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Electrical Characteristics of High-Performance ZnO Field-Effect Transistors Prepared by Ultrasonic Spray Pyrolysis Technique

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Chinese Physics Letters 2011年第1期28卷 179-181页

作者： yi ming-dong XIE Ling-Hai LIU Yu-Yu DAI Yan-Eeng HUANG Jin-ying Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials Nanjing University of Posts and Telecommunications Nanjing 210046 State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Graduate School of the Chinese Academy of Sciences Chinese Academy of Sciences Changchun 130022

We have fabricated ZnO-based thin-film transistors （TFTs） by low-cost ultrasonic spray pyrolysis. The devices exhibit high saturation mobility of about 0. 6 cm2 /Vs and on-off current ratio of 10^5. The electrical characteristics of ZnO-based TFTs show that ultrasonic spray pyrolysis technique can be used as a promising approach to attain high-performance electronic devices. Furthermore, the deposition techniques make the operating process attractive for flexible electronics.

关键词： Electronics and devices Semiconductors Surfaces interfaces and thin films

Simulation study of BESⅢwith stitched CMOS pixel detector using AcTs

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Nuclear Science and Techniques 2023年第12期34卷 264-270页

作者： yi Liu Xiao‑Cong Ai Guang‑Yan Xiao Ya‑Xuan Li Ling‑Hui Wu Liang‑Liang Wang Jia‑Ning dong ming‑yi dong Qing‑Lin Geng Min Luo Yan Niu An‑Qing Wang Chen‑Xu Wang Meng Wang Lei Zhang Liang Zhang Rui‑Kai Zhang Yao Zhang ming‑Gang Zhao Yang Zhou School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China School of Physics Nanjing UniversityNanjing 210093China School of Physics Nankai UniversityTianjin 300071China Institute of High Energy Physics Chinese Academy of Sciences19B Yuquan RoadShijingshan DistrictBeijing 100049China Research Center for Particle Science and Technology Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237China University of Chinese Academy of Sciences 19A Yuquan RoadShijingshan DistrictBeijing 100049China School of Information Science and Engineering Harbin Institute of TechnologyWeihai 264209China

The reconstruction of the tracks of charged particles with high precision is crucial for HEP experiments to achieve their physics *** BESⅢdrift chamber,which is used as the tracking detector of the BESⅢexperiment,has suffered from aging effects resulting in degraded tracking performance after operation for approximately 15 *** preserve and enhance the tracking performance of BESⅢ,one of the proposals is to add one layer of a thin cylindrical CMOS pixel sensor based on state-of-the-art stitching technology between the beam pipe and the drift *** improvement in the tracking performance of BESⅢwith such an additional pixel detector compared to that with only the existing drift chamber was studied using the modern common tracking software Acts,which provides a set of detector-agnostic and highly performant tracking algorithms that have demonstrated promising performance for a few high-energy physics and nuclear physics experiments.

关键词： BESⅢtracking detector CMOS pixel sensor Track reconstruction Common tracking software

Preimplantation genetic diagnosis for Down syndrome pregnancy

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2007年第7期8卷 515-521页

作者： ZHANG Yu XU Chen-ming ZHU yi-min dong Min-yue QIAN Yu-li JIN Fan HUANG He-feng Department of Reproductive Endocrinology Women＇s Hospital School of Medicine Zhejiang University Hangzhou 310006 China

Objective: To evaluate the effect of preimplantation genetic diagnosis (PGD) conducted for women who had Down syndrome pregnancy previously. Methods: Trisomy 21 was diagnosed by using fluorescence in site hybridization (FISH) before embryo transfer in two women who had Down syndrome pregnancies. Each received one or two PGD cycles respectively. Results: Case 1: one PGD cycle was conducted, two oocytes were fertilized and biopsied. One embryo is of trisomy 21 and the other of monosomy 21. No embryo was transferred. Case 2: two PGD cycles were conducted, in total, sixteen oocytes were fertilized and biopsied. Four embryos were tested to be normal, six of trisomy 21, and one of monosomy 21. Five had no signal. Four normal embryos were transferred but no pregnancy resulted. Conclusion: For couples who had pregnancies with Down syndrome pre-viously, PGD can be considered, and has been shown to be an effective strategy.

关键词： Down syndrome Fluorescence in site hybridization (FISH) Preimplantation genetic diagnosis (PGD)

Unipolar Resistive Switching Effects Based on Al/ZnO/P^(++)-Si Diodes for Nonvolatile Memory Applications

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Chinese Physics Letters 2012年第8期29卷 205-208页

作者： SHI Wei TAI Qiang XIA Xian-Hai yi ming-dong XIE Ling-Hai FAN Qu-Li WANG Lian-Hui WEI Ang HUANG Wei Key Laboratory for Organic Electronics&Information Displays and Institute of Advanced Materials Nanjing University of Posts&TelecommunicationsNanjing 210046 Jiangsu-Singapore Joint Research Center for Organic/Bio Electronics&Information Displays Nanjing 210046

Al/ZnO/P^(++)-Si diodes exhibit typical unipolar resistive switching *** electroforming-free characteristics are observed after annealing the ZnO thin film at 400℃ in *** ON/OFF ratios of the resistance are in the range of 104–105 at a very low operation voltage of 0.1 V,and the devices show good endurance characteristics of over 400 cycles with negligible ***,the memory mechanisms of the diodes are proposed on the basis of the current-voltage and resistance-voltage *** results indicate that Al/ZnO/P^(++)-Si devices have potential applications in nonvolatile memory devices.

