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Recent progress in perovskite solar cells:material science

Science China Chemistry 2023年第1期66卷 10-64页

作者： Jiang-Yang Shao Dongmei Li Jiangjian Shi Chuang Ma Yousheng Wang Xiaomin Liu Xianyuan Jiang Mengmeng Hao Luozheng Zhang Chang Liu Yiting Jiang Zhenhan Wang Yu-Wu Zhong Shengzhong(Frank)Liu Yaohua Mai Yongsheng Liu Yixin Zhao Zhijun Ning Lianzhou Wang Baomin Xu Lei Meng Zuqiang Bian Ziyi Ge Xiaowei Zhan Jingbi You Yongfang Li Qingbo Meng Beijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China Laboratory for Renewable Energy(CAS) Beijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing 100190China Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationShaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologyInstitute for Advanced Energy MaterialsSchool of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710119China Institute of New Energy Technology College of Information Science and TechnologyJinan UniversityGuangzhou 510632China School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Physical Science and Technology Shanghai Tech UniversityShanghai 201210China Australian Institute for Bioengineering and Nanotechnology and School of Chemical Engineering The University of QueenslandSt LuciaBrisbaneQLD 4072Australia Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices Ningbo Institute of Materials Technology&EngineeringChinese Academy of SciencesNingbo 315201China Key Laboratory of Polymer Chemistry and Physics of Ministry of Education School of Materials Science and EngineeringPeking UniversityBeijing 100871China Key Laboratory of Semiconductor Materials Science Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China School of Chemical Sciences University of Chinese Academy of SciencesBeijing 100049China Dalian National Laboratory for Clean Energy Collaborative Innovation Center of Chemistry for Energy Materials(iChEM)Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Key Laboratory of Funct

Perovskite solar cells represent a promising third-generation photovoltaic technology with low fabrication cost and high power conversion *** light of the rapid development of perovskite materials and devices,a systematic survey on the latest advancements covering a broad range of related work is urgently *** review summarizes the recent major advances in the research of perovskite solar cells from a material science *** discussed topics include the devices based on different type of perovskites(organic-inorganic hybrid,all-inorganic,and lead-free perovskite and perovskite quantum dots),the properties of perovskite defects,different type of charge transport materials(organic,polymeric,and inorganic hole transport materials and inorganic and organic electron transport materials),counter electrodes,and interfacial materials used to improve the efficiency and stability of *** discussions focus on the key progresses reported within the recent five ***,the major issues limiting the production of perovskite solar cells and the prospects for the future development of related materials are discussed.

关键词： perovskite solar cells power conversion efficiency perovskite materials hole transport materials electron transport materials counter electrode materials interfacial functional materials defects

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Deoxidation behavior of boron in the production of C10200 oxygen-free copper: Effects on microstructure and material properties

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Journal of materials Research and technology 2025年 36卷 9529-9538页

作者： Chu Cheng Yan-Shuo Feng Ming-Yu Li Hai-Tao Liu Meng-Xin Wang Ling-Liang Zhang Tao Huang Xiao-Wen Peng Zhi-He Dou Hui-Wen Guo Ke-Xing Song School of Materials Science and Engineering Henan University of Science and Technology Luoyang 471023 China Henan Key Laboratory of Non-ferrous Materials Science & Processing Technology Henan University of Science and Technology Luoyang 471003 China Provincial and Ministerial Co-construction Collaborative Innovation Center of Nonferrous New Materials and Advanced Processing Technology Luoyang 471023 China Key Laboratory of Ecological Utilization of Multi-metal Intergrown Ores of Ministry of Education Northeastern University Shenyang 110819 China Chinalco Luoyang Copper Processing Co. Ltd Luoyang 471039 China Henan Key Laboratory of Advanced Conductor Materials Institute of Materials Henan Academy of Sciences Zhengzhou 450002 China

