Intelligent Materials and DevicesDepartment of ElectronicsEast China Normal UniversityShanghai200241China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan030006China

Two-dimensional(2D)ferroelectric and ferrovalley materials have recently received extensive attention due to their significant advantages for modern electronic devices,such as miniaturization,low-dissipation,non-volatility,and *** interestingly,the couplings between the ferroic orders in these materials have enriched the development of intelligent devices,especially in neuromorphic *** this paper,the research progress of 2D ferroelectric and ferrovalley materials is introduced and the coupling effects between them are also ***,we briefly introduce recent neuromorphic computing reports based on 2D ferroelectric materials and give perspectives on ferrovalley neuromorphic devices.

关键词： two-dimensional materials ferroelectric materials multiferroic coupling neuromorphic application

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High-performance ferroelectric based materials via high-entropy strategy:Design,properties,and mechanism

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InfoMat 2023年第12期5卷 28-53页

作者： Yueyun Zhang Liang Chen Hui Liu Shiqing Deng He Qi Jun Chen Beijing Advanced Innovation Center for materials Genome Engineering and Department of Physical ChemistryUniversity of Science and Technology BeijingBeijingthe People's Republic of China Hainan University Haikouthe People's Republic of China

High-performance ferroelectric materials are widely used in various electronic devices owing to the function of mutual conversion among different energies,which mainly relates to their special structure gene of polarization *** researches show that the high-entropy strategy has emerged as an effective and flexible approach for boosting physical properties in high-entropy ferroelectrics via the delicate design of local polarization configurations and other intrinsic effects caused by entropy increment,such as entropy stabilization,lattice disorder,inhibition of grain coarsening,improved mechanical properties,cocktail effect,and so *** this review,the recent research progress about high-entropy ferroelectrics has been summarized,especially for the directional design of novel local polarization configurations according to the characteristics of different electrical properties such as high piezoelectricity,high-efficiency energy storage,and large electrostriction,providing a guidance for designing and exploring more novel local polarization configurations in high-entropy ferroelectrics for generating higher performance.

关键词： ferroelectric materials high performance high-entropy design local structure polarization configuration

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Non-contact intelligent sensor for recognizing transparent and naked-eye indistinguishable materials based on ferroelectric BiFeO_(3)thin films

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International Journal of Extreme Manufacturing 2024年第5期6卷 263-271页

作者： Shengjie Yin Hongyu Li Weiqi Qian Md Al Mahadi Hasan Ya Yang Center on Nanoenergy Research Institute of Science and Technology for Carbon Peak&NeutralityKey Laboratory of Blue Energy and Systems Integration(Guangxi University)Education Department of Guangxi Zhuang Autonomous RegionSchool of Physical Science&TechnologyGuangxi UniversityNanning 530004People’s Republic of China Beijing Key Laboratory of Micro-Nano Energy and Sensor Center for High-Entropy Energy and SystemsBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400People’s Republic of China School of Nanoscience and Technology University of Chinese Academy of SciencesBeijing 100049People’s Republic of China

At present,the research on ferroelectric photovoltaic materials mainly focuses on photoelectric *** the context of the rapid development of the Internet of Things(IoT),it is particularly important to use smaller thin-film devices as *** this work,an indium tin oxide/bismuth ferrite(BFO)/lanthanum nickelate device has been fabricated on an F-doped tin oxide glass substrate using the sol–gel *** sensor can continuously output photoelectric signals with little environmental *** to other types of sensors,this photoelectric sensor has an ultra-low response time of 1.25 ms and ultra-high ***,a material recognition system based on a BFO sensor is *** can effectively identify eight kinds of materials that are difficult for human eyes to *** provides new ideas and methods for developing the IoT in material identification.

关键词： BiFeO_(3) ferroelectric materials self-powered photodetector material recognition

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ferroelectric solid solution Li1-xTa1-xWxO3 as potential photocatalysts in microbial fuel cells:Effect of the W content

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Chinese Journal of Chemical Engineering 2018年第9期26卷 1985-1991页

作者： Abdellah Benzaouak Nour-Eddine Touach V.M.Ortiz-Martinez M.J.Salar-Garcia F.Hernandez-Fernandez A.P.de los Rios Mohammed El Mahi El Mostapha Lotfi Laboratory of Mechanics and Industrial Processes Chemical Sciences Research TeamENSETMohammed V University in RabatMorocco Department of Chemical and Environmental Engineering Technical University of CartogenaCampus Muralla Del Mar MurdaSpain

Microbial fuel cells(MFCs)are bio-electrochemical systems that can directly convert the chemical energy contained in an effluent into bioelectricity by the action of *** performance of these devices is heavily impacted by the choice of the material that forms the *** work focuses on the assessment of ferroelectric and photocatalytic materials as a new class of non-precious catalysts for MFC cathode construction.A series of cathodes based on mixed oxide solid solution of LiTaO_3with WO_3formulated as Li_(1-x)Ta_(1-x)W_xO_3(x=0,0.10,0.20 and0.25),were prepared and investigated in *** catalyst phases were synthesized,identified and characterized by DRX,PSD,MET and UV–Vis absorption *** cathodes were tested as photoelectrocatalysts in the presence and in the absence of visible light in devices fed with industrial *** results revealed that the catalytic activity of the cathodes strongly depends on the ratio of substitution of W^(6+)in the LiTaO_*** maximum power densities generated by the MFC working with this series of cathodes increased from60.45 mW·m^(-3)for x=0.00(LiTaO_3)to 107.2 mW·m^(-3)for x=0.10,showing that insertion of W^(6+)in the tantalate matrix can improve the photocatalytic activity of this ***,MFCs operating under optimal conditions were capable of reducing the load of chemical oxygen demand by 79%(COD_(initial)=1030 mg·L^(-1)).

