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Surface plasmon decorated InGaO deep-UV photodetector array for image sensing and water quality monitoring via highly effective hot electron excitation and interfacial injection

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Science China(Technological Sciences) 2024年第8期67卷 2449-2460页

作者： SHU LinCong SHA ShuLin XI ZhaoYing LI Lei YAO SuHao ZHANG JiaHan JI XueQiang ZHANG ShaoHui BIAN Ang JIANG MingMing GUO YuFeng tang weihua LIU Zeng Innovation Center of Gallium Oxide Semiconductor(IC-GAO) College of Integrated Circuit Science and EngineeringNanjing University of Posts and TelecommunicationsNanjing 210023China School of Electronic Information Engineering Inner Mongolia UniversityHohhot 010021China College of Science MIIT Key Laboratory of Aerospace Information Materials and PhysicsNanjing University of Aeronautics and AstronauticsNanjing 211106China Collaborative Innovation Center of Advanced Microstructures School of Electronic Science and EngineeringNanjing UniversityNanjing 210093China Institute of Biological and Medical Engineering Guangdong Academy of SciencesGuangzhou 510316China School of Science Jiangsu University of Science and TechnologyZhenjiang 212100China School of Integrated Circuits Beijing University of Posts and TelecommunicationsBeijing 100876China

In addition to the plasmon-mediated resonant coupling mechanism,the excitation of hot electron induced by plasmon presents a promising path for developing high-performance optoelectronic devices tailored for various *** study introduces a sophisticated design for a solar-blind ultraviolet(UV)detector array using linear In-doped Ga_(2)O_(3) (InGaO)modulated by platinum(Pt)nanoparticles(PtNPs).The construction of this array involves depositing a thin film of Ga_(2)O_(3) through the plasmonenhanced chemical vapor deposition(PECVD)***,PtNPs were synthesized via radio-frequency magnetron sputtering and annealing *** performance of these highly uniform arrays is significantly enhanced owing to the generation of high-energy hot *** process is facilitated by non-radiative decay processes induced by ***,the array achieves maximum responsivity(R)of 353 mA/W,external quantum efficiency(EQE)of 173%,detectivity(D*)of approximately 10~(13)Jones,and photoconductive gain of *** addition,the standard deviation for photocurrent stays below17%for more than 80%of the array units within the ***,the application of this array extends to photon detection in the deep-UV(DUV)*** includes critical areas such as imaging sensing and water quality *** leveraging surface plasmon coupling,the array achieves high-performance DUV photon *** approach enables a broad spectrum of practical applications,underscoring the significant potential of this technology for the advancement of DUV detectors.

关键词： InGaO PECVD surface plasmon solar-blind UV photodetector array optoelectronic applications

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Improvement of Ga_(2)O_(3)vertical Schottky barrier diode by constructing NiO/Ga_(2)O_(3)heterojunction

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Journal of Semiconductors 2024年第4期45卷 63-68页

作者： Xueqiang Ji Jinjin Wang Song Qi Yijie Liang Shengrun Hu Haochen Zheng Sai Zhang Jianying Yue Xiaohui Qi Shan Li Zeng Liu Lei Shu weihua tang Peigang Li School of Integrated Circuits&State Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and TelecommunicationsBeijing 100876China College of Integrated Circuit Science and Engineering Nanjing University of Posts and TelecommunicationsNanjing 210023China Beijing Microelectronics Technology Institute Beijing 100076China

The high critical electric field strength of Ga_(2)O_(3)enables higher operating voltages and reduced switching losses in power electronic *** Schottky metals and epitaxial films are essential for further enhancing device *** this work,the fabrication of vertical Ga_(2)O_(3)barrier diodes with three different barrier metals was carried out on an n--Ga_(2)O_(3)homogeneous epitaxial film deposited on an n+-β-Ga_(2)O_(3)substrate by metal-organic chemical vapor deposition,excluding the use of edge *** ideal factor,barrier height,specific on-resistance,and breakdown voltage characteristics of all devices were investigated at room *** addition,the vertical Ga_(2)O_(3)barrier diodes achieve a higher breakdown volt-age and exhibit a reverse leakage as low as 4.82×10^(-8)A/cm^(2)by constructing a NiO/Ga_(2)O_(3)***,Ga_(2)O_(3)power detailed investigations into Schottky barrier metal and NiO/Ga_(2)O_(3)heterojunction of Ga_(2)O_(3)homogeneous epitaxial films are of great research potential in high-efficiency,high-power,and high-reliability applications.

