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Capacitance of Organic Schottky Diodes Based on Copper Phthalocyanine （CuPc）

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Chinese Physics Letters 2010年第6期27卷 175-178页

作者： LI Zhong-Liang wu zhao-xin JIAO Bo MAO Gui-Lin HOU Xun Key Laboratory of Photonics Technology for Information (Shaanxi Province) and Key Laboratory for Physical Electronics and Devices of the Ministry of Education School of Electronic and Information Engineering Xi'an Jiaotong University Xi'an 710049

The capacitance of an organic Schottky diode based on copper phthalocyanine （CuPc） is investigated. Based on the organic small-signal equivalent model established, we calculate the reverse capacitance CMetal Of the organic Schottky diode with different kinds of metal cathodes （Mg, Al, Au）. It is found that the reverse capacitance of the organic Schottky diode shows behavior as CMg 〉 CAl 〉 CAu at the same frequency, and according to our analysis, the reverse Schottky junction capacitance Cj is expected to have little effect on the reverse capacitance of the organic Schottky diode, and the space-charge limited current capacitance Us is considered to dominate the reverse capacitance, which limits the improvement of frequency characteristics of organic Schottky diodes.

关键词： Organizations Beers Metals Aluminium Magnesium

有机/有机界面污染对有机电致发光器件稳定性的影响(英文)

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发光学报 2013年第6期34卷 763-768页

作者：张新稳吴朝新南京邮电大学有机电子与信息显示国家重点实验室培育基地江苏南京210023 西安交通大学电子与信息工程学院信息光子技术省重点实验室陕西西安710049

有机电致发光器件的稳定性是其实用化面临的主要难题之一。为了研究有机/有机界面性质对有机电致发光器件稳定性的影响,采用溶液旋涂的NPB(NPBSC)作为器件的空穴传输层制备了两种异质结电致发光器件:ITO/NPBSC/Alq3/LiF/Al和ITO/NPBSC/N... 详细信息

有机电致发光器件的稳定性是其实用化面临的主要难题之一。为了研究有机/有机界面性质对有机电致发光器件稳定性的影响,采用溶液旋涂的NPB(NPBSC)作为器件的空穴传输层制备了两种异质结电致发光器件:ITO/NPBSC/Alq3/LiF/Al和ITO/NPBSC/NPB/Alq3/LiF/Al,对比研究了器件的发光性能和工作稳定性。研究结果表明:完全使用NPBSC作为空穴传输层的器件性能和稳定性都较差,这归因于不稳定的NPBSC/Alq3界面,在空气中旋涂制备NPB层时,空气中的水蒸气和氧气分子会粘附在空穴传输层表面,这样就会引起界面处Alq3分子的发光猝灭。插入10 nm真空蒸镀的NPB层可以显著地提高器件的发光性能和稳定性,10 nm的NPB层把污染界面与激子复合区界面分开,避免了水蒸气和氧气分子对Alq3分子的发光猝灭,器件的效率增加了1.15 cd/A,半衰期寿命提高了4倍。

关键词：有机电致发光器件有机有机界面稳定性

Highly mass activity electrocatalysts with ultralow Pt loading on carbon black for hydrogen evolution reaction

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 182-190页

作者： Shaorou Ke Yajing zhao xin Min Yanghong Li Ruiyu Mi Yangai Liu Xiaowen wu Minghao Fang zhaohui Huang Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid WastersNational Laboratory of Mineral MaterialsSchool of Materials Science and TechnologyChina University of Geosciences(Beijing)Beijing 100083China

Pt-based nanocatalysts offer excellent prospects for various ***,the low loading of Pt with excellent performance for efficient and stable nanocatalysts still presents a considerable *** this study,nanocatalysts with ultralow Pt content,excellent performance,and carbon black as support were prepared through in-situ ***~2-nm particles uniformly and stably dispersed on carbon black because of the strong s-p-d orbital hybridizations between carbon black and Pt,which suppressed the agglomeration of Pt *** unique structure is beneficial for the hydrogen evolution *** catalysts exhibited remarkable catalytic activity for hydrogen evolution reaction,exhibiting a potential of 100 mV at 100 mA·cm^(-2),which is comparable to those of commercial Pt/C *** activity(1.61 A/mg)was four times that of a commercial Pt/C catalyst(0.37 A/mg).The ultralow Pt loading(6.84wt%)paves the way for the development of next-generation electrocatalysts.

