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Comparison of high-resolution ultrasound and mR-enterography in patients with inflammatory bowel disease

World Journal of Gastroenterology 2011年第8期17卷 1018-1025页

作者： Andreas G Schreyer Cynthia m.nzel Chris Friedrich Florian Poschenrieder Lukas Egger Christian Dornia Gabriela Schill Lena m Dendl Doris Schacherer Christl Girlich Ernst-michael jung Ernst-michael jung Institute of Radiology University Medical Center Ernst-michael jung De-partment of Interdisciplinary Ultrasound University Medical Center

AIm:To compare the results of high-resolution ultrasound(HR-US) and magnetic resonance enterography(mRE) exam.nations in patients with inflammatory bowel disease(IBD).mETHODS:The reports of 250 consecutive cases with known IBD,who had an mRE and HR-US exam.nation,were retrospectively *** a patient-based approach we evaluated morphological disease features such as affected bowel wall,stenosis,abscess and *** comparison between the two modalities was based on the hypothesis,that any pathological change described in any imaging modality was a true finding,as no further standard of reference was available for complete ***:Two hundred and fifty exam.nations representing 207 different patients were *** modalities assessed similar bowel wall changes in 65% of the exam.nations,with more US findings in 11% and more mRE findings in 15%.When the reports were analyzed with regard to "bowel wall inflammation",US reported more findings in 2%,while mRE reported more findings in 53%.Stenoses were assessed to be identical in 8%,while US found more in 3% and mRE in 29%(P n,US showed more findings in 2%(n = 4) while mRE detected more in 6%(n = 16).US detected more fistulas in 1%(n = 2),while mRE detected more in 13%(n = 32)(P most comm.n reason for no detected pathology by US was a difficult to assess anatomical region(lesser pelvis,n = 72).COnCLUSIOn:US can miss clinically relevant pathological changes in patients with IBD mostly due to difficulty in assessing certain anatomical regions.

关键词： Crohn’s disease Diagnosis Inflammatory bowel disease magnetic resonance imaging Ultrasound

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碳包覆磁性镍纳米粒子对亚甲基蓝的吸附性能

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材料研究学报 2015年第9期29卷 663-670页

作者：李冉冉黄昊董星龙王永辉于洪涛全燮 jung Youngguan 大连理工大学材料科学与工程学院三束材料改性教育部重点实验室大连116024 大连理工大学环境与生命学院工业生态与环境工程教育部重点实验室大连116024 Departm.nt of mechanical Engineering Kumoh National Institute of Technology

采用直流电弧等离子体法在甲烷气氛中蒸发块体金属镍,原位合成了核/壳型碳包覆镍纳米粒子(ni@C nPs)。在透射电子显微镜下可见明显的包覆结构,以镍单质金属为核心,表面包覆着厚度为3-5 nm的石墨碳层。根据n2吸附等温线计算出BET比表面积... 详细信息

采用直流电弧等离子体法在甲烷气氛中蒸发块体金属镍,原位合成了核/壳型碳包覆镍纳米粒子(ni@C nPs)。在透射电子显微镜下可见明显的包覆结构,以镍单质金属为核心,表面包覆着厚度为3-5 nm的石墨碳层。根据n2吸附等温线计算出BET比表面积为38.82 m2·g-1。用双氧水对其表面进行改性处理,实现了表面含氧官能团的功能化,改善了表面碳的浸润性而提高亲水性,作为吸附剂可用于染料亚甲基蓝的吸附。系统研究了吸附时间、初始浓度和p H值对吸附量的影响。采用准一级和准二级动力学模型研究了动力学,用Langmuir和Freundlich模型拟合分析了吸附等温线。进行了5个循环的吸脱附循环再利用实验,之后收集粉体吸附剂,表明回收率为69.4%。用外加磁场进行的碳包覆镍纳米粒子分离研究的结果表明,用磁分离技术进行吸附剂的回收与再利用是一种简单而高效的方法。

关键词：复合材料碳包覆镍纳米粒子吸附亚甲基蓝磁分离

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East Asian VLBI network observations of active galactic nuclei jets:imaging with KaVA+Tianma+nanshan

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Research in Astronomy and Astrophysics 2021年第8期21卷 220-234页