关键词： Ga_(2)O_(3) Schottky barrier diode NiO/Ga_(2)O_(3)heterojunction

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阿里巴巴上海总部类巨型框架超限结构设计

建筑结构 2024年第7期54卷 126-132页

作者：刘桂然张西辰汤卫华上海建筑设计研究院有限公司上海200041

阿里巴巴上海总部大厦采用了类巨型框架结构体系,主要结构构件均采用了钢结构。系统介绍了塔楼超限结构设计的概况,并针对本项目类巨型框架的结构特点和难点进行了阐述。针对塔楼整体结构的不规则性,提出了结构设计的抗震性能目标和抗... 详细信息

阿里巴巴上海总部大厦采用了类巨型框架结构体系,主要结构构件均采用了钢结构。系统介绍了塔楼超限结构设计的概况,并针对本项目类巨型框架的结构特点和难点进行了阐述。针对塔楼整体结构的不规则性,提出了结构设计的抗震性能目标和抗震加强措施。结构的整体分析结果表明,结构整体指标和抗震性能均能满足既定的设计要求。对特殊及关键的结构部位进行了计算和分析,确保了构件和节点的可靠性及其在整体结构中关键作用。

关键词：巨型框架钢结构超限结构空腹桁架竖向减振

基于二阶P-Δ弹性分析法的装配式钢管支撑结构稳定性分析

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勘察科学技术 2024年第1期 1-5,37页

作者：唐伟华林军江苏省地质局南京市210018 江苏华东建设基础工程有限公司南京市210007 江苏开放大学南京市210036

该文基于《钢结构设计标准》中二阶P-Δ弹性分析方法来研究装配式钢管支撑结构的稳定性计算,对比研究支撑跨度、八字撑形式等因素对整体钢管支撑的受力影响,从而更准确地反映了钢管支撑能够承载的轴向压力上限值,可为基坑钢管支撑的设... 详细信息

该文基于《钢结构设计标准》中二阶P-Δ弹性分析方法来研究装配式钢管支撑结构的稳定性计算,对比研究支撑跨度、八字撑形式等因素对整体钢管支撑的受力影响,从而更准确地反映了钢管支撑能够承载的轴向压力上限值,可为基坑钢管支撑的设计和应用提供参考。同时,采用Abaqus软件研究了带有活络头的钢管支撑的力学性能,对比活络头对钢管支撑整体承载性能的影响,得到活络头会产生平面外的失稳现象,建议加强改进活络头平面外的刚度,避免潜在的安全隐患,提高装配式钢管支撑结构的稳定性。

关键词：装配式钢管支撑二阶弹性分析活络头

草莓FaWRKY70基因克隆与表达模式分析

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西北植物学报 2024年第7期44卷 1105-1112页

作者：邵妍丽卢贝贾思振汤伟华廖云飞西藏职业技术学院农业科学技术学院拉萨850000 江苏农林职业技术学院农学园艺学院江苏句容212400

【目的】WRKY是植物特异性转录因子家族之一,参与植物多种生命活动,但在草莓中鲜见WRKY70相关报道。深入解析WRKY70同源基因在草莓响应胁迫过程中的作用,加快分子育种技术应用,培育新草莓种质资源。【方法】用同源克隆法从‘红颜’草莓... 详细信息

【目的】WRKY是植物特异性转录因子家族之一,参与植物多种生命活动,但在草莓中鲜见WRKY70相关报道。深入解析WRKY70同源基因在草莓响应胁迫过程中的作用,加快分子育种技术应用,培育新草莓种质资源。【方法】用同源克隆法从‘红颜’草莓果实中克隆得到FaWRKY70基因,用生物信息学分析其保守结构域、理化性质、蛋白质结构及进化关系等,并结合qRT-PCR数据进行表达模式分析。【结果】FaWRKY70基因全长1020 bp,编码339个氨基酸;同源基因比对发现,FaWRKY70与苹果、牡丹等同科物种氨基酸序列相似度较高,且同源基因多与植物对生物、非生物胁迫响应相关,暗示FaWRKY70可能参与草莓抵御胁迫的过程;FaWRKY70在草莓不同器官中均有表达,且差异显著,在花中表达量最高,在果实中最低;水杨酸处理后,FaWRKY70基因快速响应,表达量在3 h后达到最高,随后逐渐降低;茉莉酸甲酯处理后FaWRKY70基因受诱导响应程度小,整体呈下调趋势。【结论】FaWRKY70能通过不同响应方式参与草莓生命活动及激素信号转导过程。

