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Effect of annealing on wet etch of amorphous IGZO thin film

Journal of Shanghai University(English Edition) 2011年第4期15卷 245-247页

作者：陈龙龙石继锋李倩李喜峰张建华 Key Laboratory of Advanced Display and System Application (Shanghai University) Ministry of Education

Amorphous InGaZnO （a-IGZO） film is deposited on the glass substrate by radio-frequency sputtering and the influence of annealing on wet etch of a-IGZO films were investigated. The results show that etch rate of IGZO films decrease with the increase of annealing temperature. Etching taper angle is less than 60° and critical dimension （CD） loss is less than 1μm in over-etching time of 30 s. The fact implies that IGZO films etching with oxalic acid may be a good wet etching way for the thin-film transistor （TFT） array process.

关键词： amorphous InGaZnO （a-IGZO） annealing etching

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High Color Gamut Top-Emitting Organic Light-Emitting Diode Based on Metal/Transparent Conductive Oxide Composite Electrode

SSRN

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SSRN 2025年

作者： Lin, Yang Zhu, Yangyang Zhao, Ben Gu, Jialu Xu, Yachen Lan, Weixia Chen, Guo Shi, Wei Kido, Junji Wei, Bin Shanxi Datong University China School of Mechatronic Engineering and Automation Shanghai University Shanghai200072 China Shanghai Engineering Research Center for Integrated Circuits and Advanced Display Materials Shanghai University Shanghai200072 China Key Laboratory of Advanced Display and System Applications Ministry of Education Shanghai University Shanghai200072 China Nanan Institute Shanghai University Nan'an Fujian Quanzhou362300 China Frontier Center for Organic Materials Yamagata University 4-3-16 Jonan Yonezawa992-8510 Japan

Top-emitting organic light-emitting diodes (TEOLEDs) based on metal/transparent conductive oxide composite anodes, which were Al/ITO and Ag/ITO, were studied. The microcavity effect was optimized by adjusting the microcavity thickness and microcavity order to achieve high color gamut RGB monochromatic light display. Through mathematical modeling and spectral simulation, TEOLEDs with different microcavity structures were designed. The results showed that the full width at half maximum and the color purity of the light of the TEOLED based on the second-order microcavity were significantly optimized compared to those of the TEOLED based on the first-order microcavity. Meanwhile, the TEOLEDs based on the Ag/ITO composite electrode exhibited better optoelectronic performance, with the significantly enhanced external quantum efficiency of up to 19.40%, narrower full width at half maximum of down to 20 nm, and improved color purity. The corresponding red, green, and blue TEOLEDs had achieved excellent color coordinates of (0.697, 0.301), (0.154, 0.769), and (0.139, 0.050), and the color gamut area of the device had reached 172.4% of the color gamut area of the bottom-emitting OLED, 125.6% of the National Television system Committee standard color gamut, and 93.8% of the ITU-R Recommendation BT.2020 standard color gamut. © 2025, The Authors. All rights reserved.

关键词： Organic light emitting diodes (OLED)

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A lightweight model for long-term multivariate time series forecasting via high-dimensional feature maps

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Applied Soft Computing 2025年 178卷

作者： Tang, Shixiang Guan, Yepeng School of Communication and Information Engineering Shanghai University Shanghai200444 China Key Laboratory of Advanced Display and System Application Ministry of Education Shanghai200072 China Ministry of Education Shanghai200444 China

In practical applications, both performance and computational cost are crucial for long-term time series forecasting (LTSF). Transformers excel in capturing long-sequence interactions but suffer from slow training and high computational demands, limiting timely predictions. On the other hand, lightweight linear models often lack accuracy. These challenges may arise from the limited representational capacity of time series in their one-dimensional (1D) form. To address these limitations, TSMNet, a novel lightweight model, is proposed. TSMNet decouples the time series into higher dimensions, significantly enhancing feature representation efficiency while avoiding information redundancy. By segmenting 1D time series into multiple time series maps (TSMs) and employing periodic feature mixing and sub-TSM stacking strategies, local dependencies and global correlations are captured simultaneously. Additionally, an encoder based on two-dimensional (2D) dilated convolutions is introduced, with expandable channels and progressively widening convolutional kernels, enabling the comprehensive extraction of complex temporal variations. Finally, the extracted features are efficiently decoded and predicted via a multilayer perceptron (MLP) flatten head. Experiments on ten benchmark long-term time series forecasting datasets demonstrate that TSMNet achieves relative improvements of 8.40% compared with the state-of-the-art (SOTA) method. Furthermore, TSMNet operates approximately 10–41 times faster with extremely low computational resources. © 2025 Elsevier B.V.

