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Chinese Chemical Letters 2024年第9期35卷 179-182页

作者： Lei Zhou Youjun Zhou lizhen fang Yiqiao Bai Yujia Meng Liang Li Jie Yang Yong Yao School of Chemical and Environmental Engineering Shanghai Institute of TechnologyShanghai 201418China School of Chemistry and Chemical Engineering Nantong City Key Laboratory of Life-Organic ChemistryNantong UniversityNantong 226019China College of Science Nanjing Forestry UniversityNanjing 210037China

Photosynthesis is the process through which living plants utilize photosynthetic pigments,such as chlorophyll,to convert CO_(2)and water into organic compounds and release O_(2)under visible *** this study,we have successfully constructed a fluorescent supramolecular polymer(P5Py_(2)/Zn/Gen)n by employing orthogonal pillar[5]arene-based molecular recognition and metal ion *** the supramolecular polymer,the guest molecule Gen unit acts as a light-harvesting moiety,as the ACQ effect is inhibited by host-guest interactions,while the(Py)_(2)/Zn center serves as a catalytic *** employing this orthogonal self-assembly strategy,we have enhanced the stability of both the donor and acceptor in catalyzing the reduction of p-nitrophenol to ***,this photocatalyst can be reused at least 5 times without significant conversion *** findings provide a pathway for constructing a recyclable artificial LHS that mimics the entire photosynthesis process.

关键词： Pillararenes Light-harvest Supramolecular polymer Photosynthesis Orthogonal self-assembly

Layer-by-layer epitaxy growth of thickness-controllable two-dimensional tungsten disulfide

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Science China(Information Sciences) 2024年第5期67卷 302-310页

作者： Jieyuan LIANG Zixing ZOU Junwu LIANG Di WANG Biao WANG Anshi CHU Jiali YI Cheng ZHANG lizhen fang Tian ZHANG Huawei LIU Xiaoli ZHU Dong LI Anlian PAN Key Laboratory for Micro-Nano Physics and Technology of Hunan Province State Key Laboratory of Chemo/Biosensing and Chemometrics Hunan Institute of Optoelectronic IntegrationCollege of Materials Science and Engineering School of Physics and ElectronicsHunan University School of Electronic Information and Electrical Engineering Changsha University School of Physics and Telecommunication Engineering Yulin Normal University Units Semiconductor Technology Co. Ltd. School of Physics and Electronics Hunan Normal University

Bilayer transition metal dichalcogenides（TMDs） balance the high mobility of single layers with the high state density of multilayers and therefore have promising application prospects in high-performance electronics. However, the layer-controlled growth of 2D materials is still confronted with challenges such as poor repeatability between different labs and a limited understanding of the growth mechanism at the atomic scale. Herein, we report a new carbon-assisted chemical vapor deposition process that can realize the growth of WS2sheets with high yield, precise thickness controllability, and repeatability. We show that carbon can act as a reducing agent and catalyst that preferentially reacts with the WO3precursor to form intermediate WO3-xproducts with low-valence state W. The resulting oxycarbide gas has a low surface adsorption energy when deposited on the surface of as-grown WS2, which provides nucleation sites for the subsequent layer of WS2growth and leads to the vertical growth of WS2sheets. The growth mechanism is thoroughly investigated. Electrical transport measurements show that the produced bilayer WS2possesses a high carrier mobility(up to 58 cm2·V-1·s-1) and small subthreshold swing（estimated to be 148 mV/decade）,which are among the best reported results for TMDs produced using CVD.

关键词： WS2 thickness-controlled growth chemical vapor deposition additive carbon

Controlled growth of vertically stacked In_(2)Se_(3)/WSe_(2) heterostructures for ultrahigh responsivity photodetector

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Nano Research 2024年第3期17卷 1856-1863页

作者： Cheng Zhang Biyuan Zheng Guangcheng Wu Xueying Liu Jiaxin Wu Chengdong Yao Yizhe Wang Zilan Tang Ying Chen lizhen fang Luying Huang Dong Li Shengman Li Anlian Pan Key Laboratory for Micro-Nano Physics and Technology of Hunan Province State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Materials Science and EngineeringHunan UniversityChangsha 410082China

Transition metal dichalcogenides(TMDCs)are promising candidates for future optoelectronic devices accounting for their high carrier mobility and excellent quantum ***,the limited light absorption efficiency in atomically thin layers significantly hinders photocarrier generation,thereby impairing the optoelectronic performance and hindering practical ***,we successfully synthesized In_(2)Se_(3)/WSe_(2) heterostructures through a typical two-step chemical vapor deposition(CVD)*** In_(2)Se_(3) nanosheet with strong light absorption capability,serving as the light absorption layer,was integrated with the monolayer WSe_(2),enhancing the photosensitivity of WSe_(2) *** laser irradiation with a wavelength of 520 nm,the In_(2)Se_(3)/WSe_(2) heterostructure device shows an ultrahigh photoresponsivity with a value as high as 2333.5 A/W and a remarkable detectivity reaching up to 6.7×10^(12) Jones,which is the highest among almost the reported TMDCs-based heterostructures grown via CVD even some fabricated by mechanical exfoliation(ME).Combing the advantages of CVD method such as large scale,high yield,and clean interface,the In_(2)Se_(3)/WSe_(2) heterostructures would provide a novel path for future high-performance optoelectronic device.

