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Journal of Energy Chemistry 2021年第11期30卷 459-476,I0010页

作者： Tengling Ye Xiaochen Sun xiaoru zhang Sue Hao Department of Applied Chemistry School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangChina

In recent years, perovskite solar cells (PSCs) have become a much charming photovoltaic technology and have triggered enormous studies worldwide, owing to their high efficiency, low cost and ease of preparation. The power conversion efficiency has rapidly increased by more than 6 times to the current 25.5% in the past decade. Hole transport materials (HTMs) are an indispensable part of PSCs, which great affect the efficiency, the cost and the stability of PSCs. Inorganic Cu-based p-type semiconductors are a kind of representative inorganic HTMs in PSCs due to their unique advantages of rich variety, low cost, excellent hole mobility, adjustable energy levels, good stability, low temperature and scalable processing ability. In this review, the research progress in new materials and the control of photoelectric properties of Cu-based inorganic HTMs were first summarized systematically. And then, concerning different processing methods, advances of the interface engineering of Cu-based hole transport layers (HTLs) in PSCs were detailly discussed. Finally, the challenges and future trends of Cu-based inorganic HTMs and their interface engineering in PSCs were analyzed.

关键词： Perovskite solar cell Inorganic hole transport materials Hole transport layer CuI CuSCN

EM-fMRI:A Promising Method for Mapping the Brain Functional Connectome

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Neuroscience Bulletin 2023年第4期39卷 707-709页

作者： xiaoru zhang Ming Song Jin Li Tianzi Jiang University of the Chinese Academy of Sciences Beijing100049China National Laboratory of Pattern Recognition Institute of Automation Chinese Academy of SciencesBeijing100190China Institute of Automation Chinese Academy of Sciences Brainnetome CenterBeijing100190China CAS Center for Excellence in Brain Science and Intelligence Technology Chinese Academy of SciencesBeijing100190China School of Life and Environmental Sciences Guilin University of Electronic TechnologyGuilin541004China Research Center for Augmented Intelligence Zhejiang LabHangzhou311100China

Electrical microstimulation(EM)can be used to locally stimulate the cerebral cortex or subcortical ***,functional magnetic resonance imaging(fMRI)can noninvasively visualize the activity of the whole *** EM is combined with fMRI(EM-fMRI),it is possible to measure the changes of the whole-brain neural activity using fMRI while applying electrical stimulation to a specific brain site,and accordingly infer the causal links between the stimulated site and the activated brain areas.

关键词： Mapping cerebral fMRI

A novel perylene diimide-based ionene polymer and its mixed cathode interlayer strategy for efficient and stable inverted perovskite solar cells

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Journal of Energy Chemistry 2023年第7期82卷 334-342,I0008页

作者： Daizhe Wang Cong Kang Tengling Ye Dongqing He Shan Jin xiaoru zhang Xiaochen Sun Yong zhang Department of Applied Chemistry School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangChina CAS Key Laboratory of Renewable Energy Guangzhou Institute of Energy ConversionGuangzhou 510640GuangdongChina School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001HeilongjiangChina Institute of Advanced Technology Heilongjiang Academy of SciencesHarbin 150020HeilongjiangChina

Inverted(p-i-n)perovskite solar cells(PerSCs)have attracted much attention owing to their low temperature processability,less hysteresis effect and easy integration as a subunit for the tandem *** unsatisfactory interface contacts and energy level barrier between adjacent interlayers on the cathode side are one of the key challenges for the development of p-i-n ***,perylene diimidebased(PDI)ionene polymer was synthesized and developed as a cathode interlayer(CIL)to enhance interface contact,reduce the energy level barrier and prevent the migration of *** compact PNPDI CIL with high conductivity and appropriate lowest unoccupied molecular orbital(LUMO)level,resulted in a high efficiency device(20.03%),which is higher than the control device with bathophenanthroline(Bphen)(19.48%).Bphen-based CIL shows better adjusting ability of the work function of cathode metal but exhibits poor film-forming ***,the synergistic effect of 1+1>2 can be obtained by combining Bphen and PNPDI into one *** expected,the device performance was further improved by using the mixed CIL of Bphen and PNPDI,and 21.46%power conversion efficiency(PCE)was ***’s more,the compact and hydrophobic mixed CIL dramatically enhanced the resistance to I-ions and moisture,which led to much enhanced device stability.