关键词： Mapping

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Efficiency enhancement in DIBSQ：PC71BM organic photovoltaic cells by using Liq-doped Bphen as a cathode buffer layer

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Frontiers of Materials Science 2017年第3期11卷 233-240页

作者： Guo CHEN Changfeng SI Pengpeng ZHANG Kunping GUO Saihu PAN Wenqing ZHU Bin WEI Key Laboratory of Advanced Display and System Applications (Ministry of Education) Shanghai University Shanghai 200072 China

We have improved the photovoltaic performance of 2,4-bis[4-（N,N- diisobutylamino）-2,6-dihydroxyphenyl] squaraine：[6,6]-phenyl C71-butyric acid methyl ester （DIBSQ：PC71BM） organic photovoltaic （OPV） cells via incorporating Liq-doped Bphen （Bphen-Liq） as a cathode buffer layer （CBL）. Based on the Bphen-Liq CBL, a DIBSQ：PC71BM OPV cell possessed an optimal power conversion efficiency of 4.90%, which was 13% and 60% higher than those of the devices with neat Bphen as CBL and without CBL, respectively. The enhancement of the device performance could be attributed to the enhanced electron mobility and improved electrode/active layer contact and thus the improved photocurrent extraction by incorporating the Bphen-Liq CBL. Light-intensity dependent device performance analysis indicates that the incorporating of the Bphen-Liq CBL can remarkably improve the charge transport of the DIBSQ：PC71BM OPV cell and thus decrease the recombination losses of the device, resulting in enhanced device performance. Our finding indicates that the doped Bphen-Liq CBL has great potential for high-performance solution-processed small-molecule OPVs.

关键词： organic photovoltaic cells squaraine cathode buffer layer power conversion efficiency solution-process

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Integration and verification case of IP-core based system on chip design

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Journal of Shanghai University(English Edition) 2010年第5期14卷 349-353页

作者：胡越黎周谌 School of Mechanical and Electronic Engineering and Automation Shanghai University Key Laboratory of Advanced Display and System Application

In this paper, the design and verification process of an automobile-engine-fan control system on chip （SoC） are introduced. The SoC system, SHU-MV08, reuses four new intellectual property （IP） cores and the design flow is accomplished with 0.35 btm chartered CMOS technology. Some special functions of IP cores, the detailed integration scheme of four IP cores, and the verification method of the entire SoC are presented. To settle the verification problems brought by analog IP cores, NanoSim based chip-level mixed-signal verification method is introduced. The verification time is greatly reduced and the first tape-out achieves success which proves the validity of our design.

关键词： system on chip （SoC） intellectual property （IP）-core integration verification pulse width modulation （PWM）- analog digital converter （ADC） linkage running

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A novel solution-based self-assembly approach to preparing ultralong titanyl phthalocyanine sub-micron wires

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Chinese Physics B 2014年第7期23卷 655-660页

作者：朱宗鹏魏斌张建华王军 School of Materials Science and Engineering Shanghai University Key Laboratory of Advanced Display and System Applications Ministry of EducationShanghai University

Ultralong titanyl phthalocyanine （TiOPc） sub-micron wires have been synthesized by a novel solution-based self- assembly method. By using different solvents, changing the mass concentration and the solvent vapor pressure, the length and the shape of the wires can be adjusted. The mixed-phase properties of the TiOPc sub-micron wires were investigated by the ultraviolet-visible （UV-vis） absorption spectrum and X-ray diffraction. Organic transistors based on these wires were studied, which show the typical p-channel characteristics.

关键词： titanyl phthalocyanine sub-micron wire transistor solution method

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Influence of reaction parameters on the luminescence properties of monodisperse NaGd（1-x-y）（WO4）2:xEu3+,yTb3+ phosphor by molten salt synthesis

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Journal of Rare Earths 2018年第1期36卷 49-57页

作者： Weiqin Xiao Luqiao Yin Jipeng Zhou Fang Lei Ying Shi Jianjun Xie Lei Zhang School of Materials Science and Engineering Shanghai University Key Laboratory of Advanced Display and System Applications Ministry of Education (Shanghai University)