关键词： transition metal dichalcogenides(TMDCs) In_(2)Se_(3) heterostructure photodetector ultrahigh responsivity

大数据在农村电商中的精准应用研究——以浙江省杭州市萧山区为例

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中国商论 2024年第4期 30-33页

作者：方丽珍浙江育英职业技术学院浙江杭州310018

在“数商兴农”大背景下,农村电商已成为促进农村经济高质量发展、助推乡村振兴强有力的举措。浙江省杭州市萧山区作为淘宝村百强县,在大数据技术应用、农村电商发展方面极具特色,特别是在资源合理配置、生产过程监管、供应链优化、精... 详细信息

在“数商兴农”大背景下,农村电商已成为促进农村经济高质量发展、助推乡村振兴强有力的举措。浙江省杭州市萧山区作为淘宝村百强县,在大数据技术应用、农村电商发展方面极具特色,特别是在资源合理配置、生产过程监管、供应链优化、精准营销、智能化运营等方面取得显著成效,对其他地区推动大数据指引农村电商发展、进行乡村振兴具有一定的借鉴作用。但是,大数据在萧山区农村电商应用中仍面临很多挑战,如大数据准确性待完善、物流基础设施薄弱、专业人才缺乏、大数据应用待普及等。因此,本文提出政府主导大数据平台建设、构建智慧物流系统、实施人才培养计划、多主体参与大数据应用等助推大数据在农村电商精准应用的对策,以供参考。

关键词：数商兴农大数据农村电商精准应用智慧物流

基于无感知数据采集的高校学生综合评价平台设计

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信息与电脑 2024年第3期36卷 108-110页

作者：房立镇曹鑫玉济南大学山东济南250022

评价学生的综合素质一直都是我国高校深入推进素质教育的重要举措。文章创造性地提出一种基于无感知数据采集的高校学生综合评价平台的设计方案。该平台自下而上分为基础设施接入层、无感知数据采集层、数据分析服务层、综合评价应用层... 详细信息

评价学生的综合素质一直都是我国高校深入推进素质教育的重要举措。文章创造性地提出一种基于无感知数据采集的高校学生综合评价平台的设计方案。该平台自下而上分为基础设施接入层、无感知数据采集层、数据分析服务层、综合评价应用层。利用该平台可以综合评价学生职业素养、学业文化、身心健康等,具有广阔的应用前景。

关键词：无感知数据采集综合评价评价模型

高校实时数仓建设及应用——以济南大学实时数仓为例

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信息与电脑 2024年第10期36卷 112-114页

作者：房立镇曹鑫玉济南大学山东济南250022

随着高校信息化建设的逐渐深入,数据中心在高校数字化发展中发挥着越来越重要的作用。本文以济南大学为例,分析了目前高校在数据中心建设过程中遇到的困难和问题,并基于Flink技术提出了一种实时数仓的建设方案,该方案在保障数据安全和... 详细信息

随着高校信息化建设的逐渐深入,数据中心在高校数字化发展中发挥着越来越重要的作用。本文以济南大学为例,分析了目前高校在数据中心建设过程中遇到的困难和问题,并基于Flink技术提出了一种实时数仓的建设方案,该方案在保障数据安全和合规性的基础上,利用Flink高速计算的特点,实现了以无侵入的方式对接高校各个业务系统,满足了高校各个场景下对于实时数据交换和数据共享的需求,对高校的发展具有重要的实践意义。

关键词：高校信息化建设实时数仓智慧校园数据共享

Epitaxial van der Waals contacts for low schottky barrier MoS_(2) field effect transistors

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Nano Research 2023年第9期16卷 11832-11838页

作者： Huawei Liu lizhen fang Xiaoli Zhu Chenguang Zhu Xingxia Sun Gengzhao Xu Biyuan Zheng Ying Liu Ziyu Luo Hui Wang Chengdong Yao Dong Li Anlian Pan Key Laboratory for Micro-Nano Physics and Technology of Hunan Province State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Materials Science and EngineeringHunan UniversityChangsha 410082China Hunan Institute of Optoelectronic Integration Hunan UniversityChangsha 410082China Suzhou Institute of Nano-tech and Nano-Bionics Chinese Academy of SciencesSuzhou 215123China