关键词： hydrogen evolution reaction ultralow platinum in-situ synthesis ultrasound

Single-cell omics: experimental workflow, data analyses and applications

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Science China Life Sciences 2025年第1期68卷 5-102页

作者： Fengying Sun Haoyan Li Dongqing Sun Shaliu Fu Lei Gu xin Shao Qinqin Wang xin Dong Bin Duan Feiyang xing Jun wu Minmin Xiao Fangqing zhao Jing-Dong J.Han Qi Liu Xiaohui Fan Chen Li Chenfei Wang Tieliu Shi Department of Clinical Laboratory the Affiliated Wuhu Hospital of East China Normal University (The Second People's Hospital of Wuhu City) Pharmaceutical Informatics Institute College of Pharmaceutical SciencesZhejiang University Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University) Ministry of EducationOrthopaedic DepartmentTongji HospitalBioinformatics DepartmentSchool of Life Sciences and TechnologyTongji University Frontier Science Center for Stem Cells School of Life Sciences and TechnologyTongji University Translational Medical Center for Stem Cell Therapy and Institute for Regenerative Medicine Shanghai East HospitalBioinformatics DepartmentSchool of Life Sciences and TechnologyTongji University Research Institute of Intelligent Computing Zhejiang Lab Shanghai Research Institute for Intelligent Autonomous Systems Center for Single-cell Omics School of Public HealthShanghai Jiao Tong University School of Medicine National Key Laboratory of Chinese Medicine Modernization Innovation Center of Yangtze River DeltaZhejiang University Center for Bioinformatics and Computational Biology Shanghai Key Laboratory of Regulatory Biologythe Institute of Biomedical Sciences and School of Life SciencesEast China Normal University Beijing Institutes of Life Science Chinese Academy of Sciences Peking-Tsinghua Center for Life Sciences Academy for Advanced Interdisciplinary StudiesCenter for Quantitative Biology (CQB)Peking University Zhejiang Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases Women's HospitalZhejiang University School of Medicine Key Laboratory of Advanced Theory and Application in Statistics and Data Science-MOE School of StatisticsEast China Normal University

Cells are the fundamental units of biological systems and exhibit unique development trajectories and molecular features. Our exploration of how the genomes orchestrate the formation and maintenance of each cell, and control the cellular phenotypes of various organismsis, is both captivating and intricate. Since the inception of the first single-cell RNA technology, technologies related to single-cell sequencing have experienced rapid advancements in recent years. These technologies have expanded horizontally to include single-cell genome, epigenome,proteome, and metabolome, while vertically, they have progressed to integrate multiple omics data and incorporate additional information such as spatial sc RNA-seq and CRISPR screening. Single-cell omics represent a groundbreaking advancement in the biomedical field,offering profound insights into the understanding of complex diseases, including cancers. Here, we comprehensively summarize recent advances in single-cell omics technologies, with a specific focus on the methodology section. This overview aims to guide researchers in selecting appropriate methods for single-cell sequencing and related data analysis.

关键词： single-cell sequencing genome epigenome proteomics metabolomics multimodal spatial transcriptomics CRISPR screening

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Ag纳米颗粒有机薄膜受激辐射增强研究

红外与毫米波学报 2011年第3期30卷 217-220页

作者：赵选科吴朝新徐国金梁世雄侯洵西安交通大学电子与信息工程学院陕西省信息光子技术重点实验室电子物理与器件教育部重点实验室陕西西安710049 西安洪庆高技术研究所物理室陕西西安710025

为进一步降低有机半导体材料的激射阈值,文章研究利用银纳米颗粒的表面等离子体共振效应来实现对有机半导体薄膜受激辐射的增强.将制备好的Ag纳米溶液旋涂于玻璃基底上,然后在其上再旋涂PS:Alq3:DCJTB有机薄膜发光层,构成平面波导结构.... 详细信息

为进一步降低有机半导体材料的激射阈值,文章研究利用银纳米颗粒的表面等离子体共振效应来实现对有机半导体薄膜受激辐射的增强.将制备好的Ag纳米溶液旋涂于玻璃基底上,然后在其上再旋涂PS:Alq3:DCJTB有机薄膜发光层,构成平面波导结构.用355nm波长的YAG激光泵浦样品。实验发现:相比于无Ag纳米颗粒情况,有Ag纳米颗粒时端面受激发射最大增强10.38倍,激射阈值从2.0mJ/cm2左右降低到0.5mJ/cm2左右;垂直表面受激发射最大增强6.13倍,激射阈值从2.5mJ/cm2左右降低到1.5mJ/cm2左右.该研究对实现低阈值有机半导体激光器具有重要意义.