作者： Yu-Zhu Cui Kazuhiro Hada motoki Kino Bong-Won Sohn Jongho Park Hyun-wook Ro Satoko Sawada-Satoh Wu Jiang Lang Cui mareki Honma Zhi-Qiang Shen Fumie Tazaki Tao An Ilje Cho Guang-Yao Zhao Xiao-Peng Cheng Kotaro niinuma Kiyoaki Wajima Ying-Kang Zhang noriyuki Kawaguchi Juan-Carlos Algaba Shoko Koyama Tomoya Hirota Yoshinori Yonekura nobuyuki Sakai Bo Xia Yong-Bin Jiang Lin-Feng Yu Wei Gou Ju-Yeon Hwang Yong-Chen Jiang Yun-Xia Sun Dong-Kyu jung Hyo-Ryoung Kim Jeong-Sook Kim Hideyuki Kobayashi Jee-Won Lee Jeong-Ae Lee Hua Zhang Guang-Hui Li Zhi-Qiang Xu Peng Li jung-Hwan Oh Se-Jin Oh Chung-Sik Oh Tomoaki Oyama Duk-Gyoo Roh Katsunori-m.Shibata Wen Guo Rong-Bing Zhao Wei-Ye Zhong Jin-Qing Wang Wen-Jun Yang Hao Yan Jae-Hwan Yeom Bin Li Xiao-Fei Li Jian-Ping Yuan Jian Dong Zhong Chen Kazunori Akiyama Keiichi Asada Do-Young Byun Yoshiaki Hagiwara Jeffrey Hodgson Tae-Hyun jung Kee-Tae Kim Sang-Sung Lee Kunwoo Yi Qing-Hui Liu Xiang Liu Ru-Sen Lu masanori nakamura Sascha Trippe na Wang Xue-Zheng Wang Bo Zhang Departm.nt of Astronomical Science The Graduate University for Advanced StudiesSOKENDAI2-21-1 OsawaMitakaTokyo 181-8588Japan mizusawa VLBI Observatory National Astronomical Observatory of Japan2-12 HoshigaokaMizusawaOshuIwate 023-0861Japan Kogakuin University of Technology and Engineering Academic Support Center2665-1 NakanoHachiojiTokyo 192-0015Japan Korea Astronomy and Space Science Institute Yuseong-guDaejeon 34055Korea Departm.nt of Astronomy Yonsei University50 Yonsei-roSeodaemun-guSeoul 03722Korea Departm.nt of Astronomy and Space Science University of Science and Technology217 Gajeong-roDaejeonKorea Institute of Astronomy and Astrophysics Academia Sinica645 N Aohoku PIHiloHI 96720USA Graduate School of Sciences and Technology for Innovation Yamaguchi UniversityYoshida 1677-1YamaguchiYamaguchi 753-8512Japan Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China Key Laboratory of Radio Astronomy Chinese Academy of SciencesNanjing 210008China Institute of Astronomy The University of Tokyo2-21-1 OsawaMitakaTokyo 181-0015Japan Instituto de Astrofísica de Andalucía-CSIC Glorieta de la Astronomia s/nGranada E-18008Spain Departm.nt of Physics Faculty of ScienceUniversity of MalayaKuala Lumpur 50603Malaysia Center for Astronomy Ibaraki University2-1-1 BunkyoMitoIbaraki 310-8512Japan Space Light Laboratory 77Yangjaedae-ro 86 roadGangdong-guSeoulKorea massachusetts Institute of Technology Haystack Observatory 99 Millstone RoadWestfordMA 01886USA national Radio Astronomy Observatory 520 Edgemont RdCharlottesvilleVA 22903USA Toyo University 5-28-20 HakusanBunkyo-kuTokyo 112-8606Japan Departm.nt of Physics and Astronomy Seoul National UniversityGwanak-guSeoul 08826Korea max Planck Institute for Radio Astronomy Auf dem hiigel 69Bonn 53121Germany SnU Astronomy Research Center Seoul National UniversityGwanak-guSeoul 08826Korea

