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Higher Harmonic in Free Electron Laser with Combined Electromagnetic Wiggler and Axial Guide Magnetic Fields

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Chinese Physics Letters 1992年第5期9卷 236-239页

作者： LU Bo yu junsheng LIU Shenggang Institute of High Energy Electronics University of Electronic Science and Technology of ChinaChengdu 610054 Present address:Southwestern Institute of Physics Chengdu 610041

Following a single-particle approach,a detailed analysis of the higher harmonic in free electron laser(FEL)with combined electromagnetic wiggler and axial guide magnetic fields is *** spontaneous emission spectrum and the gain in the low-gain Compton regime are also calculated in *** analysis results in a clear resonance condition and shows that this kind of FEL can generate significant coherent harmonic emission of radiation with axial guide magnetic field of suitable strength.

关键词： harmonic Electron Electromagnetic

Properties of non-doped organic light-emitting devices based on an ultrathin iridium complex phosphor layer

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Frontiers of Optoelectronics 2010年第4期3卷 413-417页

作者： Juan ZHAO junsheng yu Wen WEN Yadong JIANG State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic InformationUniversity of Electronic Science and Technology of China

Organic light-emitting devices（OLEDs） were constructed with a structure of indium tin oxide（ITO）/N,N'-bis（naphthalen-1-yl）-N,N'-bis（phenyl）-benzidine（NPB）(50-x nm)/bis [2-（4-tertbutylphenyl）benzothiazolato-N,C2'] iridium（acetylacetonate） [（t-bt）2Ir（acac）]（d nm）/NPB（x nm）/2,2',2"（1,3,5-benzenetriyl）tris-（1-phenyl-1H-benzimidazole）(TPBI)（30nm）/Mg:Ag（200 nm）.A thin blue emission material of NPB was used as a separating layer,and the（t-bt）2Ir（acac） yellow phosphorescent dye was acted as an ultrathin light-emitting *** acted as both hole-blocking and electron-transporting *** changing the location（x） and the thickness（d） of the phosphor dye,the variation of device performance were *** results showed that all the devices had a turn-on voltage of 2.8 V. In the case of d=0.2nm and x=5nm,the OLED had a maximum luminance of 18367 cd/m2 and a maximum power efficiency of 5.3 lm/*** high performance is attributed to both direct charge carrier trapping of iridium phosphor dye and the thin NPB separation layer,which effectively confines the recombination zone of charge carriers.

关键词： organic light-emitting devices (OLEDs) iridium complex phosphor dye ultrathin layer separation layer

Stretchable organic electrochemical transistors via threedimensional porous elastic semiconducting films for artificial synaptic applications

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Nano Research 2023年第7期16卷 10206-10214页

作者： yujie Peng Lin Gao Changjian Liu Jinyi Deng Miao Xie Libing Bai Gang Wang yuhua Cheng Wei Huang junsheng yu State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu 610054China School of Automation Engineering University of Electronic Science and Technology of ChinaChengdu 611731China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringShanghai Key Laboratory of Lightweight Structural CompositesKey Laboratory of High Performance fibers&productsMinistry of EducationDonghua UniversityShanghai 201620China

Neuromorphic computing targets realizing biomimetic or intelligence systems capable of processing abundant tasks in parallel analogously to our brain,and organic electrochemical transistors(OECTs)that rely on the mixed ionic-electronic synergistic couple possess significant similarity to biological systems for implementing synaptic ***,the lack of reliable stretchability for synaptic OECTs,where mechanical deformation occurs,leads to consequent degradation of electrical ***,we demonstrate stretchable synaptic OECTs by adopting a three-dimensional poly(3-hexylthiophene)(P3HT)/styrene-ethylene-butylene-styrene(SEBS)blend porous elastic film for neuromorphic *** architecture shows the full capability to emulate biological synaptic *** the accumulated layer numbers of porous film enables tunable OECT output and hysteresis,resulting in transition in ***,with a trilayer porous film,large-scale conductance and hysteresis are endorsed for efficient mimicking of memory-dependent synapse *** from the interconnected three-dimensional porous structures,corresponding stretchable synaptic OECTs exhibit excellent mechanical robustness when stretched at a 30%strain,and maintain reliable electrical characteristics after 500 stretching ***,near-ideal weight updates with near-zero nonlinearities,symmetricity in long-term potentiation(LTP)and depression,and applications for image simulation are *** work paves a universal design strategy toward highperformance stretchable neuromorphic computing architecture and could be extended to other flexible/stretchable electronics.