关键词：草莓 FaWRKY70 基因克隆差异表达

Study on SGDC Electrolyte Film Prepared by RF Magnetron Sputtering

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稀有金属材料与工程 2006年第A3期35卷 501-503页

作者： Cong Wang Lihai Xu weihua tang Center of Condensed Matter Physics and Material Physics School of Science Beihang University Beijing 100083 China Department of Physics Center for Optoelectronics Materials and Devices Zhejiang Sci-Tech UniversityXiasha College Park Hangzhou 310018 China

Sm and Gd co-doped Ceria (SGDC:Sm_(0.1)Gd_(0.1)Ce_(0.8)O_(1.90)) films as the electrolytes were investigated for the IT-SOFCs (intermediate-temperature solid oxide fuel cells).SGDC sensing films were successfully prepared on the Al_2O_3 substrates by RF-magnetron *** relationship between sputtering parameters and film microstructure was discussed, and the optimum parameters were *** crystal structure analysis and surface morphologic observation of the SGDC films were carried out through X-ray diffraction (XRD) and scanning electron microscopy (SEM).The oxygen ion conductivity of the SGDC film was evaluated by AC impedance spectroscopy at the different *** XRD analysis shows that the SGDC films grow preferentially along the (111) compact *** crystallinity of the SGDC films is enhanced with the increase of the RF sputtering power from 150 W to 250 *** oxygen ion conductivity of the SGDC was measured at the temperature from 600℃to 800℃in air by AC impedance *** result shows that a high oxygen ion conductivity of 2.44×10^(-2) ***^(-1) was achieved at 800℃.

关键词： solid oxide fuel cell electrolyte film Sm0.1Gd0.1Ce0.8O1.90 RF magnetron sputtering

早产儿视网膜病变患儿血清自噬标志物水平的变化及临床应用价值

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实用医学杂志 2024年第1期40卷 79-84,90页

作者：吴涛丁苏明詹昶崔雯雯唐卫华九江市妇幼保健院眼科江西九江332000

目的研究早产儿视网膜病变(ROP)患儿血清自噬标志物水平的变化及临床应用价值。方法选择2020年1月至2022年12月期间在九江市妇幼保健院筛查ROP的早产儿作为研究对象,出生第4-6周时筛查ROP并分为ROP组和对照组,检测出生第3天和1、2、3周... 详细信息

目的研究早产儿视网膜病变(ROP)患儿血清自噬标志物水平的变化及临床应用价值。方法选择2020年1月至2022年12月期间在九江市妇幼保健院筛查ROP的早产儿作为研究对象,出生第4-6周时筛查ROP并分为ROP组和对照组,检测出生第3天和1、2、3周时血清中自噬标志物LC3-Ⅱ、Beclin-1、P62的水平,比较2组间血清自噬标志物的差异,分析血清自噬标志物对ROP的诊断效能。结果ROP组与对照组出生第3天时的血清LC3-Ⅱ、Beclin-1、P62水平比较差异无统计学意义(P>0.05);ROP组患儿出生第1、2、3周时的血清LC3-Ⅱ、Beclin-1水平低于对照组,P62水平高于对照组(P<0.05);出生第1、2、3周时的血清LC3-Ⅱ、Beclin-1、P62水平均对ROP具有诊断价值;与ROP组中未接受机械通气治疗、吸氧治疗以及未合并脓毒症、支气管肺发育不良的患儿比较,接受机械通气治疗、吸氧治疗以及合并脓毒症、支气管肺发育不良患儿出生第1、2、3周时的血清LC3-Ⅱ、Beclin-1水平较低,P62水平较高(P<0.05);ROP组中重度患儿出生第3天和1、2、3周时的血清LC3-Ⅱ、Beclin-1低于轻度患儿,P62水平高于轻度患儿(P<0.05)。结论ROP患儿出生第1周起血清自噬标志物水平发生显著变化且对疾病具有诊断效能。