The East Asian Very Long Baseline Interferometry(VLBI) network(EAVn) is a rapidly evolving international VLBI array that is currently promoted under joint efforts am.ng China,Japan and *** aims at form.ng a joint VLBI network by combining a large number of radio telescopes distributed over East Asian *** the combination of the Korean VLBI network(KVn) and the VLBI Exploration of Radio Astrometry(VERA) into Ka VA,further expansion with the joint array in East Asia is actively *** we report the first imaging results(at 22 and 43 GHz) of bright radio sources obtained with Ka VA connected to Tianma 65-m and nanshan 26-m Radio Telescopes in *** test the EAVn imaging perform.nce for different sources,we observed four active galactic nuclei(AGn) having different brightness and *** a result,we confirmed that the Tianma 65-m Radio Telescope(TmRT) significantly enhances the overall array sensitivity,a factor of 4 improvem.nt in baseline sensitivity and 2 in image dynamic range compared to the case of Ka VA *** addition of the nanshan 26-m Radio Telescope(nSRT) further doubled the east-west angular *** the resulting high-dynamic-range,high-resolution images with EAVn(Ka VA+TmRT+nSRT),various fine-scale structures in our targets,such as the counter-jet in m87,a kink-like morphology of the 3 C 273 jet and the weak emission in other sources are successfully *** dem.nstrates the powerful capability of EAVn to study AGn jets and to achieve other science goals in *** expansion of EAVn will further enhance the angular resolution,detection sensitivity and frequency coverage of the network.

关键词： galaxies:active galaxies:jets instrum.ntation:interferometers radio continuum:galaxies

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Current Status and Future Challenges of Weather Radar Polarimetry: Bridging the Gap between Radar meteorology/Hydrology/Engineering and numerical Weather Prediction

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Advances in Atmospheric Sciences 2019年第6期36卷 571-588页

作者： Guifu ZHAnG Vivek n.mAHALE Bryan J.PUTnAm Youcun QI Qing CAO AnDrew D.BYRD Petar BUKOVCIC Dusan S.ZRnIC Jidong GAO m.ng XUE Youngsun jung Heather D.REEVES Pamela L.HEInSELm.n AlexAnDer RYZHKOV Robert D.PALmER Pengfei ZHAnG mark WEBER Greg m.mCFARQUHAR Berrien mOORE III Yan ZHAnG Jian ZHAnG J.VIVEKAnAnDAn Yasser AL-RASHID Richard L.ICE Daniel S.BERKOWITZ Chong-chi TOnG Caleb FULTOn Richard J.DOVIAK University of Oklahoma nOAA/national Weather Service Enterprise Electronics Corporation nOAA/national Severe Storms Laboratory national Center for Atmospheric Research Raytheon Company Radar Operations Center

After decades of research and developm.nt, the WSR-88 D(nEXRAD) network in the United States was upgraded with dual-polarization capability, providing polarimetric radar data(PRD) that have the potential to improve weather observations,quantification, forecasting, and warnings. The weather radar networks in China and other countries are also being upgraded with dual-polarization capability. now, with radar polarimetry technology having matured, and PRD available both nationally and globally, it is important to understand the current status and future challenges and opportunities. The potential impact of PRD has been limited by their oftentimes subjective and empirical use. more importantly, the comm.nity has not begun to regularly derive from PRD the state parameters, such as water mixing ratios and number concentrations, used in numerical weather prediction(nWP) *** this review, we summarize the current status of weather radar polarimetry, discuss the issues and limitations of PRD usage, and explore potential approaches to more efficiently use PRD for quantitative precipitation estimation and forecasting based on statistical retrieval with physical constraints where prior information is used and observation error is included. This approach aligns the observation-based retrievals favored by the radar meteorology comm.nity with the model-based analysis of the nWP comm.nity. We also exam.ne the challenges and opportunities of polarimetric phased array radar research and developm.nt for future weather observation.

关键词： weather radar polarimetry radar meteorology numerical weather prediction data assimilation microphysics parameterization forward operator

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CsPbBr3 perovskite quantum-dot paper exhibiting a highest 3 dB bandwidth and realizing a flexible white-light system for visible-light comm.nication

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Photonics Research 2021年第12期9卷 2341-2350页

作者： KOnTHOUJAm JAmES SInGH XIAOTOnG FAn AnnADA SAnKAR SADHU CHUn-HO LIn FAnG-JYUn LIOU TInGZHU WU YU-jung LU JR-HAU HE ZHOnG CHEn TOm WU HAO-CHUnG KUO Departm.nt of Photonics&Institute of Electro-Optical Engineering College of Electrical and Computer EngineeringNational Yang Ming Chiao Tung UniversityHsinchu 30010Taiwan International Ph.D.Program in Photonics(UST) College of Electrical and Computer EngineeringNational Yang Ming Chiao Tung UniversityHsinchu 30010Taiwan Departm.nt of Electronic Science Fujian Engineering Research Center for Solid-State LightingXiamen UniversityXiamen 361005China School of materials Science and Engineering University of New South WalesSydneyNSW 2052Australia Research Center for Applied Sciences Academia SinicaTaipei 11529Taiwan Departm.nt of materials Science and Engineering City University of Hong KongKowloon TongHong KongChina