关键词： Perylene diimide-based polymer Ionene Perovskite solar cells Interface engineeringCathode interlayer

High Strength and Heat Resistance of Low-RE-Containing Mg Alloy Achieved via Substantial Dynamic Precipitates

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Acta Metallurgica Sinica(English Letters) 2024年第11期37卷 1830-1842页

作者： Dongdong zhang Mingyang Chen xiaoru zhang Ke Li Liqing Wang Zhanyong Zhao Peikang Bai Daqing Fang College of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan030024China School of Materials Science and Engineering North University of ChinaTaiyuan030051China State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an710049China

Conventional high-strength Mg-RE-based wrought alloys usually contain a high amount of RE solutes,which largely increases the alloy cost and thus restricts their *** this work,we developed a low-RE-containing Mg-3Sm-1Nd-0.6Zn-0.4Zr alloy by hot extrusion with low extrusion ratio,which shows a high tensile yield strength(TYS)of 435 MPa and a satisfactory elongation of 5.6%at room temperature,outperforming most Mg-Gd-Y-based extrusion alloys with RE contents of 12 wt%at *** high-temperature strength,such as the TYS of 280 MPa at 200℃ and 251 MPa at 250℃,is also obtained in this *** alloy presented a typical bimodal grain structure including coarse hot-worked grains with a strong texture and fine recrystallized grains with random ***,abundant Mg3RE particles were mostly introduced in hot-worked grains and at recrystallized grain boundaries by dynamic precipitation during ***,the high strength of this alloy is principally attributed to the combined hardening effect of numerous Mg_(3)RE particles,fine recrystallized grains,and strongly textural hot-worked grains,rather than the ultra-strong age-hardening effect in traditional high RE-alloyed Mg alloys.

关键词： High strength Mg-RE alloys Dynamic precipitation Heat resistance

Corrosion mechanism of Mg alloys involving elongated long-period stacking ordered phase and intragranular lamellar structure

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Journal of Materials Science & Technology 2023年第20期151卷 190-203页

作者： Jinshu Xie Jinghuai zhang Zhi zhang Zijian Yu Zhihao Xu Ru Wang Daqing Fang Xiaobo zhang xiaoru zhang Ruizhi Wu Key Laboratory of Superlight Material and Surface Technology Ministry of EducationCollege of Materials Science and Chemical EngineeringHarbin Engineering UniversityHarbin 150001China Faculty of Materials and Manufacturing Beijing University of TechnologyBeijing 100124China State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an 710049China Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing Institute of TechnologyNanjing 211167China

It is a long-term challenge to further improve the corrosion resistance while ensuring the strength of magnesium(Mg)*** the effect of potential fluctuation on the micro-galvanic corrosion and the subsequent film formation is important for understanding the corrosion mechanism of Mg alloys with multiple strengthening phases/***,we prepared the high-strength Mg-14.4Er-1.44Zn-0.3Zr(wt.%)alloys containing hybrid structures,i.e.,elongated long-period stacking ordered(LPSO)blocks+intragranular stacking faults(SFs)/LPSO *** Mg alloy with elongated LPSO blocks and intragranular LPSO lamellae(EZ-500 alloy)obtains good corrosion resistance(2.2 mm y^(–1)),while the Mg alloy containing elongated LPSO blocks and intragranular SFs(EZ-400 alloy)shows a significantly higher corrosion rate(6.9 mm y^(–1)).The results of scanning Kelvin probe force microscopy(SKPFM)show the elongated LPSO blocks act as cathode phase(87 mV in EZ-400 alloy),and the SFs serve as the weak anode(30 mV in EZ-400 alloy),resulting in high potential fluctuation in EZ-400 *** the contrary,both elongated blocks and intragranular lamellae are cathodic LPSO phase(67–69 mV)in EZ-500 alloy,leading to a lower potential *** in-situ atomic force microscope(AFM)observation indicates that high potential fluctuation would cause strong micro-galvanic corrosion,and subsequently leads to the failure in rapid formation of corrosion film,finally forming a loose and porous film,while relatively low potential fluctuation could result in more uniform corrosion mode and facilitate the rapid formation of protective ***,we propose that it is an effective way to develop high-strength corrosionresistant Mg alloys by controlling the potential fluctuation to form a“uniform potential”strengthening microstructure。

