检索结果-内蒙古大学图书馆

作者： Zhang, Qi Guo, Kun Ping Zhang, Jing Wei, Bin School of Materials Science and Engineering Shanghai University Shanghai China Key Laboratory of Advanced Display and System Applications Ministry of Education Shanghai University Shanghai China

We report high-efficiency red organic light-emitting diodes (OLEDs) and color-tunable white OLEDs using a novel red phosphorescent material. The transient PL decay measurement indicates that this red emitter exhibits a very-short lifetime, which is dependent on dopant concentration. Based on an optimized dopant concentration, we have fabricated a high-efficiency red electroluminescent device with a maximum external quantum efficiency (EQE) up to ηEQE= 22.6%. Furthermore, the color-tunable white organic light-emitting diodes by introducing this red dopant have been fabricated, in which CIE chromaticity coordinates follows the Planckian locus in warmer-color regions. Copyright © 2015 American Scientific Publishers All rights reserved.

关键词： Luminescent devices

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Low subthreshold swing enables high synaptic weight gains based on channel-side gate dependent electrolyte transistors FET design 21

Low subthreshold swing enables high synaptic weight gains ba...

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21st China International Forum on Solid State Lighting and 10th International Forum on Wide Bandgap Semiconductors, SSLCHINA: IFWS 2024

作者： Gong, Qiming Wang, Fei Zheng, Hao Li, Mengjiao School of Microelectronics Shanghai University Shanghai200444 China Key Laboratory of Advanced Display and System Applications Ministry of Education Shanghai University Shanghai200072 China

ISBN: (纸本)9798331541149

With the development of IoT and AI technologies, brain-like synaptic devices with precise weight modulation of synaptic plasticity and controllable preparation are of great significance for developing neuromorphic computing and intelligent sensing technologies. In this paper, we design a series of side-gate electrolyte transistors with varying gate-channel distances and systematically examine the structural design effect on synaptic weight modulation. A synaptic transistor device with an ultra-low subthreshold swing of 89.8 mV/dec has been successfully achieved by optimizing the gate-channel design. Additionally, Further characterizations of the short-term synaptic plasticity and long-term synaptic plasticity of synaptic transistors uncover the flexible modulation of the gate-channel distance-dependent synaptic weight gain behaviors, which span from as low as 6.1 to as high as 87.5 under 50 successive stimuli. The results of this work provide a reliable solution for the design and preparation of high-performance synaptic devices and lay the foundation for high-precision neural networks and intelligent sensing technologies. ©2024 IEEE.

关键词： Integrated circuit design

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Voltage regulator architecture used in automotive electronics

Voltage regulator architecture used in automotive electronic...

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International Conference on Measuring Technology and Mechatronics Automation

作者： Hu, Yueli Yang, Kai Jiang, Yuxi Key Laboratory of Advanced Display and System Applications Shanghai University Shanghai 200072 China School of Mechatronics Engineering and Automation Shanghai University Shanghai 200072 China

ISBN: (纸本)9780769542966

In modern electronic devices, linear regulator is increasingly important. Modules in a system may require different supply voltages, and the system always has only one supply. So a regulator will be needed. This paper describes a voltage regulator which can solve the problem above. Different types of vehicles has different battery voltage, the regulator described in this paper can convert the input voltage with a big range (10v-40v) to 3.3v. The output can supply other modules in a system of automotive electronics. The experimental results show that all main expectations are achieved. © 2011 IEEE.

关键词： Voltage regulators

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Imaging quality analysis in 3D holographic display with kinoforms generated by slice-based fresnel diffraction and point-based method with fresnel zone plate

Imaging quality analysis in 3D holographic display with kino...

