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Regulation of nucleation and crystallization for blade-coating large-area CsPbBr_(3)perovskite light-emitting diodes

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Science Bulletin 2025年第2期70卷 212-222页

作者： Guoyi Chen Shuxin Wang Zhiqiu Yu Chaomin Dong peng Jia Dexin pu Kailian Dong Hongsen Cui Hongyi Fang Chen Wang Ruimin Gao Fang Yao Weijun Ke Gang Li Guojia Fang Key Laboratory of Artificial Micro-and Nano-Structures of Ministry of Education School of Physics and TechnologyWuhan UniversityWuhan 430072China School of Mathematics and Statistics Huazhong University of Science and TechnologyWuhan 430074China School of Electronic and Electrical Engineering Wuhan Textile UniversityWuhan 430200China Shenzhen Research Institute Wuhan UniversityShenzhen 518055China Department of Electronic and Information Engineering The Hong Kong Polytechnic UniversityHong Kong 999077China

Metal halide perovskite light-emitting diodes(PeLEDs)and large-area perovskite color conversion layers for liquid crystal display exhibit great potential in the field of illumination and ***-coating method stands out as a highly suitable technique for fabricating large-scale films,albeit with challenges such as uneven nucleation coverage and non-uniformity crystallization *** this work,we developed an in-situ characterization measurement system to monitor the perovskite nucleation,and crystallization *** incorporating formamidine acetate(FAAc)into perovskite precursor solutions,the nucleation rate and nuclei density of perovskite were increased,leading to more uniform *** addition,we inserted a layer of[2-(9H-carbazol-9-yl)ethyl]phosphonic acid above the poly(9-vinylcarbazole)hole transport *** layer acts as an anchor for the perovskite nano-crystal nuclei formed in the precursor,enhancing the steric hindrance of the solute and subsequently slowing down the crystal growth rate,thereby improving crystal *** on these improvements,large-area perovskite nano-polycrystalline films with significantly improved uniformity and enhanced photoluminescence quantum yield were obtained.A small-area PeLED(2 mm×2 mm)with a maximum external quantum efficiency of 25.91%was realized,marking the highest record of PeLED prepared by bladecoating method to *** ultra-large-area PeLED(5 cm×7 cm)was also prepared,which is the largest PeLED prepared by the solution method reported so far.

关键词： Perovskite light-emitting diodes Blade-coating method Large-area LED Nucleation and crystallization regulation

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Growth behavior and electronic regulation of Pt on various Mo-based supports for hydrogen evolution electrocatalysis

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Science China Chemistry 2025年

作者： Lulu Chen Yichao Huang Jiajun Wang Meihong Liao Zhiyuan Liu Meiqi Liu Hanqing Cai Lin Wang Lidong Gao Dawei Hu Lianming zhao Ning pu Zhuangjun Fan State Key Laboratory of Chemical Safety School of Materials Science and Engineering China University of Petroleum (East China) School of Mechanical and Electronic Engineering Qingdao Binhai University Qingdao Chuangqi New Energy Catalysis Technology Co.Ltd. Sinopec Research Institute of Petroleum Processing Co.Ltd. Institute of Energy Hefei Comprehensive National Science Center

Insight into the growth behavior and electronic regulation of platinum （Pt） on various transition metal supports is paramount in developing high-performing electrocatalysts for hydrogen evolution reactions （HER）.Herein,we studied the influence of molybdenum-based supports （MoX,X=C,N,P,and S） on the growth behavior and electronic regulation of *** found that the formation energy variations between Pt single atom and clusters on MoX supports play a pivotal role in the growth behavior of ***,the electronic regulation of Pt induced by metal-support interaction may reflect the valence changes of Pt in Pt-MoX/*** Pt-MoC/C catalyst with a moderate valence state of Pt exhibits the best HER activity with an overpotential of 12.0 mV at 10 mA cm-2and a mass activity of 27.1 A mgPt-1,12.3 times as high as that of commercial 20 wt% Pt/*** work provides constructive guidance for the design of high-performance HER catalysts.