关键词：光电子学与激光技术受激辐射增强表面等离子体共振 Ag纳米颗粒有机半导体激光器

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静力触探试验的宏细观耦合分析方法与应用

岩土力学 2021年第7期42卷 1815-1827页

作者：王长虹汤道飞王昆吴昭欣上海大学力学与工程科学学院土木工程系上海200444

圆锥静力触探试验(CPT)是一种准确获取常规岩土参数的土工原位测试方法,但是CPT数据一般不能直接转化为岩土力学宏观本构模型参数(即一类精细的岩土参数),根本原因是对宏细观贯入机制的研究不足。以Mohr-Coulomb屈服准则的圆柱(锥)孔扩... 详细信息

圆锥静力触探试验(CPT)是一种准确获取常规岩土参数的土工原位测试方法,但是CPT数据一般不能直接转化为岩土力学宏观本构模型参数(即一类精细的岩土参数),根本原因是对宏细观贯入机制的研究不足。以Mohr-Coulomb屈服准则的圆柱(锥)孔扩张理论为基础,建立静力触探试验过程的宏细观耦合分析方法。根据圆柱(锥)孔扩张理论求解极限扩孔应力,推导了锥尖阻力、侧摩阻力与极限扩孔应力之间的关系。以上海地区浅部持力层第(2)1粉质黏土为对象,通过相同尺度的三轴压缩试验,建立宏观Mohr-Coulomb理想弹塑性模型参数与细观线性平行黏结模型参数的转化公式,并通过Fish语言编入到FLAC^(3D)软件。以上海第(2)1层粉质黏土和第(5)_(1-1)层灰色黏土为对象,验证了宏细观转化公式对于上海黏土或者粉质黏土的适用性。以第(2)1层粉质黏土为对象,从宏观的角度分析锥尖阻力、侧摩阻力和极限扩孔应力的理论解、数值解与实测值的误差,从细观角度分析土体颗粒位移和接触力链分布。圆柱(锥)孔扩张理论计算的极限扩孔应力、锥尖阻力和侧摩阻力与实测值的误差分别为1.30%、0.45%和0.77%。宏细观耦合数值计算得到的极限扩孔应力、锥尖阻力、侧摩阻力和孔隙水压力与实测值的误差分别为9.68%、2.99%、9.34%和8.42%。宏细观耦合数值的计算结果不仅和圆柱(锥)孔扩张理论的计算结果以及实测值接近,还能考虑孔隙水压力的作用。以上研究为认识静力触探试验机制,获取岩土力学本构模型参数提供了宏细观耦合分析方法和基础。

关键词：静力触探试验孔扩理论宏细观力学耦合分析

近40年来中国湖泊叶绿素a浓度的时空分异特征分析

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海洋与湖沼 2024年第2期55卷 347-362页

作者：武昭鑫孔祥生徐兆鹏曾健刘鑫鲁东大学资源与环境工程学院山东烟台264025 中国资源卫星应用中心北京100094 北京信息科技大学北京100094

随着经济社会快速发展,中国湖泊表现出不同程度的富营养化,湖泊生态正面临着严峻挑战。叶绿素a是评价水体营养状态的重要指标,可以反映湖泊中浮游植物生物量情况。基于Landsat系列数据集,对1986~2022年间中国范围内面积在10 km^(2)以上... 详细信息

随着经济社会快速发展,中国湖泊表现出不同程度的富营养化,湖泊生态正面临着严峻挑战。叶绿素a是评价水体营养状态的重要指标,可以反映湖泊中浮游植物生物量情况。基于Landsat系列数据集,对1986~2022年间中国范围内面积在10 km^(2)以上湖泊叶绿素a浓度分布状况进行研究,并对各区域叶绿素a浓度演变趋势进行分析,结果表明:(1)中国湖泊叶绿素a浓度存在地域性空间分布差异。叶绿素a浓度分布整体呈现东南高,西北低的态势,大约69%的湖泊处于轻富营养化程度,中富营养化状态约占17%。以35°N和100°E为分界线,各区域叶绿素a浓度随经纬度呈现出一定的变化规律。(2)近40年间中国湖泊叶绿素a浓度年均值处于缓慢波动上升趋势,时间序列呈现先降低后升高,再降低的变化状态。所有湖泊叶绿素a浓度显著上升的数量占比约为30%,显著下降的占比约为24.8%,变化不显著的约占45.2%。整体变化较为稳定,变异系数处于中等波动水平以下,波动较大的区域位于青藏高原,东北地区和长江中下游的部分地区。(3)各流域内湖泊叶绿素a浓度时空分异特征表现为:空间分布上,内陆流域和西南流域普遍较低,珠江流域和东南流域较高。时间变化上,除了西南流域和内陆流域的湖泊叶绿素a浓度呈现下降趋势外,其他流域均为上升趋势。中国湖泊叶绿素a浓度呈现出明显的地域性差异和时间变化趋势,这主要归因于地区气候、水文条件、土地利用以及人类活动变化等因素。受温暖湿润气候和较强人类活动的影响,东南部地区的湖泊叶绿素a浓度相对较高。西北部地区气温偏低,降水较少,湖泊叶绿素a浓度普遍较低。近40年的时间尺度上,受城市化、工业化快速发展和全球气候变化的共同影响,中国整体湖泊叶绿素a浓度呈缓慢上升趋势。