关键词： organic electrochemical transistors(OECTs) artificial synapses porous films flexible electronics neuromorphic computing

Organic electroluminescent characteristics of PS:NPB composite hole transporting layer

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Frontiers of Optoelectronics 2008年第Z2期1卷 323-328页

作者： Fan SUO junsheng yu Jing DENG Shuangling LOU Yadong JIANG State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Information University of Electronic Science and Technology of China

Green organic light-emitting devices with a structure of indium-tin-oxide(ITO)/polystyrene(PS):N,N'-bis-(3-naphthyl)-N,N'-biphenyl-(1,1'-biphenyl)-4,4'-diamine(NPB)/tris-(8-hydroxyquinoline)-aluminum(Alq3)/Mg:Ag were fabricated. A doping system consisting of small-molecular hole transporting material NPB and polymeric matrix PS was applied as a composite hole transporting layer(HTL), and the thin film preparation was simplified via spin-coating technique. By adjusting the component ratio of the doping system, several devices with different concentration proportion of PS:NPB are constructed. The electroluminescent characteristics of the devices were investigated and discussed. This study demonstrated that the difference of doping concentration of NPB has a remarkable impact on the optoelectronic performance of both HTL and the devices. Optimum device performance can be obtained by choosing a suitable concentration proportion of PS:NPB at 1:1. This study contributes to the construction of composite functional layers of organic light-emitting diode(OLED)devices and to the technical modification.

关键词： organic light-emitting device N N′-bis-(3-naphthyl)-N N′-biphenyl-(1 1′-biphenyl)-4 4′-diamine (NPB) polystyrene composite hole transporting layer device performance

Stretchable,skin-conformable neuromorphic system for tactile sensory recognizing and encoding

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InfoMat 2023年第12期5卷 87-99页

作者： Mengge Wu Qiuna Zhuang Kuanming Yao Jian Li Guangyao Zhao Jingkun Zhou Dengfeng Li Rui Shi Guoqiang Xu Yingchun Li Zijian Zheng Zhihui Yang junsheng yu Xinge yu State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of China(UESTC)Chengduthe People's Republic of China Department of Biomedical Engineering City University of Hong KongHong Kongthe People's Republic of China Laboratory for Advanced Interfacial Materials and Devices School of Fashion and TextilesThe Hong Kong Polytechnic UniversityHong Kongthe People's Republic of China Hong Kong Center for Cerebra-Cardiovascular Health Engineering Hong Kong Science ParkHong Kongthe People's Republic of China College of Science Harbin Institute of TechnologyShenzhenthe People's Republic of China Department of Pathology The Affiliated Hospital of Southwest Medical UniversityLuzhouthe People's Republic of China

Expanding wearable technologies to artificial tactile perception will be of significance for intelligent human-machine interface,as neuromorphic sensing devices are promising candidates due to their low energy consumption and highly effective operating ***-compatible and conformable features are required for the purpose of realizing wearable artificial tactile ***,we report an intrinsically stretchable,skin-integrated neuromorphic system with triboelectric nanogenerators as tactile sensing and organic electrochemical transistors as information *** integrated system provides desired sensing,synaptic,and mechanical characteristics,such as sensitive response(~0.04 kPa^(-1))to low-pressure,short-and long-term synaptic plasticity,great switching endurance(>10000 pulses),symmetric weight update,together with high stretchability of 100%*** neural encoding,demonstrations are capable of recognizing,extracting,and encoding features of tactile *** work provides a feasible approach to wearable,skin-conformable neuromorphic sensing system with great application prospects in intelligent robotics and replacement prosthetics.

关键词： neural encoding neuromorphic sensing system organic electrochemical transistors tactile sensation triboelectric nanogenerators

Reliability of transparent conductive oxide in ambient acid and implications for silicon solar cells

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eScience 2024年第3期4卷 142-151页

作者： Jian yu yu Bai Qingqing Qiu Zehua Sun Lei Ye Cheng Qian Zhu Ma Xin Song Tao Chen junsheng yu Wenzhu Liu School of New Energy and Materials Southwest Petroleum UniversityChengdu 610500China Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences(CAS)Shanghai 201800China School of Optoelectronic Science and Engineering University of Electronic Science and Technology of China(UESTC)Chengdu 610054China State Key Laboratory of Silicon Materials Zhejiang UniversityHangzhou 310027China School of Materials Science and Engineering Changzhou UniversityChangzhou 213164China

Transparent conductive oxide(TCO)films,known for their role as carrier transport layers in solar cells,can be adversely affected by hydrolysis products from *** this study,we explored the morphology,optical-electrical properties,and deterioration mechanisms of In2O3-based TCO films under acetic acid stress.A reduction in film thickness and carrier concentration due to acid-induced corrosion was observed.X-ray photoelectron spectroscopy and inductively coupled plasma emission spectrometry analyses revealed that TCOs doped with less-reactive metals exhibited enhanced corrosion *** efficiency of silicon heterojunction(SHJ)solar cells with tin-doped indium oxide,titanium-doped indium oxide,and zinc-doped indium oxide films decreased by 10%,26%,and 100%,respectively,after 200h of *** also found that tungsten-doped indium oxide could effectively safeguard SHJ solar cells against acetic acid corrosion,which offers a potential option for achieving long-term stability and lower levelized cost of solar cell *** research provides essential insights into selecting TCO films for solar cells and highlights the implications of ethylene-vinyl acetate hydrolysis for photovoltaic modules.