Oxygen-free copper is widely used in power electronics, high-power modules, aerospace applications, and other advanced technologies. Currently, oxygen-free copper is primarily produced via phosphorus deoxidation, which negatively impacts the electrical and mechanical properties, as well as the adhesion of the high-temperature oxide layer, thereby limiting the broader application of oxygen-free copper. In order to overcome the negative effects of phosphorus deoxidation in preparation of oxygen-free copper, it is proposed to replace phosphorus deoxidation with boron to eliminate the harm of phosphorus deoxidation in preparation of oxygen-free *** study investigates the production of oxygen-free copper using boron deoxidation for ceramic copper-chad plates, focusing on the deoxidation behavior of boron in copper melts and the influence of residual boron on the microstructure and properties of copper. The results show that boron can reduce the oxygen content in copper from 643 ppm to below 10 ppm. Boron primarily removes oxygen from [Cu 2 O] in the Cu–B–O melt, and the relationship between oxygen and boron concentrations in copper follows the Boltzmann model. As boron content increases in oxygen-free copper after deoxidation, the average grain size and electrical conductivity decrease. The relationship between average grain size and boron content adheres to the Boltzmann model, while the relationship between conductivity and boron content follows a logistic model. Tensile strength and elongation of copper initially increase and then decrease; the fracture mode of copper shifts from dimple fracture to brittle fracture and, ultimately, to a mixed dimple-brittle fracture. When the oxygen content of copper is 10 ppm and the residual boron content is 150 ppm, the comprehensive properties of oxygen-free copper are the best, the tensile strength is 156.7 MPa, the elongation is 41.58 %, and the conductivity is 97.98 IACS%. Boron enhances copper's strength via solid solu

关键词： Mass concentration model Oxygen-free copper Mechanical property Electrical conductivity

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Unexpected giant negative area compressibility in palladium diselenide

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National Science Review 2023年第9期10卷 146-153页

作者： Xingxing Jiang Shengzi Zhang Dequan Jiang Yonggang Wang Maxim S.Molokeev Naizheng Wang Youquan Liu Xingyu Zhang Zheshuai Lin New Functional Crystals Group Key Laboratory of Functional Crystals and Laser TechnologyTechnical Institute of Physics and ChemistryChinese Academy of Sciences Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences University of Chinese Academy of Sciences Center for High Pressure Science &Technology Advanced Research School of Materials Science and Engineering Peking University Laboratory of Crystal Physics Kirensky Institute of PhysicsSB RAS Department of Physics Far Eastern State Transport University International Research Center of Spectroscopy and Quantum Chemistry Siberian Federal University

Negative area compressibility（NAC） is a counterintuitive 'squeeze-expand' behavior in solids that is very rare but attractive due to possible pressure-response applications and coupling with rich physicochemical ***,NAC behavior is reported in palladium diselenide with a large magnitude and wide pressure *** discover that,apart from the rigid flattening of layers that has been generally recognized,the unexpected giant NAC effect in PdSe2largely comes from anomalous elongation of intralayer chemical *** structural variations are driven by intralayer-to-interlayer charge transfer with enhanced interlayer interactions under *** work updates the mechanical understanding of this anomaly and establishes a new guideline to explore novel compression-induced properties.

关键词： negative area compressibility Lifshitz mechanism charge transfer

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Hydrogen storage performance and phase transformations in as-cast and extruded Mg-Ni-Gd-Y-Zn-Cu alloys

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Journal of materials Science & technology 2023年第20期151卷 162-177页

作者： Hu Yao Guang Zeng Xin FTan Qinfen Gu Kazuhiro Nogita Jing Guo Qian Li School of Materials Science and Engineering Central South UniversityChangsha 410083China Nihon Superior Centre for the Manufacture of Electronic Materials(NS CMEM) School of Mechanical and Mining EngineeringThe University of QueenslandBrisbaneQLD 4072Australia Australian Synchrotron ANSTO.800 Blackburn RdClaytonVIC 3168Australia Hunan Baohuifeng New Material Science&Technology Co. Ltd.HuaihuaChangsha 418000China National Engineering Research Center for Magnesium Alloys&College of Materials Science and Engineering Chongqing UniversityChongqing 400044China State Key Laboratory of Advanced Special Steels&Shanghai Key Laboratory of Advanced Ferrometallurgy&School of Materials Science and Engineering Shanghai UniversityShanghai 200444China