关键词： diodes Switching resistance

The Role of Fibrinolysis in Adhesive Otitis Media(AOM)

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Journal of Otology 2009年第2期4卷 115-118页

作者： ZOU yi-hui, HUANG De-liang, YANG Shi-ming, HAN dong-yi 1 Department of otolaryngology, PLA General Hospital, No.28 Fu-Xing Road , Beijing 100853 Department of otolaryngology PLA General Hospital No.28 Fu–Xing Road Beijing 100853

Objective To study the effects of Batroxobin on otitis media with effusion(OME), an early stage of Adhesive Otitis Media(AOM), for the purpose of expanding our understanding of the role of fibrinolysis in the pathogenesis of AOM. Method Forty cases of OME(45 ears) were randomly selected to receive intratympanic administration of Dexamethasone at 5 mg/ml(Group 1 or G1), Batroxobin at 1 BU/ml(Group 2 or G2) or Batroxobin at 2 BU/ml (Group 3 or G3). Pre-and post-treatment changes in clinical symptoms, the Air conduction Hearing Threshold (AHT) in pure tone audiometry and average AHT over 0.25 to 2 kHz were compared. Results Data from 31 cases(33 ears) were available for analysis. AHTs among three groups were similar prior to treatment(P > 0.05). The rate of normal hearing following treatment in G3 was 70% or 7 / 10, higher than in G1(41.7% or 5 / 12) and G2 (54.5% or 6 / 11)(P < 0.05). The rate of improvement following treatment was 81.8% or 9/11 and 80.0% or 8 / 10 in G2 and G3, respectively, higher than that in G1(50.0% or 6 / 12)(P < 0.05). Conclusions Therapeutic effects of intratympanic injection of Batroxobin on OME is superior to traditionally used Dexamethasone. In addition, higher concentration of Batroxobin appears to be superior to lower concentrations. These findings confirm that fibrinolysis plays a pivotal role in the pathogenesis of middle ear adhesion and that fibrinolytic medicine can prevent or reduce adhesion development in the middle ear.

关键词： Batroxobin otitis media with effusion adhesive otitis media fibrinolysis

Design of a MAPS readout electronics prototype for BESIII inner tracker

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Radiation Detection Technology and Methods 2020年第2期4卷 241-249页

作者： Xing-cheng Tian Xiao-shan Jiang Jun Hu Qun Ou Yang ming-yi dong Chao-yue Qu Xu-dong Ju Hong-yu Zhang Ye Wu Xiao-xu Lu State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of Sciences(CAS)Beijing 100049China University of Chinese Academy of Sciences(UCAS) Beijing 100049China China Spallation Neutron Source Institute of High Energy PhysicsChinese Academy of Sciences(CAS)Dongguan 523803China

Background The spatial resolution and the reconstruction efficiency of the main drift chamber of the Beijing Spectrometer III has degraded aftermore than nine years of *** improved new inner drift chamber has been constructed to replace the old chamber in case of the radiation *** active pixel sensor(MAPS)based detector prototype is selected as one of the prototype schemes for the inner chamber *** Design a set of MAPS readout electronics system for the inner drift chamber *** system can verify the function and performance of the selected MAPS chip and discover the matters needing attention when designing large-scale *** The electronics system design is composed of three *** first part is flexible printed circuit boards(PCBs)assembled with the MAPS *** second part is digital readout boards,which are connected to the flexible PCBs via FPGA mezzanine card *** digital readout board realizes the configuration of the MAPS chip register,receives and processes the data output by the MAPS chip,and transfers the processed data to the DAQ *** third part includes a readout control board and two fan-out boards that used to separately fan out the trigger signal and the start signal to all the digital readout *** and conclusion AMAPS readout electronics system consisting of five MAPS based detector prototypes is *** system can work stably under the electron beam experimental conditions with a frequency up to 2 kHz and energy ranging from 1 to 5 *** system detection efficiency of the electron beam is∼95%,and the spatial resolution is∼5.3μm at electron energies of 1 *** design of the electronics system meets the requirements for verifying the performance of the MAPS chips and the technical feasibility of the detector structure.