关键词： Mg alloys Stacking faults LPSO phase SKPFM Quasi in-situ AFM Corrosion behavior Potential fluctuation

Microstructure and yield phenomenon of an extruded Mg-Y-Cu alloy with LPSO phase

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Journal of Rare Earths 2023年第3期41卷 454-461,I0005页

作者： Guangli Bi Niuming zhang Jing Jiang Yuandong Li Tijun Chen Wei Fu xiaoru zhang Daqing Fang Xiangdong Ding State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals Lanzhou University of TechnologyLanzhou 730050China School of Material Science and Engineering Lanzhou University of TechnologyLanzhou 730050China State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong UniversityXi'an 710049China

A yield phenomenon was firstly reported in an extruded Mg-6.8Y-2.5Cu alloy and the corresponding microstructure was also investigated in this work,The cast alloy is mainly composed ofα-Mg,18R long period stacking order(LPSO)phase,eutectic phase(Mg_(20)Cu_(4)Y_(1)),and Mg_(2)Cu *** 18R LPSO phase at the dendritic grain boundary transforms into the 14H LPSO phase in the grain interior during *** extrusion,the grain size of the homogenized alloy is remarkably refined to-3.69μm and the second phase is significantly broken and distributed in the extrusion *** testing curves of the extrude alloy at room temperature indicate that the yield strength and ultimate tensile strength increase while the elongation of the alloy decreases with increasing strain ***,a yield plateau fo rms and gradually decreases with increasing strain *** yield phenomenon is related to the dislocation multiplication and the interaction between the movable dislocations and solute atoms.

关键词： Extruded Mg-6.8Y-2.5Cu alloy Long period stacking order phase Microstructure Yield phenomenon Rare earths

lncRNA NEAT1 is required for splenic erythroid differentiation

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Journal of Genetics and Genomics 2023年第6期50卷 454-457页

作者： xiaoru zhang Yingnan zhang Guangfeng Geng Jie Gao Jingyuan Tong Lihong Shi Jinhua Liu State Key Laboratory of Experimental Hematology National Clinical Research Center for Blood DiseasesHaihe Laboratory of Cell EcosystemInstitute of Hematology&Blood Diseases HospitalChinese Academy of Medical Sciences&Peking Union Medical CollegeTianjin 300020China Tianjin Institutes of Health Science Tianjin 301600China

The erythropoiesis process consists of differentiation stages,starting with erythroid progenitors,including erythroid burstforming unit cells(BFU-Es),erythroid colony-forming unit cells(CFU-Es),followed by terminal erythroid differentiation,which,in turn,gives rise to basophilic erythroblasts,polychromatic erythroblasts,orthochromatic erythroblasts,reticulocytes(RETs),and mature erythrocytes(Hu et al.,2013).

关键词： starting NEAT1 erythroid

The Neural Mechanism of Knowledge Assembly in the Human Brain Inspires Artificial Intelligence Algorithm

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Neuroscience Bulletin 2024年第2期40卷 280-282页

作者： Xiang Ji Wentao Jiang xiaoru zhang Ming Song Shan Yu Tianzi Jiang University of the Chinese Academy of Sciences Beijing 100049China Brainnetome Center Institute of AutomationThe Chinese Academy of SciencesBeijing 100190China Laboratory of Brain Atlas and Brain-inspired Intelligence Institute of AutomationThe Chinese Academy of SciencesBeijing 100190China CAS Center for Excellence in Brain Science and Intelligence Technology The Chinese Academy of SciencesBeijing 100190China Research Center for Augmented Intelligence Zhejiang LabHangzhou 311100China

When new information enters the brain,a human's prior knowledge of the world can change rapidly through a process referred to as"knowledge assembly".Recently,Nelli et *** the neural correlates of knowledge assembly in the human brain using functional ***,inspired by the neural mechanism,the authors developed an artificial neural network algorithm to permit rapid knowledge assembly,improving the flexibility of the system[1].Once again,this research demonstrates that studying how the brain works can lead to better computational algorithms.