Small contact resistance and low Schottky barrier height(SBH)are the keys to energy-efficient electronics and ***-dimensional(2D)semiconductors-based field effect transistors(FETs),holding great promise for next-generation information circuits,still suffer from poor contact quality at the metal–semiconductor junction interface,which severely hinders their further ***,a novel contact strategy is proposed,where Bi_(2)Te_(3)nanosheets with high conductivity were in-situ epitaxially grown on MoS_(2)as van der Waals contacts,which can effectively avoid the damage to MoS_(2)caused during the device manufacturing process,leading to a high-performance MoS_(2)***,the small work function difference between Bi_(2)Te_(3)and MoS_(2)(Bi_(2)Te_(3):4.31 eV,MoS_(2):4.37 eV,measured by Kelvin probe force microscopy(KPFM)),enables small band bending and Ohmic contact at the junction *** characterizations indicate that the MoS_(2)FET device with Bi_(2)Te_(3)contacts possesses a high current on/off ratio(5×107),large effective carrier mobility(90 cm^(2)/(V·s)),and low flat-band SBH(60 meV),which is favorable as compared with MoS_(2)FET with traditional Cr/Au electrodes contacts,and superior to the vast majority of the reported chemical vapor deposition(CVD)MoS_(2)-based FET *** demonstration of epitaxial van der Waals Bi_(2)Te_(3)contacts will facilitate the application of 2D MoS_(2)nanosheet in next-generation low-power consumption electronics and optoelectronics.

关键词： heterojunction van der Waals epitaxial mobility Schottky barrier transistors

Visible light-promoted enantioselective aerobic oxidation of pyrazolones by phase transfer catalysis

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Green Synthesis and Catalysis 2022年第1期3卷 102-109页

作者： Yakun Wang Shuaifei Wang Jie Liu Mingming Lian Yifan Chen Ke Wang Yawei Zhang Tao Zhang lizhen fang School of Pharmacy Xinxiang Medical UniversityXinxiang 453003China Department of Pharmaceutics Daqing CampusHarbin Medical UniversityDaqing 163319China School of Medical Engineering Xinxiang Medical UniversityXinjiang 453003China

An efficient and enantioselective aerobic oxidation of 4-substituted pyrazolones has been developed by phase transfer *** visible light as the driving force and O_(2)(in air)as the oxidant,broad scopes(38 examples)of pyrazolones bearing an oxygen-attached carbon stereocenter at C-4 position were obtained in high yields(up to 98%)and excellent enantioselectivities(up to 93%ee)under mid *** ready availability of catalyst,ease of operation,and low-cost and eco-friendly nature highlighted the practical utility of this visible lightpromoted enantioselective aerobic oxidation.

关键词： Aerobic oxidation Pyrazolone Visible light Phase transfer catalysis Cinchona alkaloid

第三种美学的实践与意义——张曼君导演艺术对现代戏美学建设的贡献

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戏曲研究 2019年第1期 65-78页

作者：方李珍福建省艺术研究院

研究张曼君导演艺术的文章有很多,现代戏歌舞化、形式化、独特性、创造性,舞台意象、音乐形象、结构上的意识流……'三民主义''退一进二',等等;很多聚焦于剧目(主要是现代戏)的艺术特点及形式风格,时见精妙独到之笔墨。

关键词：现代戏张曼君导演艺术

桀骜与狂野——话剧《天苍苍野茫茫》中的李陵形象

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福建艺术 2007年第1期 48-49页

作者：方李珍福建省艺术研究所

周长赋笔下的男性形象，与王仁杰笔下的女性形象，堪称男人与女人中的“极品”，将男人性与女人性渲染到了极致。我们不禁惊诧于他如此“娇小”的身躯竞进射出如此澎湃阔大的力量，幻化成他笔下发散着粗壮、浓烈、傲然的男人气味的人物... 详细信息

周长赋笔下的男性形象，与王仁杰笔下的女性形象，堪称男人与女人中的“极品”，将男人性与女人性渲染到了极致。我们不禁惊诧于他如此“娇小”的身躯竞进射出如此澎湃阔大的力量，幻化成他笔下发散着粗壮、浓烈、傲然的男人气味的人物形象，《沧海争流》如是，《天苍苍野茫茫》亦如是。尽管他所钟爱的形象在道义上不尽完美，甚至于失节，（王仁杰则善于写“失节”的女性），如施琅，如李陵，然而这些人物却不可扼止地散射着耐人寻味的艺术魅力，——他们不是完美、无可挑剔、正儿八经、高大全式的英雄，但又不失奇异的高大，那种于天地间跳荡奔脱、任情任性的骄傲，于转瞬间便轻轻掸弃了人们对他们的怜悯，至多只剩下同情。（当然这怜悯并非悲剧意义上的怜悯。）

关键词：男性形象李陵话剧《沧海争流》女性形象人物形象艺术魅力耐人寻味