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Digital Holography and Three-Dimensional Imaging, DH 2017

作者： Zhang, Zhen Chen, Siqing Zheng, Huadong Yu, Yingjie Asundi, Anand K. Gao, Hongyue Dept. of Precision Mechaanical Engineering Shanghai University Shanghai200072 China Key Laboratory of Advanced Display and System Application Chinese Ministry of Education Shanghai200072 China School of Mechanical and Aerospace Engineering Nanyang Technological University Singapore639798 Singapore

ISBN: (纸本)9781943580286

Hologram calculating of 3D object has different computation methods. This paper mainly introduces the principle of slice-based Fresnel diffraction and point-based with Fresnel zone plate (FZP), and analyzes the imaging quality of the numerical reconstruction results by using our proposed methods. The reconstruction results show that Fresnel diffraction method is better in imaging quality. © OSA 2017.

关键词： Holograms

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Efficient and chromatic-controllable white organic light-emitting diodes on plastic substrates using color conversion methods

Efficient and chromatic-controllable white organic light-emi...

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16th International display Workshops, IDW '09

作者： Li, Bo Sun, Sanchun Lu, Lin Liao, Yingjie Li, Chunya Zhang, Jianhua Xu, Hongguang Wei, Bin Key Laboratory of Advanced Display and System Application Ministry of Education Shanghai University 149 Yanchang Rd. Shanghai 200072 China SVA Electron Co. Ltd. FPD Building 149 Yanchang Rd. Shanghai 200072 China

The chromatic-stability white organic light emitting diodes have been investigated basing on color conversion method, and result found little CIE coordinate migration under driving voltage from 5V to 12V.

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OTFT with bilayer gate insulator and modificative electrode

Pan Tao Ti Hsueh Pao/Chinese Journal of Semiconductors

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Pan Tao Ti Hsueh Pao/Chinese Journal of Semiconductors 2008年第4期29卷 650-654页

作者： Bai, Yu Khizar-Ul-Haq Khan, M.A. Jiang, Xueyin Zhang, Zhilin Department of Materials Science Shanghai University Shanghai 201800 China Key Laboratory of Advanced Display and System Application Shanghai University Shanghai 200072 China

An organic thin-film transistor (OTFT) with an OTS/SiO2 bilayer gate insulator and a MoO3/Al electrode configuration between gate insulator and source/drain electrodes has been investigated. A thermally grown SiO2 layer is used as the OTFT gate dielectric and copper phthalocyanine (CuPc) is used as an active layer. This 0TS/SiO2 bilayer gate insulator configuration increases the field-effect mobility, reduces the threshold voltage, and improves the on/off ratio simultaneously. The device with a MoO3/Al electrode has shown similar Ids compared to the device with an Au electrode at the same gate voltage. Our results indicate that using a double-layer of electrodes and a double-layer of insulators is an effective way to improve OTFT performance.

关键词： Thin film transistors

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Aqueous Sr-doped In2O3 TFT stability under negative bias illumination stress

Aqueous Sr-doped In2O3 TFT stability under negative bias ill...

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International Conference on display Technology, ICDT 2019

作者： Zhou, Youhang Li, Jun Yang, Yaohua Li, Xifeng Zhang, Jianhua School of Material Science and Engineering Shanghai University Shanghai Jiading China Key Laboratory of Advanced Display and System Applications Ministry of Education Shanghai University Shanghai China

ISBN: (纸本)9781510896161

In this paper, the Sr-doped In2O3 thin film is fabricated by aqueous route and the stability of InSrO thin film transistor under negative bias illumination stress (NBIS) is investigated. It is found that Sr can effectively improve the stability of In2O3 TFTs under NBIS, which is due to the reduction of oxygen vacancies. The XPS measurement is tested to analyze the variation of oxygen vacancy concentration. The density of states is calculated to further confirm the decrease of total trap state caused by Sr doping. © 2019, John Wiley and Sons Inc. All rights reserved.