We propose a flexible white-light system for high-speed visible-light comm.nication(VLC)applications,which consists of a semipolar blue InGan/Gan single-quantum-well micro-light-emitting diode(LED)on a flexible substrate pumping green CsPbBr3 perovskite quantum-dot(PQD)paper in nanostructure form and red CdSe QD *** highest bandwidth for CsPbBr3 PQD paper,229 mHz,is achieved with a blue micro-LED pumping source and a high data transmission rate of 400 mbps;this is very promising for VLC *** 817 mHz maximum bandwidth and a 1.5 Gbps transmission speed are attained by the proposed semipolar blue *** proposed flexible white light system and the high-bandwidth PQD paper could pave the way for VLC wearable devices.

关键词： pumping comm.nication quantum

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Highly efficient blue organic light-emitting diodes using various hole and electron confinem.nt layers

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Chinese Optics Letters 2015年第3期13卷 72-75页

作者： Jin Sung Kang Ju-An Yoon Seung Il Yoo Jin wook Kim Bo mi Lee Hyeong Hwa Yu C.-B.moon Woo Young Kim Departm.nt of Green Energy and Semiconductor Engineering Hoseo University Departm.nt of Engineering Physics Mc Master University

In this Letter, blue phosphorescence organic light-emitting diodes （PHOLEDs） employ structures for electron and/or hole confinem.nt; 1,3,5-tris（n-phenylbenzimiazole-2-yl）benzene is used as a hole confinem.nt layer and tris-（phenylpyrazole）iridium [Ir（ppz）3] is utilized for an electron confinem.nt layer （ECL）. The electrical and optical properties of the fabricated blue PHOLEDs with various carrier-confinem.nt structures are analyzed. Structures with a large ehergy offset between the carrier confinem.nt and emitting layers enhance the charge-carrier balance in the emitting region, resulting from the effective carrier confinem.nt. The maximum external quantum efficiency of the blue PHOLEDs with the double-ECLs is 24.02% at 1500 cd/m^2 and its lum.nous efficiency is 43.76 cd/A, which is 70.47% improved compared to the device without a carrier-confinem.nt layer.

关键词： blue Highly efficient blue organic light-emitting diodes using various hole and electron confinem.nt layers OLEDs EmL ECL

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Direct laser writing of volumetric gradient index lenses and waveguides

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Light(Science & Applications) 2020年第1期9卷 89-102页

作者： Christian R.Ocier Corey A.Richards Daniel A.Bacon-Brown Qing Ding Ram.n Kumar Tanner J.Garcia Jorik van de Groep jung-Hwan Song Austin J.Cyphersmith Andrew Rhode Andrea n.Perry Alexander J.Littlefield Jinlong Zhu Dajie Xie Haibo Gao Jonah F.messinger mark L.Brongersma Kim.ni C.Toussaint Jr Lynford L.Goddard Paul V.Braun Departm.nt of materials Science and Engineering University of Illinois at Urbana-ChampaignUrbanaILUSA materials Research Laboratory University of Illinois at Urbana-ChampaignUrbanaILUSA Beckm.n Institute for Advanced Science and Technology University of Illinois at Urbana-ChampaignUrbanaILUSA Departm.nt of Electrical and Computer Engineering University of Illinois at Urbana-ChampaignUrbanaILUSA Departm.nt of materials Science and Engineering Stanford UniversityStanfordCAUSA Carl R.Woese Institute for Genomic Biology University of Illinois at Urbana-ChampaignUrbanaILUSA Departm.nt of mechanical Science and Engineering University of Illinois at Urbana-ChampaignUrbanaILUSA

