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Enhancing the crystallinity and stability of perovskite solar cells with 4-tert-butylpyridine induction for efficiency exceeding 24%

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Journal of Energy Chemistry 2024年第6期93卷 1-7,I0001页

作者： You Liu Lishuang Zheng Kuanxiang Zhang Kun xu Weicheng Xie Jue Zhang Yulu tian tianyuan Liu Hanzhong xu Ruoming Ma Wei Huang Jiahui Chen Jusheng Bao Chen Chen Yongsheng Zhou xuchun Wang Junming Chen Jungan Wang College of Chemistry and Materials Engineering Anhui Science and Technology UniversityBengbu 233000AnhuiChina Anhui Province Quartz Sand Purification and Photovoltaic Glass Engineering Research Center Chuzhou 233100AnhuiChina Triumph Photovoltaic Materials Co.Ltd BengbuAnhuiChina National Laboratory of Solid State Microstructures School of PhysicsNanjing UniversityNanjing 210009JiangsuChina JinkoSolar Holding Co.Ltd HainingZhejiangChina

Perovskite solar cells(PSCs)have emerged as a promising photovoltaic technology because of their high light absorption coefficient,long carrier diffusion distance,and tunable ***,PSCs face challenges such as hysteresis effects and stability *** this study,we introduced a novel approach to improve film crystallization by leveraging 4-tert-butylpyridine(TBP)molecules,thereby enhancing the performance and stability of *** findings demonstrate the effective removal of PbI_(2)from the perovskite surface through strong coordination with TBP ***,by carefully adjusting the concentration of the TBP solution,we achieved enhanced film crystallinity without disrupting the perovskite *** TBP-treated perovskite films exhibit a low defect density,improved crystallinity,and improved carrier *** a result,the PSCs manufactured with TBP treatment achieve power conversion efficiency(PCE)exceeding 24%.Moreover,we obtained the PCE of 21.39%for the 12.25 cm^(2)module.

关键词： 4-tert-butylpyridine Film crystallization Perovskite solar cells Power conversion efficiency Stability improvement

Asymmetric frequency multiplexing topological devices based on a floating edge band

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Photonics Research 2024年第6期12卷 1201-1212页

作者： JIAJUN MA CHUNMEI OUYANG YUTING YANG DONGYANG WANG HONGYI LI LI NIU YI LIU QUAN xu YANFENG LI ZHEN tian JIAGUANG HAN WEILI ZHANG Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering and Key Laboratory of Optoelectronics Information and TechnologyTianjin UniversityTianjin 300072China School of Materials Science and Physics China University of Mining and TechnologyXuzhou 221116China Optoelectronics Research Centre University of SouthamptonSouthampton SO171BJUK Guangxi Key Laboratory of Optoelectronic Information Processing School of Optoelectronic EngineeringGuilin University of Electronic TechnologyGuilin 541004China School of Electrical and Computer Engineering Oklahoma State UniversityStillwaterOklahoma 74078USA

Topological photonics provides a platform for robust energy transport regardless of sharp corners and ***,the frequency multiplexing topological devices have attracted much attention due to the ability to separate optical signals by wavelength and hence the potential application in optical communication *** frequency multiplexing topological devices are generally based on the slow light ***,the resulting static local spatial mode or finely tuned flat band has zero-group velocity,making it difficult for both experimental excitation and channel ***,we propose and experimentally demonstrate an alternative prototype of asymmetric frequency multiplexing devices including a topological rainbow and frequency router based on floating topological edge mode(instead of localized ones);hence the multiple wavelength channels can be collectively excited with a point source and efficiently routed to separate output *** channel separation in our design is achieved by gradually tuning the band gap truncation on a topological edge band over a wide range of frequencies.A crucial feature lies in that the topological edge band is detached from bulk states and floating within the upper and lower photonic band *** interestingly,due to the sandwiched morphology of the edge band,the top and bottom band gaps will each truncate into transport channels that support topological propagation towards opposite directions,and the asymmetrical transportation is realized for the frequency multiplexing topological devices.

关键词： tuning floating hence

Acute modulation of ASIC3 channels by serotonin contributes to peripheral hyperalgesia

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Acute modulation of ASIC3 channels by serotonin contributes ...