Thermal-mechanical processing of magnesium-based materials is an effective method to tailor the hydrogen storage *** this study,Mg-Ni-Gd-Y-Zn-Cu alloys were prepared by Direct Chill(DC)casting,with and without extrusion *** influences of microstructure evolution,introduced by DC casting and thermal-mechanical processing,on the hydrogen storage performance of Mg-Ni-Gd-Y-ZnCu alloys were comprehensively explored,using analytical electron microscopy and in-situ synchrotron powder X-ray *** result shows that the extruded alloy yields higher hydrogen absorption capacity and faster hydrogen ab/desorption *** subjected to extrusion processing,theα-Mg grains in the microstructure were significantly refined and a large number of 14H type long-period stacking ordered(LPSO)phases appeared on theα-Mg *** activation,there were more nanosized Gd hydride/Mg2Ni intermetallics and finer *** modifications synergistically enhance the hydrogen storage *** findings have implications for the alloy design and manufacturing of magnesiumbased hydrogen storage materials with the advantages of rapid mass production and anti-oxidation.

关键词： Magnesium alloy Hydrogen storage performance Nanosized hydride Grain refinement Synchrotron X-ray diffraction Long-period stacking ordered(LPSO)phase

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Novel implantable devices delivering electrical cues for tissue regeneration and functional restoration

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Medicine in Novel technology and Devices 2022年第4期16卷 70-78页

作者： Liu Wang Kuntao Chen Yubo Fan Lan Yin Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education Beijing Advanced Innovation Center for Biomedical EngineeringSchool of Biological Science and Medical EngineeringAnd with the School of Engineering MedicineBeihang UniversityBeijing100083PR China School of Materials Science and Engineering The Key Laboratory of Advanced Materials of Ministry of EducationState Key Laboratory of New Ceramics and Fine ProcessingCenter for Flexible Electronics TechnologyTsinghua UniversityBeijing100084PR China

Millions of people suffer from tissue diseases and organ dysfunction,such as bone or nerve defects,spinal cord injuries and arrhythmia,which often leads to morbidity and *** stimulation as a promising nonpharmacological technique has been proven to be effective in promoting tissue regeneration and functional ***,existing clinical electrical therapies are often limited to intraoperative window or percutaneous stimulation that suffer from insufficient time frame and potential infection *** overcome these challenges,innovative electrical stimulation implants with miniaturized,self-powered,flexible or biodegradable features have been *** review summarizes recent advances of novel materials strategies and device schemes for tissue regeneration and/or functional restoration of bones,nerves,gastrointestinal tracts,cardiac systems,*** on future directions of electrical stimulation devices are given at the end.

关键词： electrical stimulation functional

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TSV Integrated and Pattern Recognition Based Multimode Degenerated Low-Power 3-Dimensional Smart Sensing Chips

TSV Integrated and Pattern Recognition Based Multimode Degen...

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China Semiconductor technology International Conference (CSTIC)

作者： Simian Zhang Xiaonan Deng Yuqi Wang Yifei Wu Shengxian Ke Jianing Liu Yuchun Lin Zeli Wang Zhengcao Li Chen Wang State Key Laboratory of New Ceramics and Fine Processing Key Laboratory of Advanced Materials of Ministry of Education School of Materials Science and Engineering Tsinghua University Beijing China Beijing Advanced Innovation Center for Integrated Circuits Beijing China

ISBN: (数字)9798350362190

ISBN: (纸本)9798350362206

This paper demonstrates a low-power designed and highly integrated multimode sensor chip that employs wafer level packaging and TSV based 3D integration to ensure high integrated density, high flexibility and high reliability. Through-silicon vias (TSVs) can be adopted to extract electrodes from the back or cross of the wafer to achieve shared integrated circuits, miniaturization of devices and anti-interference capabilities. The integrated multimode sensing chips based on 3D packaging realize the miniaturization of high-performance chips and further provide opportunities for pattern recognition based multimode single-device sensing chips. This unique technology solutions can achieve high compatibility and high packaged manufacturing according to different needs and can be widely applied to various microsystem chips.