Direct laser writing(DLW)has been shown to render 3D polymeric optical components,including lenses,beam expanders,and mirrors,with submicrometer ***,these printed structures are limited to the refractive index and dispersive properties of the ***,we present the subsurface controllable refractive index via beam exposure(SCRIBE)method,a lithographic approach that enables the tuning of the refractive index over a range of greater than 0.3 by perform.ng DLW inside photoresist-filled nanoporous silicon and silica *** the laser exposure during printing enables 3D submicron control of the polymer infilling and thus the refractive index and chromatic *** SCRIBE’s unprecedented index range and 3D writing accuracy has realized the world’s smallest(15μm diameter)spherical Luneburg lens operating at visible ***’s ability to tune the chromatic dispersion alongside the refractive index was leveraged to render achromatic doublets in a single printing step,elim.nating the need for multiple photoresins and writing *** also has the potential to form multicomponent optics by cascading optical elem.nts within a *** a dem.nstration,stacked focusing structures that generate photonic nanojets were fabricated inside porous ***,an all-pass ring resonator was coupled to a subsurface 3D *** measured quality factor of 4600 at 1550 nm suggests the possibility of compact photonic systems with optical interconnects that traverse multiple *** is uniquely suited for constructing such photonic integrated circuits due to its ability to integrate multiple optical components,including lenses and waveguides,without additional printed supports.

关键词： index refractive render

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The apple REFPOP—a reference population for genomics-assisted breeding in apple

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Horticulture Research 2020年第1期7卷 364-379页

作者： michaela jung morgane Roth maria JoséAranzana Annemarie Auwerkerken marco Bink Caroline Denancé Christian Dujak Charles-Eric Durel Carolina Font i Forcada Celia m.Cantin Walter Guerra nicholas P.Howard Beat Keller mariusz Lewandowski matthew Ordidge marijn Rym.nants nadia Sanin Bruno Studer Edward Zurawicz François Laurens Andrea Patocchi Hélène muranty molecular Plant Breeding Institute of Agricultural SciencesETH Zurich8092 ZurichSwitzerland Breeding Research group Agroscope 8820 WädenswilSwitzerland IRTA(Institut de Recerca i Tecnologia Agroalim.ntàries) 08140 Caldes de MontbuiBarcelonaSpain Centre for Research in Agricultural Genomics(CRAG)CSIC-IRTA-UAB-UB Campus UAB08193 BellaterraBarcelonaSpain Better3fruit n.V. 3202 RillaarBelgium Biometris Wageningen University and Research6708 PB WageningenThe Netherlands Hendrix Genetics Research Technology and Services B.V.PO Box 1145830AC BoxmeerThe Netherlands IRHS Universitéd’AngersINRAEInstitut AgroSFR 4207 QuaSaV49071 BeaucouzéFrance ARAID(Fundación Aragonesa para la Investigación y el Desarrollo) 50018 ZaragozaSpain Research Centre Laimburg 39040 AuerItaly Departm.nt of Horticultural Science University of MinnesotaSt.PaulMN 55108USA Institute of Biology and Environm.ntal Sciences University of Oldenburg26129 OldenburgGermany Research Institute of Horticulture 96-100 SkierniewicePoland School of Agriculture Policy and DevelopmentUniversity of ReadingWhiteknights RG66AR ReadingUK Laboratory for Plant Genetics and Crop Improvem.nt KU Leuven B-3001 LeuvenBelgium GAFL INRAE84140 MontfavetFrance

Breeding of apple is a long-term and costly process due to the time and space requirem.nts for screening selection ***-assisted breeding utilizes genomic and phenotypic information to increase the selection efficiency in breeding programs,and measurem.nts of phenotypes in different environm.nts can facilitate the application of the approach under various climatic *** we present an apple reference population:the apple REFPOP,a large collection formed of 534 genotypes planted in six European countries,as a unique tool to accelerate apple *** population consisted of 269 accessions and 265 progeny from 27 parental combinations,representing the diversity in cultivated apple and current European breeding material,respectively.A high-density genome-wide dataset of 303,239 SnPs was produced as a combined output of two SnP arrays of different densities using marker imputation with an imputation accuracy of *** on the genotypic data,linkage disequilibrium was low and population structure was *** well-studied phenological traits of horticultural importance were *** found marker–trait associations in several previously identified genomic regions and maximum predictive abilities of 0.57 and 0.75 for floral emergence and harvest date,*** decreasing SnP density,the detection of significant marker–trait associations varied depending on trait *** of the trait,10,000 SnPs sufficed to maximize genomic prediction *** confirm the suitability of the apple REFPOP design for genomics-assisted breeding,especially for breeding programs using related germplasm,and emphasize the advantages of a coordinated and multinational effort for customizing apple breeding methods in the genomics era.