关键词： BESIII MAPS pixel detector JTAG FPGA

添加纳米固体润滑剂的自润滑陶瓷材料高温摩擦磨损性能研究

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人工晶体学报 2014年第9期43卷 2372-2376,2383页

作者：衣明东许崇海肖光春山东大学机械工程学院济南250061 齐鲁工业大学机械与汽车工程学院山东省高校轻工装备先进制造与测控技术重点实验室济南250353

采用真空热压烧结工艺制备了一种添加纳米固体润滑剂CaF2的自润滑陶瓷材料,研究其在室温25℃到600℃环境下与40Cr钢销干摩擦时的摩擦磨损性能。结果表明:自润滑陶瓷材料的摩擦系数与磨损率随环境温度的升高而逐渐降低,600℃时摩擦系数... 详细信息

采用真空热压烧结工艺制备了一种添加纳米固体润滑剂CaF2的自润滑陶瓷材料,研究其在室温25℃到600℃环境下与40Cr钢销干摩擦时的摩擦磨损性能。结果表明:自润滑陶瓷材料的摩擦系数与磨损率随环境温度的升高而逐渐降低,600℃时摩擦系数降低到0.21,磨损率降低到2.4×10-6mm3/N·m。常温下自润滑陶瓷材料的磨损机理是磨粒磨损,高温环境同时存在磨粒磨损和粘着磨损。高温环境下摩擦表面纳米CaF2含量的增加和固体润滑膜的形成是摩擦磨损性能改善的主要原因。

关键词：热压烧结 CaF2 固体润滑剂摩擦系数磨损系数

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氯掺杂甲胺基钙钛矿电池的性能及其改进

物理学报 2022年第20期71卷 258-266页

作者：刘钰雪明逸东吴聪聪湖北大学材料科学与工程学院武汉430062

金属卤化物钙钛矿由于其高吸收系数、长距离载流子扩散长度和可调带隙,近年来在太阳能电池等光电器件中得到了广泛应用,有望实现商业应用.甲胺铅碘(MAPbI_(3))作为一种标准的钙钛矿化合物组分已得到了充分的研究,然而,湿化学法制备的多... 详细信息

金属卤化物钙钛矿由于其高吸收系数、长距离载流子扩散长度和可调带隙,近年来在太阳能电池等光电器件中得到了广泛应用,有望实现商业应用.甲胺铅碘(MAPbI_(3))作为一种标准的钙钛矿化合物组分已得到了充分的研究,然而,湿化学法制备的多晶薄膜由于其低形成能通常会产生较多的晶体缺陷(包含界面和晶界处缺陷),这是导致相变的一个重要原因,因此降低材料中的缺陷密度是提高钙钛矿稳定性的一个重要手段.虽然缺陷钝化是制备高效钙钛矿太阳能电池最常用的方法之一,但是分子钝化基团与钙钛矿晶体之间相对较弱的二次键可能会给实际设备的应用带来困难,特别是在高温、潮湿和紫外线(UV)光等恶劣环境下操作时.另一种策略是通过调控卤化物组成来提高其本征结构稳定性.本文以氯甲胺(MACl)和碘化铅(PbI_(2))作为前驱体通过一步旋涂法制备了两相钙钛矿(MAPbI_(2)Cl).结果表明,氯离子掺杂替代部分碘离子可以更好地诱导钙钛矿结晶,进而稳定MAPbI_(3)晶格.经过Cl掺杂的钙钛矿层表现出更低的缺陷态密度,对比于原始薄膜,Cl的载流子寿命增加了7倍,与此同时,功率转换效率(PCE)和操作稳定性都得到了很大的改善,PCE从11.41%提高到13.68%.器件具有良好的操作稳定性,在最大功率点输出8000 s后并未显示出明显的衰减.本文为制备高效稳定的钙钛矿太阳能电池提供了全新的思路.

关键词：钙钛矿太阳能电池氯掺杂缺陷钝化高稳定性

Gelation and Swelling Behavior of Oxidized Konjac Glucomannan/Chitosan Hydrogel

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Wuhan University Journal of Natural Sciences 2002年第4期7卷 481-485页

作者： He dong bao, Shi Xiao ming, Shi yi, Zhang dong feng College of Resource and Environmental Science, Wuhan University, Wuhan 430072 Hubei, China College of Resource and Environmental Science Wuhan University Wuhan Hubei China

The gelating and swelling mechanisms of the hydrogel formed from oxidized konjac glucomannan (OKGM) and chitosan (CS) were studied by Fourier transform infrared (FT-IR) spectrometry. FT-IR spectra illustrate that the interaction of polysaccharides forms the hydrogen bonds and interchain salt bonds and the dissocation of which dominates the swelling behavior in buffer solutions of different pH. The concentration of salt ion has effect on swelling behavior through the difference of salt ion concentration between in solution and in network of hydrogel, which causes penetrating pressure. Moreover, the Swelling degree and hydrogel strength could be modulated by varying conditions. It is indicated that the hydrogel has pH-sensitive and salt ion sensitive properties. The prepared optimum condition selected by varying conditions is thatr=0.2;t=30 min;T p

关键词： Key Words oxidized konjac glucomannan chitosan hydrogel swelling degree