关键词： Micromechanical devices Three-dimensional displays Manufacturing processes Semiconductor device reliability Packaging Sensors Pattern recognition

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An ultralight,flexible,and biocompatible all-fiber motion sensor for artificial intelligence wearable electronics

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npj Flexible Electronics 2022年第1期6卷 235-242页

作者： Sen Lin Shuang Hu Wei Song Miaoqing Gu Junchen Liu Jianan Song Zhenglian Liu Ziwei Li Kun Huang Yufeng Wu Ming Lei Hui Wu School of Physical Science and Technology Guangxi UniversityNanning 530004China Advanced Institute for Brain and Intelligence Guangxi UniversityNanning 530004China State Key Laboratory of Information Photonics and Optical Communications and School of Science Beijing University of Posts and TelecommunicationsBeijing 100876China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

new-generation human body motion sensors for wearable electronics and intelligent medicine are required to comply with stringent requirements in terms of ultralight weight,flexibility,stability,biocompatibility,and extreme ***,conventional sensors are hard to fulfill all these criteria due to their rigid structure,high-density sensing materials used as the constituents,as well as hermetical and compact assembly ***,we report an ultralight sensing material based on radial anisotropic porous silver fiber(RAPSF),which has been manufactured by phase separation and temperature-controlled grain growth strategy on a modified blow-spinning *** resistance of RAPSF could be dynamically adjusted depending on the deflected ***,an all-fiber motion sensor(AFMS)with an ultra-low density of 68.70 mg cm^(−3) and an overall weigh of 7.95 mg was fabricated via layer-by-layer *** sensor exhibited outstanding flexibility,breathability,biocompatibility,and remarkable body motion recognition ***,the AFMS was shown to have great potential as an artificial intelligence throat sensor for throat state identification at the accuracy above 85%,allowing one to spot the early onset of the viral throat illness.

关键词： fiber artificial motion

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Single-atom nanozymes with axial ligand-induced self-adaptive conformation in alkaline medium boost chemiluminescence

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Science China Chemistry 2023年第3期66卷 904-912页

作者： Zhen Luo Liliang Tian Hengjia Wang Zhichao Wu Xin Luo Xiaosi Wang Lei Jiao Xiaoqian Wei Ying Qin Lirong Zheng Liuyong Hu Wenling Gu Le Shi Chengzhou Zhu Key Laboratory of Pesticides and Chemical Biology of Ministry of Education International Joint Research Center for Intelligent Biosensing Technology and HealthCollege of ChemistryCentral China Normal UniversityWuhan 430079China State Key Laboratory of Electrical Insulation and Power Equipment Centre of Nanomaterials for Renewable EnergySchool of Electrical EngineeringXi’an Jiaotong UniversityXi’an 710049China Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Hubei Key Laboratory of Plasma Chemistry and Advanced Materials Hubei Engineering Technology Research Center of Optoelectronic and New Energy MaterialsWuhan Institute of TechnologyWuhan 430205China Fujian Shuikou Power Generation Group Corp. Fuzhou 350000China

Mimicking the structure of natural enzymes for designing advanced alternatives provides great opportunities to address the bottleneck of enzyme-involved chemiluminescence(CL). Herein, according to theoretical calculations, we found that an endogenous axial ligand of M-N-C single-atom nanozymes(SAzymes), originating from OH-spontaneously bonding to the metal center in an alkaline medium, can self-adaptively change its strength to facilitate intermediate steps. Furthermore, the lowest energy barrier of the rate-determining step and the strongest affinity and fastest electron transfer with luminol anion endow CoN-C with the highest peroxidase-like activity. Guided by the theoretical calculations, a series of M-N-C SAzymes(M=Fe, Co,Ni) were synthesized to boost CL, where Co-N-C SAzymes with superior catalytic activity and high selective generation of O_(2)·- were validated. As a proof-of-concept, Co-N-C SAzymes were employed for sensitive detection of acetylcholinesterase and organophosphorus pesticide.

关键词： single-atom nanozymes chemiluminescence hydrogen peroxide activation biosensing

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Stable all-solid-state Li-Te battery with Li_(3)TbBr_(6) superionic conductor

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Nano Research 2023年第7期16卷 9344-9351页

作者： Zhichao Zeng Xiaomeng Shi Mingzi Sun Hongtu Zhang Wei Luo Yunhui Huang Bolong Huang Yaping Du Chun-Hua Yan Tianjin Key Lab for Rare Earth Materials and Applications Center for Rare Earth and Inorganic Functional MaterialsHaihe Laboratory of Sustainable Chemical TransformationsSmart Sensing Interdisciplinary Science CenterSchool of Materials Science and EngineeringNational Institute for Advanced MaterialsNankai UniversityTianjin 300350China Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077China Institute of New Energy for Vehicles School of Materials Science and EngineeringTongji UniversityShanghai 201804China Beijing National Laboratory for Molecular Sciences State Key Laboratory of Rare Earth MaterialsChemistry and ApplicationsPKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic ChemistryCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China College of Chemistry and Chemical Engineering Lanzhou UniversityLanzhou 730000China