关键词： breeding planted utilize

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三药固定剂量复方制剂的利福平相对生物利用度

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国际结核病与肺部疾病杂志 2011年第2期6卷 85-90页

作者： R.C.milán-Segovia A.m.Dom.nguez-Ramírez H.jung-Cook m.magaa-Aquino m.C.Romero-m.ndez S.E.medellín-Garibay m.Vigna-Pérez S.Rom.no-moreno 金海霞 Universidad Autónoma metropolitana Unidad XochimilcoMexico DF Facultad de Ciencias Químicas Universidad Autónoma de San Luís PotosíSan Luis Potosí Facultad de Química Universidad Nacional Autónoma de MéxicoMexico City Hospital Central 'Dr Ignacio morones Prieto' Secretaría de Salud San Luis PotosíMexico Facultad de Ciencias Químicas Universidad Autónoma de San Luís PotosíSan Luis Potosí

背景:先前的一个利福平(RmP)监测性研究显示,结核病(TB)患者在使用常规的3药固定剂量复方制剂(3FDC)治疗时,RmP浓度很低。因此,我们对该制剂的生物利用度进行研究。目的:利用健康志愿者研究墨西哥卫生保健系统中常规使用的3FDC制剂相对... 详细信息

背景:先前的一个利福平(RmP)监测性研究显示,结核病(TB)患者在使用常规的3药固定剂量复方制剂(3FDC)治疗时,RmP浓度很低。因此,我们对该制剂的生物利用度进行研究。目的:利用健康志愿者研究墨西哥卫生保健系统中常规使用的3FDC制剂相对于参比制剂的RmP相对生物利用度。设计:两周期、两序列的交叉研究。结果:受试制剂和参比制剂的药代动力学参数均值如下:达峰浓度(Cmax)分别为3.13±2.01μg/ml和9.95±2.66μg/ml;对于血药浓度-时间曲线下面积(AUC),零到最后实测浓度的AUC(AUC0-12 h)分别为15.51±9.77μg.h/ml和58.03±16.1μg.h/ml,零到无限大时间的AUC(AUC0-∞)分别为17.92±10.66μg.h/ml和68.43±22.39μg.h/ml。Cmax的受试/参比均值比(90%CI)为25.36%(17.33~37.10);AUC0-12 h为21.25%(14.61~30.89);AUC0-∞为22.08%(15.44~31.56)。这些结果不符合生物等效性标准。结论:受试制剂与参比制剂相比,显示吸收延迟和RmP生物利用度明显偏低...

关键词：相对生物利用度利福平固定剂量复方

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Effective n-methyl-2-pyrrolidone wet cleaning for fabricating highperform.nce m.nolayer moS2 transistors

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nano Research 2019年第2期12卷 303-308页

作者： Po-Chun Chen Chih-Pin Lin Chuan-Jie Hong Chih-Hao Yang Yun-Yan Lin m.ng-Yang Li Lain-Jong Li Tung-Yuan Yu Chun-jung Su Kai-Shin Li Yuan-Liang Zhong Tuo-Hung Hou Yann-Wen Lan Departm.nt of Physics "National Taiwan Normal University" Taipei 11677 Taiwan China Departm.nt of Electronics Engineering and Institute of Electronics "National Chiao Tung University' Hsinchu 30010 Taiwan China Departm.nt of Physics and Center for nanotechnology Chung Yuan Christian University Chungli 32023 Taiwan China Research Center for Applied Sciences Academia Siriica: Taipei 11529 Taiwan China Physical Sci. and Eng. King Abdullah University of Sci.and Technology Thuwal 23955 Kingdom of Saudi Arabia "national nano Device Laboratories:"national Applied Research Laboratories" Hsinchu 30078 Taiwan China

Two-dim.nsional semiconductors,such as moS2 are known to be highly susceptible to diverse molecular adsorbates on the surface during fabrication,which could adversely affect device *** ensure high device yield,uniformity and perform.nce,the semiconductor industry has long employed wet chemical cleaning strategies to remove undesirable surface contam.nations,adsorbates,and native oxides from the surface of Si wafers.A similarly effective surface cleaning technique for two-dim.nsional materials has not yet been fully *** this study,we propose a wet chemical cleaning strategy for moS2 by using *** cleaning process not only preserves the intrinsic properties of m.nolayer moS2,but also significantly improves the perform.nce of m.nolayer moS2 *** device on current of 12 μA·μm-1 for a channel length of 400 nm,contact resistance of 15 kΩ·μm,field-effect mobility of 15.5 cm^2·V^-1·s^-1,and the average on-off current ratio of 10^8 were successfully dem.nstrated.

关键词： m.nolayer m0S2 devices standard wet cleaning field-effect transistors n-methyl-2-pyrrolidone

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