关键词： neural knowledge artificial

Association of Sandstone-Type Uranium Mineralization in the Northern China with Tectonic Movements and Hydrocarbons

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Journal of Earth Science 2022年第2期33卷 289-307页

作者： Yin Chen Peisen Miao Jianguo Li Ruoshi Jin Hualei Zhao Lulu Chen CongWang HaoyuYu xiaoru zhang Tianjin Center China Geological SurveyTianjin 300170China Key Laboratory of Uranium Geology China Geological SurveyTianjin 300170China Cores and Samples Center of Natural Resources China Geological SurveyBeijing 100192China National Center of Ocean Standards and Metrology Tianjin 300112China Guangzhou Marine Geological Survey of Natural Resources Guangzhou 510075China Shanghai Municipal Engineering Design Institute Co.LTD. Shanghai 200092China

In the continental basins of Northern China(NC),a series of energy resources commonly co-exist in the same *** the three typical superimposed basins of different genesis in the NC,the Junggar,Ordos,and Songliao basins were chosen as the research *** favorable uraniumbearing structures are generally shown as a basin-margin slope or transition belt of uplifts with the development of faults,which are conducive to a fluid circulation *** Hercynian,Indosinian,and Yanshanian movements resulted in the development of uranium-rich intrusions which acted as the significant uranium *** main hydrocarbon source rocks are developed in the Carboniferous,Permian,Jurassic and *** mature stage of source rocks is concentrated in the Jurassic–Cretaceous,followed by the multi-stage expulsion *** by the India-Eurasian collision and the subduction of the Pacific Plate,the tectonic transformation in the Late Yanshanian and Himalayan periods significantly influenced the sandstone-type uranium *** hydrocarbon reservoirs are spatially consistent with sandstone-type uranium deposits,while the hydrocarbon expulsion events occur in sequence with sandstone-type uranium *** the periphery of the faults or the uplifts,both fluids met and formed uranium *** regional tectonic movements motivate the migration of hydrocarbon fluids and uranium mineralization,especially the Himalayan movement.

关键词： sandstone-type uranium deposits Northern China hydrocarbon reservoirs tectonic evolution fluid ore deposit geology

Enhancement and recovery of photoluminescence and stability by multifunctional etching ligands treatment for perovskite nanocrystals

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Journal of Energy Chemistry 2023年第1期76卷 495-502,I0013页

作者： Yang Zhao Haipeng Zeng Xueqing Cai Yingshan Zhou Yangming Jiang Xin Zheng Lin Li Shujing zhang Long Luo Weixi Li xiaoru zhang Ranran Liu Wenxi Liang Rui Guo Xiong Li Michael Gratzel Center for Mesoscopic Solar Cells Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074HubeiChina State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430073HubeiChina State Key Laboratory of Functions and Applications of Medicinal Plants Guizhou Medical University Guiyang 550014GuizhouChina

Perovskite nanocrystals(PNCs)have recently become promising optoelectronic materials due to their excellent photophysical ***,the highly dynamic binding state between ligands and the surface of PNCs has severely restricted their luminescent properties and *** this work,1,3-bisbenzyl-2-oxoimidazolidine-4,5-dicarboxylic acid(cycle acid,CA)is introduced as both an etchant and a ligand upon post-synthetic surface treatment of *** removing the imperfect octahedrons[Pb X_(6)]^(4-)and passivating the surface defects synergistically,this treatment improves photoluminescence quantum yields from 76%to 95%and enhances the stability of PNCs against polar solvent,moisture,heat,and ***,CA can effectively and instantly recover the luminescence emission for aged *** a result,the CA-Cs Pb Br_(3)PNCs and CA-Cs Pb IxBr_(3-x)PNCs are applied as color-converting layers on a blue LED chip for warm white light-emitting diodes(WLEDs)with a color coordinate of(0.41,0.40).Importantly,the CA-based WLED device exhibits superior stability in operational conditions.

关键词： Perovskite nanocrystals Synergistic effect Emission recovery White light emitting diodes Stability