Eu3+activated and Eu3+, Tb3+co-activated monodisperse sodium double tungstates NaGd（WO4）2 phosphors were prepared by molten salt method at 750 ℃ for 10 h using NaCl as a flux. The crystal structure and morphology of the as-synthesized phosphors were measured by XRD and SEM, respectively. The photoluminescence properties were characterized by PL spectra, decay lifetime and CIE. The presence of NaCl plays an important role in the morphology and luminescence properties. In this work,NaCl and one of the raw material Na2CO3in a certain proportion will form a low eutectic salt to decrease the reaction temperature and benefit the formation of monodisperse NaGd（WO4）2crystals. The color of Eu3+and Tb3+co-doped NaGd（WO4）2phosphors can be tuned from creamy white to orange, red and green by adjusting the doping concentration of rare earth ions, since the emission contain the broad blue-green emission origin from NaGd（WO4）2host and characteristic red and green emission origin from Eu3+and Tb3+ions. The electroluminescent spectra and CIE measurement shows that the LED device with NaGd（1-x）（WO4）2:xEu3+（x = 0.24） phosphor can be excited by 365 nm and 380 nm LED chip, and their CIE coordinate is（x = 0.45, y = 0.45） and（x = 0.36, y = 0.37）, Ra is 80.3 and 86.3, Tcis 3196 and4556 K, respectively. As a single-component phosphor, NaGd（WO4）2:Eu3+,Tb3+have potential application in UV-pumped WLEDs.

关键词： NaGd（1-x-y）（WO4）2:xEu3+ yTb3+ Molten salt method Single component WLEDs White light

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Fine-tuning the thicknesses of organic layers to realize high-efficiency and long-lifetime blue organic light-emitting diodes

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Chinese Physics B 2012年第8期21卷 186-190页

作者：于建宁张民艳李崇尚玉柱吕燕芳魏斌黄维 Key Laboratory of Advanced Display and System Applications Ministry of EducationShanghai University Key Laboratory for Organic Electronics&Information Displays and Institute of Advanced Material Nanjing University of Posts and Telecommunications

By using p-bis（p - N, N-diphenyl-aminostyryl）benzene doped 2-tert-butyl-9, 10-bis-β-naphthyl）-anthracene as an emitting layer, we fabricate a high-efficiency and long-lifetime blue organic light emitting diode with a maximum external quantum efficiency of 6.19% and a stable lifetime at a high initial current density of 0.0375 A/cm2. We demonstrate that the change in the thicknesses of organic layers affects the operating voltage and luminous efficiency greater than the lifetime. The lifetime being independent of thickness is beneficial in achieving high-quality full-colour display devices and white lighting sources with multi-emitters.

关键词： organic light-emitting diode blue emission lifetime organic layers thickness

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AMOLED Encapsulation Technology and Prospect

AMOLED Encapsulation Technology and Prospect

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International Conference on display Technology, ICDT 2018

作者： Ao, Wei Li, Chunhong Wang, Yan Liu, Xiangchao Xin, Xiaogang Gao, Feng Peng, Chaochi Zhang, Jianhua Key Laboratory of Advanced Display and System Application Ministry of Education Shanghai University Shanghai200072 China

ISBN: (纸本)9781510867659

The flexible organic light emitting diodes (OLEDs) has attracted a lot of attention because of its very wide and promising application prospect. The flexible encapsulation is a most problem for mass production of flexible OLEDs since their sensitivity to water and oxygen. Traditional flexible encapsulation using plasma enhanced chemical vapor deposition (PECVD) film as the inorganic layer. However owing to the complicated pattern of sub-layer and particles, the poor step coverage of PECVD film results in bad encapsulation properties. Therefore the plasma enhanced atomic layer deposition (PEALD) is studied on account of its better step coverage and lower growth temperature. Firstly, the PECVD SiNx process has been researched to achieve the low water vapor transmission rate (WVTR) (WVTR*10-4g m-2day-1) and low stress ( © 2018 SID.

关键词： Plasma enhanced chemical vapor deposition

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Fast mode decision algorithm for extended macroblock motion estimation in key technology areas

Fast mode decision algorithm for extended macroblock motion ...

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作者： Shen, Liquan Zhang, Zhaoyang Shanghai University Key Laboratory of Advanced Display and System Application Ministry of Education Shanghai 200072 China

Block sizes larger than the traditional 16×16 macroblock (MB) structure and extended macroblock (EMB) size motion estimation (ME) are introduced in joint model key technology areas software to improve the inter block coding efficiency. Similar to H.264, variable size motion estimation (VS-ME) is still adopted for each 16×16 MB including 16×16, 16×8, 8×16, 8×8, 8×4, 4×8, and 4×4. EMB size ME and VS-ME achieve the highest possible coding efficiency, but result in extremely large coding time which obstructs it from practical use. A fast mode decision algorithm for EMBs based on motion homogeneity is proposed to reduce the computational complexity of ME. The basic idea of the proposed method is to utilize the spatial property of motion field in prediction where EMB size ME and small size ME (including 8×8, 8×4, 4×8 and 4×4) are needed, and only in these regions EMB size ME and small size ME are enabled. The motion field is generated by the corresponding motion vectors in spatial window. Simulation results show that the proposed algorithm can save 55% average computational complexity, with negligible loss of coding efficiency. © 2012 SPIE and IS&T.

关键词： Motion estimation

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