Self-supported NiFe-LDH nanosheets on NiMo-based nanorods as high-performance bifunctional electrocatalysts for overall water splitting at industrial-level current densities

中国神经科学学会第九届全国学术会议暨第五次会员代表大会

作者： Xiang WANG,tian-le xu~* Institute of Neuroscience and State Key Laboratory of Neuroscience,Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences,Shanghai 200031,China

＜正＞Acid-sensing ion channels（ASICs） are proton-gated cation channels and are emerging as key sensors for extracellular protons in central and peripheral *** currents mediated by ASICs inactivate rapidly even in the continuous presence of agonist（protons）.Remarkably,type 3 ASIC（ASIC3）,which is predominantly distributed in sensory neurons,responds to mild acidosis（pH 6.8-7.2） with a sustained *** characteristics has been proposed to mediate persistent acidic pain associated with arthritis,muscular ischemia,and *** the present study,we investigated acute modulation of ASIC3-containing channels by various inflammatory mediators in both dorsal root ganglia（DRG） neurons and CHO cells expressing ASIC *** found that serotonin（5-HT）,a classical proinflammatory mediator,specifically enhanced the sustained currents of homomeric ASIC3 and heteromeric ASIC3/1b ***,5-HT directly acts on ASIC3 channels rather than through 5-HT receptors, because specific receptor antagonists did not affect 5-HT *** importantly,mutations at ASIC3（E79A, E79S,E423A and Q269A） completely abolished 5-HT-induced ***,co-application of 5-HT and acetic acid significantly increased pain-related behaviors as assayed in the paw-licking test in mice,which was largely attenuated in ASIC3-deletion mice and inhibited by the nonselective ASICs inhibitor amiloride but not by 5-HT receptor antagonists methysergide and *** together,these data identify ASIC3 channels as a molecular target for rapid actions of 5-HT and reinforce the importance of ASIC3 channels in regulating inflammatory pain.

关键词： acid-sensing ion channel 3 5-HT hyperalgesia

来源： cnki会议评论

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Nano Research 2024年第5期17卷 3769-3776页

作者： Yan Zhang Biao Feng Minglei Yan Zhen Shen Yiqun Chen Jingyi tian Fengfei xu Guanghai Chen Xizhang Wang Lijun Yang Qiang Wu Zheng Hu Key Laboratory of Mesoscopic Chemistry of Ministry of Education(MOE)and Jiangsu Provincial Lab for Nanotechnology School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China College of Water Conservancy and Hydropower Engineering Sichuan Agricultural UniversityYa’an 625014China

Efficient,durable and economic electrocatalysts are crucial for commercializing water electrolysis ***,we report an advanced bifunctional electrocatalyst for alkaline water splitting by growing NiFe-layered double hydroxide(NiFe-LDH)nanosheet arrays on the conductive NiMo-based nanorods deposited on Ni foam to form a three-dimensional(3D)architecture,which exhibits exceptional performances for both hydrogen evolution reaction(HER)and oxygen evolution reaction(OER).In overall water splitting,only the low operation voltages of 1.45/1.61 V are required to reach the current density of 10/500 mA·cm^(-2),and the continuous water splitting at an industrial-level current density of 500 mA·cm^(-2) shows a negligible degradation(1.8%)of the cell voltage over 1000 *** outstanding performance is ascribed to the synergism of the HER-active NiMo-based nanorods and the OER-active NiFe-LDH nanosheet arrays of the hybridized 3D ***,the dense NiFe-LDH nanosheet arrays enhance the local pH on cathode by retarding OH-diffusion and enlarge the electrochemically active surface area on anode,while the conductive NiMo-based nanorods on Ni foam much decrease the charge-transfer resistances of both *** study provides an efficient strategy to explore advanced bifunctional electrocatalysts for overall water splitting by rationally hybridizing HER-and OER-active components.

关键词： alkaline water splitting bifunctional electrocatalysts layered double hydroxides high durability industrial current densities

TiN/Fe_(2)N/C composite with stable and broadband high-temperature microwave absorption

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International Journal of Minerals,Metallurgy and Materials 2024年第11期31卷 2508-2517页

作者： Yahong Zhang Yi Zhang Huimin Liu Dan Li Yibo Wang Chunchao xu Yuping tian Hongjie Meng College of Chemistry and Molecular Sciences Henan UniversityKaifeng 475004China Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province Institute of Surface Micro and Nano MaterialsCollege of Chemical and Materials EngineeringXuchang UniversityXuchang 461000China School of Energy Science and Technology Henan UniversityZhengzhou 450046China