关键词：早产儿视网膜病变自噬诊断

High responsivity and fast response 8×8β-Ga_(2)O_(3)solar-blind ultraviolet imaging photodetector array

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Science China(Technological Sciences) 2023年第11期66卷 3259-3266页

作者： SHEN GaoHui LIU Zeng tang Kai SHA ShuLin LI Lei TAN Chee-Keong GUO YuFeng tang weihua Innovation Center of Gallium Oxide Semiconductor(IC-GAO) College of Integrated Circuit Science and EngineeringNanjing University of Posts and TelecommunicationsNanjing 210023China National and Local Joint Engineering Laboratory for RF Integration and Micro-Assembly Technologies Nanjing University of Posts and TelecommunicationsNanjing 210023China Key Laboratory of Aerospace Information Materials and Physics(NUAA) MIITNanjing 211106China College of Physics MIIT Key Laboratory of Aerospace Information Materials and PhysicsKey Laboratory for Intelligent Nano Materials and DevicesNanjing University of Aeronautics and AstronauticsNanjing 211106China Advanced Materials Thrust Function HubThe Hong Kong University of Science and Technology(Guangzhou)Nansha 511458China Department of Electronic and Computer Engineering School of EngineeringThe Hong Kong University of Science and TechnologyHong Kong 999077China

In this work,an 8×8 Ga_(2)O_(3)solar-blind ultraviolet photodetector array is introduced for image sensing *** 2-in wafer-scaled Ga_(2)O_(3)thin film was grown by metalorganic chemical vapor deposition technique;and the photodetector array was fabricated through ultraviolet photolithography,lift-off,and electron-beam *** addition to the high solar-blind/visible rejection ratio of 104,every photodetector cell in the array has high performance and fast response speed,such as responsivity of 49.4 A W^(-1),specific detectivity of 6.8×10^(14)Jones,external quantum efficiency of 1.9×10^(4)%,linear dynamic range of 117.8 d B,and response time of 41 ms,respectively,indicating the high photo-response performance of the ***,the photodetector array displayed uniform responsivity with a standard deviation of~6%,and presented a sensing image of low chromatic aberration,owing to the high resolution of the photodetector *** a word,this work may contribute to developing Ga_(2)O_(3)-based optoelectronic device applications.

关键词： Ga_(2)O_(3) photodetector array imaging photo-response

A low temperature processable tin oxide interlayer via aminemodification for efficient and stable organic solar cells

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Journal of Energy Chemistry 2021年第5期30卷 496-503页

作者： Shun Guang Jiangsheng Yu Hongtao Wang Xin Liu Shenya Qu Rihong Zhu weihua tang MIIT Key Laboratory of Advanced Solid Laser Nanjing University of Science and TechnologyNanjing 210094JiangsuChina School of Chemical Engineering Nanjing University of Science and TechnologyNanjing 210094JiangsuChina School of Electronic and Optical Engineering Nanjing University of Science and TechnologyNanjing 210094JiangsuChina

The exploitation of proper electron transport layers(ETLs)and interface optimization can play a pivotal role to promote the performance of organic solar cells(OSCs).In this work,low temperature processable tin oxide(SnO_(2))colloidal nanoparticles with ethanolamine(EA)treatment are successfully employed for efficient and stable OSCs with light soaking *** EA is chemically bonded with SnO_(2),and the ethanolamine treated tin oxide(E-SnO_(2))layer delivers a suitable work function of 4.10 eV and a unique surface texture with suspended polar *** enhanced performance of E-SnO_(2) based OSCs can be attributed to the improved charge transport and electron extraction,which is correlated with the regulated energy level alignment and contact quality of E-SnO_(2)/active *** a result,considerable power conversion efficiencies(PCEs)of 10.30%,13.93%and 15.38%for PTB7-Th/PC_(71) BM,PM7/ITC6-4 F and PM6/Y6 based OSCs have been realized with E-SnO_(2) as ETL,*** with ZnO based devices,the E-SnO_(2) based OSCs exhibit an improved light aging stability,which can retain 94.3%of their initial PCE of 15.38%after 100 h light aging for E-SnO_(2)/PM6/Y6 based *** work demonstrates that the enormous potential of E-SnO_(2) to serve as ETL for high-efficiency and stable OSCs.

关键词： Light soaking free Electron transport layer SnO2 Low temperature Organic solar cells