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细针扣刺预处理联合光动力疗法治疗口腔白斑

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北京大学学报(医学版) 2025年第1期57卷 91-96页

作者：韩莹赵璞刘宏伟北京大学口腔医学院·口腔医院口腔黏膜科国家口腔医学中心国家口腔疾病临床医学研究中心口腔生物材料和数字诊疗装备国家工程研究中心国家药品监督管理局口腔材料重点实验室北京100081

目的:探索进行细针扣刺预处理是否能显著提高常规5-氨基酮戊酸(5-aminolevulinic acid,ALA)-光动力疗法(photodynamic therapy,PDT)治疗口腔白斑的效率及其安全性。方法:采用非随机对照临床试验方法,收集就诊于北京大学口腔医院口腔黏膜... 详细信息

目的:探索进行细针扣刺预处理是否能显著提高常规5-氨基酮戊酸(5-aminolevulinic acid,ALA)-光动力疗法(photodynamic therapy,PDT)治疗口腔白斑的效率及其安全性。方法:采用非随机对照临床试验方法,收集就诊于北京大学口腔医院口腔黏膜科,临床及病理均诊断为口腔白斑的患者,将患者分为试验组和对照组。对照组采用传统的ALA-PDT治疗,试验组先在利多卡因表面麻醉下进行细针扣刺预处理,再接受常规ALA-PDT治疗。记录两组患者的临床分型,测量病损面积,评价临床疗效,分析单位面积病损治疗时间和治疗次数等,并通过视觉模拟评分法对患者治疗后的疼痛情况进行评价,对两组的上述数据进行统计学分析。结果:试验组共纳入患者11例,对照组共纳入患者19例。试验组与对照组的病损完全缓解率分别为45.5%和36.8%,部分缓解率分别为54.5%和57.9%,无缓解率分别为0%和5%;总有效率(包括完全缓解及部分缓解)分别为100%和95%,两组间差异无统计学意义(Z=-1.031,P=0.456)。试验组和对照组单位面积病损平均治疗时间分别为(9.05±5.74)min/cm 2和(21.38±15.44)min/cm 2,平均治疗次数分别为(2.36±0.67)次和(3.58±1.57)次,两组间差异均有统计学意义(t=-3.125,P<0.05;t=-2.932,P<0.05)。进一步的多元线性回归分析也再次证实预处理能够显著缩短治疗时间(P<0.05)。此外,两组患者治疗后疼痛评分(视觉模拟评分法)差异无统计学意义,细针扣刺预处理并没有增加ALA-PDT治疗的不良反应。结论:细针扣刺预处理后行常规ALA-PDT对于口腔白斑显示出良好的临床疗效,可以显著缩短临床治疗时间,减少患者就诊次数,节约医疗成本。

关键词：口腔白斑光动力治疗细针扣刺预处理

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Integration of CRISPR screening and proteomic analysis of WDR91 manipulation of endosome-to-cytosol transport of African swine fever virus

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Science China Life Sciences 2025年

作者： Hailong Liu Yilin Guo Zishi Guo Limeng Sun Dagang Tao Xinyun Li Guiqing peng Shuhong zhao Shengsong Xie Key Laboratory of Agricultural Animal Genetics Breeding and Reproduction of Ministry of Education&Key Lab of Swine Genetics and Breeding of Ministry of Agriculture and Rural AffairsHuazhong Agricultural University State Key Laboratory of Agricultural Microbiology College of Veterinary MedicineHuazhong Agricultural University Hubei Hongshan Laboratory Frontiers Science Center for Animal Breeding and Sustainable Production

Dear Editor,African swine fever virus (ASFV) relies heavily on host cellular components for replication, highlighting the complex relationship between the virus and its host(Alcamíet al., 1990). Despite this reliance, the molecular mechanisms governing ASFV infection of host cells remain poorly understood. The low availability of susceptible and permissive cell lines for ASFV replication has hindered research on virus-host interactions, impeding effective antiviral drugs and infection-resistant pig development. Notably, CRISPR screening offers an unbiased and comprehensive method to uncover host factors that are necessary for viral infection,providing a promising avenue for exploring ASFV-host interactions (puschnik et al., 2017).