Rare-earth(RE)halide solid electrolytes(HSEs)have been an emerging research area due to their good electrochemical and mechanical properties for all-solid-state lithium batteries(ASSBs).However,only very limited types of HSEs have been reported with high *** this work,tens of grams of RE-HSE Li_(3)TbBr_(6)(LTbB)was synthesized by a vacuum evaporationassisted *** as-prepared LTbB displays a high ionic conductivity of 1.7 mS·cm^(-1),a wide electrochemical window,and good ***,the assembled solid lithium-tellurium(Li-Te)battery based on the LTbB HSE exhibits excellent cycling stability up to 600 cycles,which is superior to most previous *** processes and the chemicals during the discharge/charge of Li-Te batteries have been studied by various in situ and ex situ *** calculations have demonstrated the dominant conductivity contributions of the direct[octahedral]-[octahedral]([Oct]-[Oct])pathway for Li ion migrations in the *** Tb sites guarantee efficient electron transfer while the Li 2s orbitals are not affected during migration,leading to a low activation ***,this successful fabrication and application of LTbB have offered a highly competitive solution for solid electrolytes in ASSBs,indicating the great potential of RE-based HSEs in energy devices.

关键词： rare-earth halide solid electrolytes all-solid-state lithium batteries superionic conductor Li-Te solid battery

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Polyoxometalated metal-organic framework superstructure for stable water oxidation

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Science (new York, N.Y.) 2025年第6745期388卷 430-436页

作者： Yue, Kaihang Lu, Ruihu Gao, Mingbin Song, Fei Dai, Yao Xia, Chenfeng Mei, Bingbao Dong, Hongliang Qi, Ruijuan Zhang, Daliang Zhang, Jiangwei Wang, Ziyun Huang, Fuqiang Xia, Bao Yu Yan, Ya State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai China School of Chemistry and Chemical Engineering State Key Laboratory of Materials Processing and Die & Mould Technology Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education) Hubei Key Laboratory of Material Chemistry and Service Failure Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology (HUST) Wuhan China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing China School of Chemical Sciences University of Auckland Auckland New Zealand National Engineering Laboratory for Methanol to Olefins Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian China Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai Synchrotron Radiation Facility Shanghai China Center for High Pressure Science and Technology Advanced Research Shanghai China Key Laboratory of Polar Materials and Devices (MOE) Department of Electronics East China Normal University Shanghai China Multiscale Porous Materials Center Institute of Advanced Interdisciplinary Studies and School of Chemistry and Chemical Engineering Chongqing University Chongqing China College of Energy Material and Chemistry Inner Mongolia Key Laboratory of Low Carbon Catalysis Inner Mongolia University Hohhot China State Key Lab of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University Shanghai China Center for Next-Generation Energy Materials and School of Chemical Engineering Sungkyunkwan University (SKKU) Seobu-ro Jangan-guGyeonggi-do Suwon South Korea

Stable, nonprecious catalysts are vital for large-scale alkaline water electrolysis. Here, we report a grafted superstructure, MOF@POM, formed by self-assembling a metal-organic framework (MOF) with polyoxometalate (POM). In situ electrochemical transformation converts MOF into active metal (oxy)hydroxides to produce a catalyst with a low overpotential of 178 millivolts at 10 milliamperes per square centimeter in alkaline electrolyte. An anion exchange membrane water electrolyzer incorporating this catalyst achieves 3 amperes per square centimeter at 1.78 volts at 80°C and stable operation at 2 amperes per square centimeter for 5140 hours at room temperature. In situ electrochemical spectroscopy and theoretical studies reveal that the synergistic interactions between metal atoms create a fast electron-transfer channel from catalytic iron and cobalt sites, nickel, and tungsten in the polyoxometalate to the electrode, stabilizing the metal sites and preventing dissolution.

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