关键词： Surface morphology Deterioration mechanism Acid-induced-corrosion Transparent conductive oxide EVA hydrolysis

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论网络虚拟财产权的权利属性

首都师范大学学报（社会科学版） 2011年第3期 135-143页

作者：余俊生北京大学经济学院银杏资本管理有限公司

学界对网络虚拟财产权的权利属性的认识有虚无说、肯定说和区别说等看法。作者认为网络虚拟财产虽然存在于虚无空间,但它产生的利益却是实际的。网络虚拟财产权不是玩家的知识产权,网络虚拟财产与通常所说的无形财产也并不相同,它是一... 详细信息

学界对网络虚拟财产权的权利属性的认识有虚无说、肯定说和区别说等看法。作者认为网络虚拟财产虽然存在于虚无空间,但它产生的利益却是实际的。网络虚拟财产权不是玩家的知识产权,网络虚拟财产与通常所说的无形财产也并不相同,它是一种特殊的债权。在特定的情形下,网络中的"虚拟人"同样享有人格权。

关键词：网络虚拟财产网络游戏知识产权债权物权人格权

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The effect ofthe leptin and its receptorexpression in CRF rat by the Reinforcing Kidney and Exhausting ToxinMixture

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中医药学刊 2004年第7期22卷 1260-1261页

作者： yu junsheng Zhuang WenQing Du Yajing Luo Bing 青岛市中医医院，山东青岛266033 青岛大学医学院，山东青岛266012

Objective:To investigate the adjusting malnutrition mechanism by the Reinforcing Kidney and Exhausting Toxic Mixture(REM)on the chronic renal failure (CRF) ***:60 wistar rats weved ivided into 3 groups randomly :the normal controc group(group Ⅰ),CRF group(group Ⅱ),and CRF rat perfusingwithREM group(group Ⅲ). Taking theirfat,kidneytissuefor detecting the protein expression of the leptin,leptin receptor(Ob-R) by the means ***:Comparing with control group, the leptinprotein express intensely in CRF rat ; In kidney tissue,the ob-R express weakly. After perfusing the REM ,comparing with CRF groupthe renal ob-R express strongly than CRF group. Conclusion: Maybe the REM could do a little better with the malnutritionof CRFratsby adjusttingthe activity of ob-R in kidney.

关键词：营养不良 REM 慢性肾功能衰竭 CRF 动物实验

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Thin,soft,3D printing enabled crosstalk minimized triboelectric nanogenerator arrays for tactile sensing

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Fundamental Research 2023年第1期3卷 111-117页

作者： Jian Li Yiming Liu Mengge Wu Kuanming Yao Zhan Gao yuyu Gao Xingcan Huang Tsz Hung Wong Jingkun Zhou Dengfeng Li Hu Li Jiyu Li Ya Huang Rui Shi junsheng yu Xinge yu Department of Biomedical Engineering City University of Hong KongHong Kong 999077China Hong Kong Center forCerebra-Cardiovascular Health Engineering Hong Kong Science ParkNew TerritoriesHong KongChina State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of China(UESTC)Chengdu 610054China Shenzhen Research Institute City University of Hong Kong Shenzhen 518057China

With the requirements of self-powering sensors in flexible electronics,wearable triboelectric nanogenerators(TENGs)have attracted great attention due to their advantages of excellent electrical outputs and low-cost processing *** crosstalk effect between adjacent sensing units in TENGs significantly limits the pixel density of sensor ***,we present a skin-integrated,flexible TENG sensor array with 100 sensing units in an overall size of 7.5 cm×7.5 cm that can be processed in a simple,low-cost,and scalable way enabled by 3D *** the sensing units show good sensitivity of 0.11 V/kPa with a wide range of pressure detection from 10 to 65 kPa,which allows to accurately distinguish various tactile formats from gentle touching(as low as 2 kPa)to hard *** 3D printing patterned substrate allows to cast triboelectric layers of polydimethylsiloxane in an independent sensing manner for each unit,which greatly suppresses the cross talk arising from adjacent sensing units,where the maximum crosstalk output is only 10.8%.The excellent uniformity and reproducibility of the sensor array offer precise pressure mapping for complicated pattern loadings,which demonstrates its potential in tactile sensing and human-machine interfaces.

关键词： Tactile sensor Triboelectricnanogenerators Self-powering sensors Crosstalk suppression Human-machine interfaces