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Orbitronics for energy-efficient magnetization switching

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Science China(Information Sciences) 2025年第1期68卷 398-399页

作者： Yuxuan YAO Daoqian ZHU Qingtao XIA Jianing LIANG Yuhao JIANG Zhiyang peng Jiaxu LI Chen XIAO Renyou XU Wenwen WANG Xiantao SHANG Shiyang LU Dapeng ZHU Hong-Xi LIU Kaihua CAO Weisheng zhao Fert Beijing Institute School of Integrated Circuit Science and Engineering Beihang University National Key Lab of Spintronics Institute of International Innovation Beihang University Qingdao Research Institute Beihang University Truth Memory Corporation

Spin-orbit torque （SOT）,as a promising writing method for magnetic random-access memory （MRAM）,has garnered widespread interest for over a decade [1].Heavy metals,such as β-W,have been broadly adopted as spin current sources,but suffer from phase change at a limited thickness,resulting in a dramatic reduction of the charge-tospin conversion efficiency θSH[2].The thickness limitation leads to stringent etching conditions and large distribution among devices,posing challenges for simultaneously satisfying SOT efficiency,etching-stop margins,and back-end-ofline （BEOL） compatibility.

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Observation of momentum-induced broadening of width in narrow Feshbach resonances of ultracold~(133)Cs atoms

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Chinese Physics B 2025年第2期34卷 257-260页

作者： Zhennan Liu Hongxing zhao Yunfei Wang Yuqing Li Jizhou Wu Wenliang Liu peng Li Yongming Fu Liantuan Xiao Jie Ma Suotang Jia State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Laser SpectroscopyCollege of Physics and Electronics EngineeringShanxi UniversityTaiyuan 030006China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China College of Physics and Electronic Engineering Shanxi UniversityTaiyuan 030006China

Interactions between atoms in ultracold quantum gases play an important role in the study of the quantum simulation of many-body *** resonance is a versatile tool to control atomic interactions,where the atom-loss spectra are widely used to characterize Feshbach resonances of various atomic ***,we report the experimental observation of momentum-induced broadening of widths in atom-loss spectra of narrow~(133)Cs Feshbach *** drive Bragg excitation to kick the Bose-Einstein condensate of Cs atoms in a cigar-shaped optical trap,and measure the atom-loss spectra of narrow Feshbach resonances of moving ultracold atoms near the magnetic fields 19.84 G and 47.97 *** show that the widths of the atom-loss spectra are broadened for the atoms with the momenta of 2hk,and 4hk,and even observe splitting in the Feshbach resonance of the atoms with momentum *** work may open the way for exploring the interesting physical phenomena arising from the collective velocity of colliding atoms that have been ignored in general.

关键词： Bose–Einstein condensate Feshbach resonances atom-loss spectra

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Efficient chemical mechanical polishing of W promoted by Fenton-like reaction between Cu^(2+)and H_(2)O_(2)

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Transactions of Nonferrous Metals Society of China 2025年第1期35卷 257-270页

作者： Hong-yu CHEN Lin WANG Feng peng Meng-meng SHEN Wei HANG Tufa Habtamu BERI Hui-bin ZHANG Jun zhao Yun-xiao HAN Bing-hai LÜ College of Mechanical Engineering Zhejiang University of TechnologyHangzhou 310023China Key Laboratory of Special purpose Equipment and Advanced Processing Technology Ministry of EducationZhejiang University of TechnologyHangzhou 310023China Adama Science and Technology University Adama 1888Ethiopia College of Materials Science and Engineering Zhejiang University of TechnologyHangzhou 310014China

The Fenton-like reaction between Cu^(2+)and H_(2)O_(2)was employed in chemical mechanical polishing to achieve efficient and high-quality processing of *** microstructure evolution and material removal rate of tungsten during polishing process were investigated via scanning electron microscopy,X-ray photoelectron spectroscopy,ultraviolet−visible spectrophotometry,and electrochemical *** passivation behavior and material removal mechanism were *** show that the use of mixed H_(2)O_(2)+Cu(NO_(3))_(2)oxidant can achieve higher polishing efficiency and surface quality compared with the single oxidant Cu(NO_(3))_(2)or H_(2)O_(2).The increase in material removal rate is attributed to the rapid oxidation of W into WO_(3)via the chemical reaction between the substrate and hydroxyl radicals produced by the Fenton-like *** addition,material removal rate and static etch rate exhibit significantly different dependencies on the concentration of Cu(NO_(3))_(2),while the superior oxidant for achieving the balance between polishing efficiency and surface quality is 0.5 wt.%H_(2)O_(2)+1.0 wt.%Cu(NO_(3))_(2).