Facing the complex variable high-temperature environment,electromagnetic wave(EMW)absorbing materials maintaining high stability and satisfying absorbing properties is *** study focused on the synthesis and EMW absorbing performance evaluation of TiN/Fe_(2)N/C composite materials,which were prepared using electrostatic spinning followed by a high-temperature nitridation *** TiN/Fe_(2)N/C fibers constructed a well-developed conductive network that generates considerable conduction *** heterogeneous interfaces between different components generated a significant level of interfacial *** to the synergistic effect of stable dielectric loss and optimized impedance matching,the TiN/Fe_(2)N/C composite materials demonstrated excellent and stable absorption performance across a wide temperature range(293-453 K).Moreover,TiN/Fe_(2)N/C-15 achieved a minimum reflection loss(RL)of−48.01 dB and an effective absorption bandwidth(EAB)of 3.64 GHz at 2.1 mm and 373 *** work provides new insights into the development of high-efficiency and stabile EMW absorbing materials under complex variable high-temperature conditions.

关键词： high-temperature impedance matching stable permittivity dielectric loss

A Case of Brucellosis Concomitant with Severe Fever with Thrombocytopenia Syndrome—Weifang City,Shandong Province,China,2023

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China CDC weekly 2024年第27期6卷 677-680页

作者： Qingqing xu Cuiping Wu Hui Liu Chao Geng Jinhui Zhang Dongri Piao Hongyan Zhao Yu Fan Guozhong tian Hai Jiang National Key Laboratory of Intelligent Tracing and Forecasting for Infectious Diseases National Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and PreventionBeijingChina Department of Infectious Diseases Yidu Central Hospital of WeifangWeifang CityShandong ProvinceChina Institute of Bacterial Disease Jinan Center for Disease Control and PreventionJinan CityShandong ProvinceChina Tongliao Center for Disease Control and Prevention Tongliao CityInner Mongolia Autonomous RegionChina

Summary What is already known about this topic?Brucellosis and severe fever with thrombocytopenia syndrome(SFTS)are neglected zoonoses,attributable respectively to Brucella and the SFTS virus(SFTSV).While the incidence of these diseases has been rising,instances of co-infection remain *** is added by this report?This represents the first documented case of a rare coinfection involving Brucella and SFTSV.

关键词： neglected instance Shandong

Discovering Cathodic Biocompatibility for Aqueous Zn–MnO_(2) Battery:An Integrating Biomass Carbon Strategy

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Nano-Micro letters 2024年第6期16卷 111-126页

作者： Wei Lv Zilei Shen xudong Li Jingwen Meng Weijie Yang Fang Ding Xing Ju Feng Ye Yiming Li xuefeng Lyu Miaomiao Wang Yonglan tian Chao xu Institute of Energy Power Innovation North China Electric Power UniversityBeijing 102206People’s Republic of China Department of Power Engineering School of EnergyPower and Mechanical EngineeringNorth China Electric Power UniversityBaoding 071003People’s Republic of China Key Laboratory of RNA Biology Institute of BiophysicsChinese Academy of SciencesBeijing 100101People’s Republic of China Collaborative Innovation Center of Integrated Exploitation of Bayan Obo Multi‑Metal Resources Inner Mongolia University of Science and TechnologyBaotou 014010People’s Republic of China

Developing high-performance aqueous Zn-ion batteries from sustainable biomass becomes increasingly vital for large-scale energy storage in the foreseeable ***,γ-MnO_(2) uniformly loaded on N-doped carbon derived from grapefruit peel is successfully fabricated in this work,and particularly the composite cathode with carbon carrier quality percentage of 20 wt%delivers the specific capacity of 391.2 mAh g^(−1)at 0.1 A g^(−1),outstanding cyclic stability of 92.17%after 3000 cycles at 5 A g^(−1),and remarkable energy density of 553.12 Wh kg^(−1) together with superior coulombic efficiency of~100%.Additionally,the cathodic biosafety is further explored specifically through in vitro cell toxicity experiments,which verifies its tremendous potential in the application of clinical ***,Zinc ion energy storage mechanism of the cathode is mainly discussed from the aspects of Jahn–Teller effect and Mn domains distribution combined with theoretical analysis and experimental ***,a novel perspective of the conversion from biomass waste to biocompatible Mn-based cathode is successfully developed.