关键词： ferroelectric materials Tantalate Photocathode Microbial fuel cell Bioenergy Wastewater treatment

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Self-Adaptive and Electric Field-Driven Protective Layer with Anchored Lithium Deposition Enable Stable Lithium Metal Anode

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Energy & Environmental materials 2024年第3期7卷 32-40页

作者： Ting Chen Luchao Yue Guoqiang Shu Qing Yang Dong Wang Ruoyang Wang Xianyan Qiao Yan Sun Benhe Zhong Zhenguo Wu Xiaodong Guo Department of Chemical Engineering Sichuan UniversityChengdu 610065China School of Mechanical Engineering Chengdu UniversityChengdu 610106China

Lithium metal battery has great development potential because of its lowest electrochemical potential and highest theoretical ***,the uneven deposition of Li^(+)flux in the process of deposition and stripping induces the vigorous growth of lithium dendrites,which results in severely battery performance degradation and serious safety ***,the tetragonal BaTiO3 polarized by high voltage corona was used to build an artificial protective layer with uniform positive polarization direction,which enables uniform Li^(+)*** contrast to traditional strategies of using protective layer,which can guide the uniform deposition of lithium *** ferroelectric protective layer can accurately anchor the Li^(+)and achieve bottom deposition of lithium due to the automatic adjustment of the electric ***,the huge volume changes caused by Li^(+)migration change of the lithium metal anode during charging and discharging is functioned to excite the piezoelectric effect of the protective layer,and achieve seamless dynamic tuning of lithium deposition/*** dynamic effect can accurately anchor and capture Li^(+).Finally,the layer-modified Li anode enables reversible Li plating/stripping over 1500 h at 1 mA cm^(-2)and 50℃in symmetric *** addition,the assembled Li-S full cell exhibits over 300 cycles with N/P≈*** work provides a new perspective on the uniform Li^(+)flux at the Li-anode interface of the artificial protective layer.

关键词： dense plating/stripping process electric field ferroelectric materials lithium metal batteries solid electrolyte interphase

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Impedance and ferroelectric properties of Sr^(2+) modified PZT-PMN ceramics

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International Journal of Minerals,Metallurgy and materials 2014年第6期21卷 595-603页

作者： Arvind Kumar S.K.Mishra Research and Technology Development Centre Sharda University Dr. Harisingh Gour University

Sr^2＋ modified polycrystalline PZT-PMN ceramics were synthesized by a semi-wet route. Impedance spectroscopy studies indicate the bulk and grain boundary effects of PZT-PMN material along with the negative temperature coefficient of resistance. The bulk conductiv-ity exhibits an Arrhenius-type thermally activated hopping process which is supported by the AC conductivity behavior as a function of fre-quency and temperature. It is observed that the remnant polarization increases with an increase in the Sr2＋content in PZT-PMN.

关键词： piezoelectric ceramics ferroelectric materials ferroelectricity electrochemical properties strontium

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Phase field simulation of the 180°domain-switching process in PbTiO_3 single crystal under an antiparallel electric field

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International Journal of Minerals,Metallurgy and materials 2010年第4期17卷 494-499页

作者： Ping-Li Liu Wu-Yang Chu Li-Jie Qiao Corrosion and Protection Center Key Laboratory of Environmental Fracture University of Science and Technology Beijing Beijing 100083 China

The process of 180°domain switching in PbTiO_3 single crystal under an antiparallel electric field was investigated by the three-dimensional phase field simulation,especially the effect of electric field on the type and duration of domain *** is found that the polarization reversal of domains takes place under an antiparallel electric field in PbTiO_3 single *** results of the phase field simulation indicate that there is only 90°domain switching under a weak electric *** the rise of the electric field,180°domain switching *** the electric field is strengthened further,90°domain switching disappears and the duration of domain switching is shortened.

关键词： phase field simulation ferroelectric materials electric field domain switching

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CO Catalytic Oxidation of Pt-Loaded Perovskite BaTiO_3 Near ferroelectric-Phase Transition Temperature

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Acta Metallurgica Sinica(English Letters) 2018年第10期31卷 1031-1037页

作者： Si-Min Yin Jia-Jie Duanmu Yong-Feng Yuan Shao-Yi Guo Zhi-Chao Zhu Zhao-Hui Ren Gao-Rong Han College of Machinery and Automation Zhejiang Sci-Tech University State Key Lab of Silicon materials School of Materials Science and Engineering Zhejiang University

Perovskite BaTiO3 （BTO） nanocrystals with a size of 150-200 nm have successfully been synthesized via a facile hydrothermal method by employing titanate nanowires as synthetic precursor. Tetragonality and spontaneous ferroelectric polarization of BTO nanocrystals have been determined by X-ray diffraction and transmission electron microscopy investigations. BTO nanocrystals loaded with Pt nanoparticles in a size of 2-5 nm have been explored as a catalyst towards CO oxidation to CO2. It is interesting to find that CO catalytic conversion rate over Pt-BTO nanocrystals gradually decreased and further increased near 100 ℃ when the catalytic temperature keeps increasing, whereas the conversion behavior in oxides is expected to be enhanced upon the catalytic temperature grows. Using differential scanning calorimetry and first-principle calculations, the observed catalytic behavior has been discussed on the basis of the ferroelectric polarization effect and the ferroelectric-paraelectric transition of BTO nanocrystals with a Curie temperature of 110 ℃. Below Curie temperature, CO catalytic oxidation could be significantly tailored by ferroelectric polarization of BTO nanocrystals via a promoted dissociation of O2 molecules. The findings suggest that a ferroelectric polarization in perovskite oxides could be an alternative way to modify the CO catalytic oxidation.

关键词： Perovskite ferroelectric materials BaTiO3 Pt Catalysis

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