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Improving the device performances of two-dimensional semiconducting transition metal dichalcogenides: Three strategies

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Frontiers of physics 2022年第6期17卷 35-50页

作者： mo cheng Junbo Yang Xiaohui Li Hui Li Ruofan Du Jianping Shi Jun He The Institute for Advanced Studies Wuhan UniversityWuhan 430072China Key Laboratory of Artificial Micro-and Nano-structures of Ministry of Education School of Physics and TechnologyWuhan UniversityWuhan 430072China

Two-dimensional(2D)semiconductors are emerging as promising candidates for the next-generation *** a type of unique channel materials,2D semiconducting transition metal dichalcogenides(TMDCs),such as moS2 and WS2,exhibit great potential for the state-of-the-art fieldeffect transistors owing to their atomically thin thicknesses,dangling-band free surfaces,and abundant band *** so,the device performances of 2D semiconducting TMDCs are still failing to reach the theoretical values so far,which is attributed to the intrinsic defects,excessive doping,and daunting contacts between electrodes and *** this article,we review the up-to-date three strategies for improving the device performances of 2D semiconducting TMDCs:(i)the controllable synthesis of wafer-scale 2D semiconducting TMDCs single crystals to reduce the evolution of grain boundaries,(ii)the ingenious doping of 2D semiconducting TMDCs to modulate the band structures and suppress the impurity scatterings,and(iii)the optimization design of interfacial contacts between electrodes and channels to reduce the Schottky barrier heights and contact *** the end,the challenges regarding the improvement of device performances of 2D semiconducting TMDCs are highlighted,and the further research directions are also *** believe that this review is comprehensive and insightful for downscaling the electronic devices and extending the moore’s law.

关键词： 2D semiconductor transition metal dichalcogenides waferscale single crystal ingenious doping interfacial contact device performance

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Controlled Syntheses and Multifunctional Applications of Two-Dimensional Metallic Transition Metal Dichalcogenides

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Accounts of Materials Research 2021年第9期2卷 751-763页

作者： Peng Wang Yahuan Huan Pengfei Yang mo cheng Jianping Shi Yanfeng Zhang The Institute for Advanced Studies Wuhan UniversityWuhan 430072China School of Materials Science and Engineering Peking UniversityBeijing 100871China

CONSPECTUS:Among two-dimensional(2D)layered materials,metallic transition metal dichalcogenides(MTMDCs)are emerging as promising candidates in many application aspects(e.g.,electronics,spintronics,and energy related fields,etc.)in view of their ultrahigh electronic conductivities,newfangled room-temperature ferromagnetism(e.g.,VSe_(2),VTe_(2)),and excellent catalytic ***,2D TaX_(2) and VX_(2)(X=S,Se,Te)materials stand in a vital place on account of their exotic physical and chemical ***,the controlled synthesis of such materials is the premise for exploring the aforementioned properties and *** the reported preparation methods,chemical vapor deposition(CVD)is proven to be a promising approach in view of its scalability,simple operation,low cost,*** method has been employed to synthesize various 2D layered materials and heterostructures in a well-controlled ***,in view of the complicated growth mechanism and process,the CVD growth of ultrathin TaX_(2) and VX_(2) nanosheets/films remains extremely *** addition,the application explorations of 2D TaX_(2) and VX_(2) in the energy related fields and electronic devices are still in the primary *** this Account,we review the up-to-date advances regarding the CVD syntheses of 2D TaX_(2) and VX_(2)(e.g.,TaS_(2),TaSe_(2),VS_(2),VSe_(2),and VTe_(2),etc.)and air-stable MTMDCs(e.g.,PtSe2,NiTe2),as well as their multifunctional applications in the energy related fields and electronic ***,the CVD growth of TaX_(2) and VX_(2) nanosheets/films with tunable thicknesses/domain sizes and the MTMDCs/semiconducting TMDCs vertical heterostructures are systematically ***,the application explorations of CVD-synthesized 2D TaX_(2) and VX_(2) as high-performance electrode materials in electrocatalytic hydrogen evolution reaction(HER)and electronic devices are introduced,***,the CVD syntheses of 2D MTMDCs with robust envir

关键词： properties Transition mentioned

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The Role of Advanced Oxidation Protein Products in the Development of Atherosclerosis

The Role of Advanced Oxidation Protein Products in the Devel...

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脂质组学与脂蛋白的新功能——第十二届全国脂质与脂蛋白学术会议

作者：黄竹萍 Zhong-cheng mo 南华大学医学院附属第二医院湖南省衡阳市南华大学附属第二医院 Department of Histology and Embryology University of South China

Advanced oxidation protein products(AOPP)were first identified in chronic uremic patients and mainly derived of oxidation-modified albumin,fibrinogen and *** is not only a novel biomarker of oxidative damage to proteins but also a novel class of mediator of *** can enhance oxidative stress and inflammation,participating in a lot of pathophysiological process of *** is a chronic

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A STUDY ON VOLTAMMETRIC BEHAVIOR OF INDIGO CARMINE AND ITS MIXTURE WITH AMARANTH AT MERCURY FILM ELECTRODE ON SILVER SUBSTRATE