关键词： Thin film transistors

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Global optimization of process parameters for low-temperature SiN_(x) based on orthogonal experiments

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Advances in Manufacturing 2023年第2期11卷 181-190页

作者： Lian-Qiao Yang Chi Zhang Wen-Lei Li Guo-He Liu Jia-Qi Wu-Ma Jin-Qiang Liu Jian-Hua Zhang School of Materials Science and Engineering Shanghai UniversityShanghai200444People's Republic of China Key Laboratory of Advanced Display and System Applications Ministry of EducationShanghai UniversityShanghai200072People's Republic of China Huawei Technologies Co. LtdShanghai200120People's Republic of China

Low-temperature silicon nitride(SiNx)films deposited by plasma-enhanced chemical vapor deposition(PECVD)have huge application potential in the flexible ***,the applicability of SiNx largely depends on the film’s general properties,including flexibility,deposition rate,residual stress,elastic modulus,fracture strain,dielectric constant,refraction index,*** optimization towards specific application by conventional experiment design needs lots of work due to the interaction of muti quality and process ***,an efficient global optimization approach for the process technology was proposed based on the Taguchi orthogonal experiment method considering muti-factor *** of all,the Taguchi orthogonal experiment design and analysis was used to rank the influences of main process parameters on the quality characteristics,including radio frequency(RF)power,pressure,silane flow rate,ammonia flow rate and nitrogen flow ***,the global optimization approach was carried out utilizing the multi-response optimizer considering the combination target of film formation rate,residual stress,dielectric constant,elastic modulus,fracture strain,refractive ***,the optimal solution of the SiNx film was finally obtained and verified.

关键词： Plasma-enhanced chemical vapor deposition(PECVD) Low-temperature silicon nitride(SiNx) Flexible display Taguchi orthogonal experiment Process optimization

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Hydrogen passivation for the performance enhancement of poly-Si crystallized by double-frequency YAG laser

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Optoelectronics Letters 2010年第4期6卷 288-290页

作者：李娟丁思维姚颖罗翀孟志国吴春亚熊绍珍张志林郭海诚 Tianjin Key Laboratory of Photo-electronic Thin Film Devices and Technology Key Laboratory of Opto-electronic Information Science and Technology(Nankai University and Tianjin University) Ministry of Education Institute of Photo-electronics Nankai University Key Laboratory of Advanced Display and System Applications Ministry of EducationShanghai University Department of Electronic and Computer Engineering The Hong Kong University of Science and Technology

The hydrogen passivation is adopted to enhance the performance of poly-Si crystallized by YAG laser annealing(LA polySi).The effects of passivation time,passivation power and passivation temperature on the hall mobility of the LA poly-Si are investigated and the mechanism of the hydrogen passivation is preliminarily *** is found that the effect of the hydrogen passivation on the qulity of YAG laser annealed poly-Si is also correlated with the deposition method and the defect type in it.

关键词： YAG激光器性能增强氢钝化结晶双频率聚硅激光退火多晶硅

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A Location Strategy for Traffic Emission Remote Sensing system Based on Bus Routes 36

A Location Strategy for Traffic Emission Remote Sensing Syst...

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第36届中国控制会议

作者： Yuxiao Yang Zerui Li Yu Kang Department of Automation University of Science and Technology of China State Key Laboratory of Fire Science University of Science and Technology of China Institute of Advanced Technology University of Science and Technology of China Key Laboratory of Technology in Geo-Spatial Information Processing and Application System Chinese Academy of Sciences

ISBN: (纸本)9781538629185

This paper presents a novel location strategy for traffic emission remote sensing system（TERSS） based on bus *** the purpose of reducing cost,the corresponding Hypergraph Model is established based on graph theory and the topological structure of urban road ***,the location problem of traffic emission remote sensing detectors is defined and transformed into finding the minimum transversal of the Hypergraph which is used to obtain the location scheme for TERSS based on bus routes according to Boolean algebra ***,the proposed location strategy helps to obtain a location scheme for a city bus system to monitor buses as many as possible.

关键词： Location strategy TERSS bus routes Boolean algebra

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