关键词： chemical mechanical polishing tungsten Fenton-like reaction hydroxyl radical material removal mechanism

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Development of a transient expression system for Panax ginseng based on protoplast isolation from its embryoids

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Horticultural Plant Journal 2025年第1期11卷 459-462页

作者： Qi Wang Mengyang Zhang Mengxin Han Junbo Rong Wenyue peng Yihan Wang Yulin zhao Xiujuan Lei Jian Zhang Yingping Wang College of Chinese Medicinal Materials Jilin Agricultural UniversityChangchunJilin 130118China Faculty of Agronomy Jilin Agricultural UniversityChangchunJilin 130118China Department of Biology University of British ColumbiaOkanaganBCV6T 1Z4Canada

Panax Ginseng(2n=48)represents a quintessential resource in traditional Chinese medicine,renowned for its outstanding medicinal and economic benefits(Choi,2008).But the late start in analyzing the ginseng genome and the poorly developed genetic transformation system still impede the study of ginseng gene function and the application of molecular *** transformation has the advantages of high efficiency,low cost,and short cycle while laying the foundation for stable genetic transformation(Chen et al.,2021).In the plant transformation process,the cell wall prevents exogenous DNA or protein entry,significantly reducing the efficiency of the ***,as exposed cells wrapped by the plasma membrane,are more likely to absorb exogenous DNA,RNA,and *** systems of protoplasts have been established in several species and applied in many fields,such as gene function research(Gou et al.,2020),gene editing(Yang et al.,2023),and physiological or molecular mechanism research(Aoyagi,2011).For instance,Oryza sativa protoplasts were employed to screen genes involved in rice defense signaling pathways through fluorescent reporter systems,with BiFC employed to verified inter-protein interactions(He et al.,2016).A study transformed Cannabis sativa *** with the plasmids carrying GFP and RFP genes,evaluated the efficiency under different transformation conditions by flow cytometry,and verified the induction of synthetic DR5 promoter by IAA based on the constructed system(Beard et al.,2021).

关键词： transient likely instance

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数字领导力与企业数字化转型绩效——基于制度创业视角

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管理科学学报 2025年第2期28卷 15-30页

作者：赵亚普李晶钰刘德鹏成诗雨南京航空航天大学经济与管理学院香港中文大学商学院山东大学管理学院

数字化转型改变了传统行业的场域规则，企业需要开展制度创业突破已有制度的约束，但已有文献缺乏对企业数字化转型中制度创业过程的研究.本研究基于制度创业理论，利用企业调研数据，考察了数字领导力对企业数字化转型绩效的影响.结果... 详细信息

数字化转型改变了传统行业的场域规则，企业需要开展制度创业突破已有制度的约束，但已有文献缺乏对企业数字化转型中制度创业过程的研究.本研究基于制度创业理论，利用企业调研数据，考察了数字领导力对企业数字化转型绩效的影响.结果显示：数字领导力通过推动制度变革活动对企业数字化转型绩效产生积极影响；信息搜索能力对数字领导力与制度变革活动之间的关系存在着积极的调节作用.研究将制度创业理论引入到数字化转型领域，从新的视角拓宽了企业数字化转型的理论研究，并促进制度创业理论在企业数字化转型情境下的应用和发展，也为企业提升数字化转型绩效提供了新的思路.

关键词：数字领导力制度创业制度变革活动数字化转型绩效信息搜索

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原发于中耳的施奈德乳头状瘤1例

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中华耳鼻咽喉头颈外科杂志 2025年第1期60卷 61-62页

作者：李鹏赵辉顾晓山东第二医科大学临床医学院潍坊261000 临沂市人民医院耳鼻咽喉头颈外科临沂276000

本文报道1例原发于中耳的施奈德乳头状瘤(Schneiderian papilloma,SP)患者,男,58岁,左耳鸣、流脓、听力下降6个月,耳内镜下见左耳鼓膜标志欠清,下方乳头状新生物,纯音测听示左耳重度混合性聋,导抗B型图。全身麻醉下行耳内镜下左鼓室成形... 详细信息

本文报道1例原发于中耳的施奈德乳头状瘤(Schneiderian papilloma,SP)患者,男,58岁,左耳鸣、流脓、听力下降6个月,耳内镜下见左耳鼓膜标志欠清,下方乳头状新生物,纯音测听示左耳重度混合性聋,导抗B型图。全身麻醉下行耳内镜下左鼓室成形术+中耳病损切除术+上鼓室鼓窦开放术,术后确诊SP,术后随访半年,肿瘤无复发,听力明显改善。

关键词：鼓室成形术混合性聋乳头状瘤流脓纯音测听中耳施奈德耳鼓膜

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