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Chinese Chemical Letters 1991年第12期2卷 945-948页

作者： Shu cheng mo Jian Min NA Jiu Li WANG Guang Zhong YANG Department of Chemical Engineering Beijing Institute of Light Industry Beijing 100037 Department of Chemistry Tianjin University Tianjin 300072

The voltammetric behavior of indigo carmine at mercury film electrode on a silver substrate (MFES) was studied in this paper. It was found that indigo carmine gave a sensitive reduction peak at a potential (Vp) of -0.11 V at pH 4.0 in aqueous solution. The MFES gave good reproducibility and life time. The peak currents (ip) depended lipearly on the concentrations of indigo carmine free 0 to 100 ng/ml. The Vp and Ip of indigo carmine at MFES were independent of the concentrations of amaranth at pH 4.0, the Vp of amaranth was -0.24 V at this pH. The differences of Vp between both colorants enabled to distinguish indigo carmine free amaranth.

关键词： A STUDY ON VOLTAMMETRIC BEHAVIOR OF INDIGO CARMINE AND ITS MIXTURE WITH AMARANTH AT MERCURY FILM ELECTRODE ON SILVER SUBSTRATE than AT rate ITS

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Avidin-biotin system pretargeting radioimmunoimaging and radioimmunotherapy and its application in mouse model of human colon carcinoma

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World Journal of Gastroenterology 2005年第40期11卷 6288-6294页

作者： Gui-Ping Li Hui Zhang cheng-mo Zhu, Jian Zhang Xu-Feng Jiang Departmnent of Nuclear Medicine NanfangHospital Southern Medical University Guangzhou 510515Guangdong Province China Department of Nuclear Medicine Ruijin Hospital Shanghai Second Medical University Shanghai 200025 China

AIM： To evaluate the multi-step pretargeting radioimmunoimaging （RII） and radioimmunotherapy （RTT） in nude mice bearing human colon carcinoma with avidin-biotin system labeled with 153^Sm. METHODS： Two- and three-step strategies for avidinbiotin system pretargeting techniques were established. In a three-step procedure, human colon carcinoma bearing nude mice were first injected with biotinylated monoclonal antibody （McAb-Bt） followed by cold avidin （Av） 48 h later and then 153^Sm-DB2 24 h thereafter; whereas the twostep procedure consisted of injection of 153^Sm-SA 48 h after pretargeting with biotinylated anti-CEA monoclonal antibody （CEA McAb-Bt）. SPECT imaging and biodistribution were performed at 4, 24, 48, or 72 h after injection of 153^Sm-labeled compounds. Five groups of nude mice subcutaneously grafted with human colon carcinoma were treated 3 d after grafting. One group received the injection with 100 μg CEA McAb-Bt followed by cold avidin （80 μg） after 2 d and 11.1 MBCl I53Sm-DB2 after 1 d. Four control groups were treated respectively with 11.1 MBq 153^Sm- CEA McAb, ii.i MBq 153^Sm-nmIgG, ii.i MBq 153^Sm-DB2, 100 μL normal saline. Toxicity was evaluated by changes of leukocyte count, and the efficacy by variation in tumor volume. Histological analyses of tumors were performed. RESULTS： The three-step procedure allowed faster blood clearance and yielded higher tumor blood ratios （5.76 at 4 h and 12.94 at 24 h） of the 153^Sm-DB2. The tumor was clearly visualized at 4 h in y-imaging after the injection of 153^Sm-DB2, while a significant accumulation of 153^Sm-SA in the tumor was observed only 24 h after the injection and tumor blood ratios at 4 and 24 h were 1.00 and 2.03, respectively, in the two-step procedure. Pretargeting RIT and 153^Sm-CEA McAb had a strong tumor-inhibiting *** tumor inhibitory rate was 80.67% and 78.44%, respectively, five weeks after therapy. Histopathological evidence also indicated radioactive damage in tumor tissues as necr

关键词： Radioimmunoimaging Radioimmunotherapy Avidin-biotin Colon carcinoma

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Laboratory verification of the Active Particle-induced X-ray Spectrometer(APXS) on the Chang'e-3 mission

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Research in Astronomy and Astrophysics 2015年第11期15卷 1893-1904页

作者： Guang-Liang Zhang Chun-Lai Li Xiao-Hui Fu Li-Yan Zhang Cao Ban Han Li Yong-Liao Zou Wen-Xi Peng Xing-Zhu Cui cheng-mo Zhang Huan-Yu Wang National Astronomical Observatories Chinese Academy of Sciences Key Laboratory of Lunar and Deep Space Exploration National Astronomical ObservatoriesChinese Academy of Sciences Institute of High Energy Physics Chinese Academy of Sciences

In the Chang＇e-3 mission, the Active Particle-induced X-ray Spectrometer（APXS） on the Yutu rover is used to analyze the chemical composition of lunar soil and rock samples. APXS data are only valid are only if the sensor head gets close to the target and integration time lasts long enough. Therefore, working distance and integration time are the dominant factors that affect APXS results. This study confirms the ability of APXS to detect elements and investigates the effects of distance and time on the measurements. We make use of a backup APXS instrument to determine the chemical composition of both powder and bulk samples under the conditions of different working distances and integration times. The results indicate that APXS can detect seven major elements, including Mg, Al, Si, K, Ca, Ti and Fe under the condition that the working distance is less than 30 mm and having an integration time of 30 min. The statistical deviation is smaller than 15%. This demonstrates the instrument＇s ability to detect major elements in the sample. Our measurements also indicate the increase of integration time could reduce the measurement error of peak area, which is useful for detecting the elements Mg, Al and Si. However, an increase in working distance can result in larger errors in measurement, which significantly affects the detection of the element Mg.