关键词： Aqueous Zn-ion batteries Biocompatibility Jahn-Teller effect Mn domains γ-MnO_(2)

Myricetin induces M2 macrophage polarization to alleviate renal tubulointerstitial fibrosis in diabetic nephropathy via PI3K/Akt pathway

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World Journal of Diabetes 2024年第1期15卷 105-125页

作者： Wei-Long xu Pei-Pei Zhou xu Yu Ting tian Jin-Jing Bao Chang-Rong Ni Min Zha Xiao Wu Jiang-Yi Yu Department of Endocrinology Jiangsu Province Hospital of Chinese MedicineThe Affiliated Hospital of Nanjing University of Chinese MedicineNanjing 210000Jiangsu ProvinceChina Department of Pharmacy Jiangsu Province Hospital of Chinese MedicineThe Affiliated Hospital of Nanjing University of Chinese MedicineNanjing 210000Jiangsu ProvinceChina Department of Pneumology Jiangsu Province Hospital of Chinese MedicineThe Affiliated Hospital of Nanjing University of Chinese MedicineNanjing 210000Jiangsu ProvinceChina

BACKGROUND Development of end-stage renal disease is predominantly attributed to diabetic nephropathy(DN).Previous studies have indicated that myricetin possesses the potential to mitigate the pathological alterations observed in renal ***-theless,the precise molecular mechanism through which myricetin influences the progression of DN remains *** To investigate the effects of myricetin on DN and explore its potential therapeutic *** Db/db mice were administered myricetin intragastrically on a daily basis at doses of 50 mg/kg or 100 mg/kg for a duration of 12 ***,blood and urine indexes were assessed,along with examination of renal tissue *** morphology and fibrosis were evaluated using various staining techniques including hematoxylin and eosin,periodic acid–Schiff,Masson’s trichrome,and ***,high-glucose culturing was conducted on the RAW 264.7 cell line,treated with 25 mM myricetin or co-administered with the PI3K/Akt inhibitor LY294002 for a period of 24 *** both in vivo and in vitro settings,quantification of inflammation factor levels was conducted using western blotting,real-time qPCR and *** In db/db mice,administration of myricetin led to a mitigating effect on DN-induced renal dysfunction and ***,we observed a significant reduction in expressions of the kidney injury markers kidney injury molecule-1 and neutrophil gelatinase associated lipocalin,along with a decrease in expressions of inflammatory cytokine-related ***,myricetin treatment effectively inhibited the up-regulation of tumor necrosis factor-alpha,interleukin-6,and interluekin-1βinduced by high glucose in RAW 264.7 ***,myricetin modulated the M1-type polarization of the RAW 264.7 *** docking and bioinformatic analyses revealed Akt as the target of *** protective effect of myricetin was nullified upon blocking the polarization of RAW 264.7 via inh

关键词： Myricetin Diabetic nephropathy PI3K/Akt pathway Renal tubulointerstitial fibrosis Macrophage Polarization

Low friction under ultrahigh contact pressure enabled by self-assembled fluorinated azobenzene layers

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Friction 2024年第7期12卷 1434-1448页

作者： Dandan xuE Zhi xu Linyuan GUO Wendi LUO Liran MA Yu tian Ming MA Qingdao ZENG Ke DENG Wenjing ZHANG Yichun XIA Shizhu WEN Jianbin LUO State Key Laboratory of Tribology in Advanced Equipment Tsinghua UniversityBeijing 100084China National Center for Nanoscience and Technology Beijing 100190China

Extensive efforts have been made to pursue a low-friction state with promising applications in many fields,such as mechanical and biomedical *** which,the load capacity of the low-friction state has been considered to be crucial for industrial ***,we report a low friction under ultrahigh contact pressure by building a novel self-assembled fluorinated azobenzene layer on an atomically smooth highly-oriented pyrolytic graphite(HOPG)*** friction coefficients could be as low as 0.0005 or even lower under a contact pressure of up to 4 *** demonstrates that the low friction under ultrahigh contact pressure is attributed to molecular *** fluorination leads to effective and robust lubrication between the tip and the self-assembled layer and enhances tighter rigidity which can reduce the stress concentration in the substrate,which was verified by density functional theory(DFT)and molecular dynamics(MD)*** work provides a new approach to avoid the failure of ultralow friction coefficient under relatively high contact pressure,which has promising potential application value in the future.

关键词： ultrahigh contact pressure self-assembled layer fluorination robust lubrication