关键词： deviation rock lunar instrument verification backup rover detecting basalt enough

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“后退耕时代”亟待管理制度创新——陕北退耕还林(草)的调查分析

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林业经济问题 2006年第5期26卷 417-420,469页

作者：程默西北农林科技大学经济管理学院陕西杨陵712100

通过对陕北退耕还林(草)区的深入调研发现:以政府为主导的农业产业结构调整在促进农业经济增长方面的作用十分有限,观念落后、技术缺失和农地分散经营等因素是农民增收的主要障碍。“后退耕时代”只有实现管理制度创新,才能保证退耕还林... 详细信息

通过对陕北退耕还林(草)区的深入调研发现:以政府为主导的农业产业结构调整在促进农业经济增长方面的作用十分有限,观念落后、技术缺失和农地分散经营等因素是农民增收的主要障碍。“后退耕时代”只有实现管理制度创新,才能保证退耕还林(草)成果“保得住、不反弹”。

关键词：退耕还林(草) 结构调整制度创新

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Primary Paraganglioma of Seminal Vesicle

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Chinese Medical Journal 2016年第13期129卷 1627-1628页

作者： Chang Liu cheng-Qiang mo Shuang-Jian Jiang Jin-cheng Pan Shao-Peng Qiu Dao-Hu Wang Department of Urology The First Affiliated Hospital Sun Yat-sen University Guangzhou Guangdong 510080 China

To the Editor： Extra-adrenal paragangliomas are tumors that arise from neural crest-derived endocrine cells. They are most frequently found in the organ of Zuckerkandl but can be found anywhere along the sympathetic ... 详细信息

关键词：膀胱副神经节瘤钙调蛋白结合蛋白质类磷蛋白磷酸酶类前列腺神经嵴血气分析肿瘤

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以氧化石墨烯为硬模板合成多级孔MCM-22分子筛（英文）

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人工晶体学报 2016年第2期45卷 546-550页

作者：范素华程谟杰中国科学院大连化学物理研究所洁净能源国家实验室大连116023 中国科学院大学北京100049

为了促进传质,以氧化石墨烯为硬模板对MCM-22分子筛的孔结构进行调整,水热合成具有微孔/介孔/大孔结构的MCM-22分子筛,并利用X射线衍射（XRD）、IR、氮气吸脱附、场发射扫描电子显微镜（FESEM）、透射电镜（TEM）等手段对样品进行表征... 详细信息

为了促进传质,以氧化石墨烯为硬模板对MCM-22分子筛的孔结构进行调整,水热合成具有微孔/介孔/大孔结构的MCM-22分子筛,并利用X射线衍射（XRD）、IR、氮气吸脱附、场发射扫描电子显微镜（FESEM）、透射电镜（TEM）等手段对样品进行表征。结果表明：多级孔MCM-22分子筛中含有大量的非分子筛本身的40~260 nm孔径的介孔/大孔。然后,我们提出了一个简易的多级孔结构的形成机理模型。

关键词： MCM-22 多级孔结构介孔/大孔氧化石墨烯

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抗高温海水微泡沫钻井液实验研究

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钻井液与完井液 2008年第6期25卷 32-35页

作者：张荣莫成孝中海油田服务股份有限公司油田化学事业部

针对渤海油田深部古潜山高温低压地层钻井需要，通过考察起泡剂、稳泡剂和加重剂等主要处理剂以及聚合物加序、pH值对钻井液性能的影响，优选出了抗高温海水微泡沫钻井液配方。该体系使用起泡剂SDP-1和稳泡剂SDP-2，它们的发泡能力强，... 详细信息

针对渤海油田深部古潜山高温低压地层钻井需要，通过考察起泡剂、稳泡剂和加重剂等主要处理剂以及聚合物加序、pH值对钻井液性能的影响，优选出了抗高温海水微泡沫钻井液配方。该体系使用起泡剂SDP-1和稳泡剂SDP-2，它们的发泡能力强，泡沫小，分布均匀，稳定性好，抗污染能力强；加入了特制的加重剂TJ，同时通过适当降低发泡搅拌速度，可使体系密度达到0．6～0．95g／cm^3；引入了高温稳定剂LNW，它使海水微泡沫钻井液的抗温性达150℃，长期稳定性达7d。评价结果表明，该体系的抗温、抗盐、岩屑、海水和油污染能力强，油气层保护效果好。

关键词：微泡沫钻井液海水高温钻井液密度防止地层损害渤海油田

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