关键词：中国湖泊遥感叶绿素a 时空分异

聚合物内封装层辅助空气中钙钛矿模组器件制备及其光电特性

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物理学报 2023年第24期72卷 343-352页

作者：徐洁冯泽华刘冰野朱欣怡代锦飞董化吴朝新西安建筑科技大学理学院西安710055 西安交通大学电子科学与工程学院陕西省信息光子技术重点实验室西安710049

传统的高效率钙钛矿太阳能电池,需要在具有氮气保护的严苛条件下方可实现.高湿度(55%)空气环境中,大面积钙钛矿成膜工艺开发及器件结构优化对模组器件效率和稳定性的提高至关重要.本工作采用一种真空抽气萃取方法在空气中实现了高质量... 详细信息

传统的高效率钙钛矿太阳能电池,需要在具有氮气保护的严苛条件下方可实现.高湿度(55%)空气环境中,大面积钙钛矿成膜工艺开发及器件结构优化对模组器件效率和稳定性的提高至关重要.本工作采用一种真空抽气萃取方法在空气中实现了高质量钙钛矿薄膜的制备,并研究了双端可低温光聚合单体分子对钙钛矿薄膜内封装的可行性.研究发现,当抽气时间为60 s,在空气中可以形成均匀、致密的钙钛矿薄膜.通过调控单体分子浓度,能够在内封装的同时,实现对钙钛矿表面缺陷的钝化,当浓度为1 mg/mL时,对应钙钛矿薄膜的形貌及荧光强度达到最优.最终,基于聚合物内封装修饰的刚性和柔性模组(有效面积:18 cm^(2))器件分别实现了19.51%和18.17%的室外光电转化效率(34.5%和30.2%的室内弱光转化效率).此外,聚合物内封装提升器件湿度稳定性及抑制铅泄漏的同时,也显著提升了柔性模组的耐弯折稳定性.聚合物内封装技术为未来大面积模组器件的发展及进一步产业应用提供了新的方向和可能.

关键词：钙钛矿太阳能电池模组低温光聚合聚合物内封装

A new horizon for neuroscience:terahertz biotechnology in brain research

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Neural Regeneration Research 2025年第2期20卷 309-325页

作者： Zhengping Pu Yu wu Zhongjie Zhu Hongwei zhao Donghong Cui Shanghai Key Laboratory of Psychotic Disorders Shanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina Department of Psychiatry Kangci Hospital of JiaxingTongxiangZhejiang ProvinceChina Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghaiChina Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied PhysicsChinese Academy of ScienceShanghaiChina National Facility for Protein Science in Shanghai Shanghai Advanced Research InstituteChinese Academy of SciencesShanghaiChina

Terahertz biotechnology has been increasingly applied in various biomedical fields and has especially shown great potential for application in brain *** this article,we review the development of terahertz biotechnology and its applications in the field of *** evidence indicates promising prospects for the use of terahertz spectroscopy and terahertz imaging techniques in the diagnosis of amyloid disease,cerebrovascular disease,glioma,psychiatric disease,traumatic brain injury,and myelin *** vitro and animal experiments have also demonstrated the potential therapeutic value of terahertz technology in some neuropsychiatric *** the precise underlying mechanism of the interactions between terahertz electromagnetic waves and the biosystem is not yet fully understood,the research progress in this field shows great potential for biomedical noninvasive diagnostic and therapeutic ***,the biosafety of terahertz radiation requires further exploration regarding its two-sided efficacy in practical *** review demonstrates that terahertz biotechnology has the potential to be a promising method in the field of neuropsychiatry based on its unique advantages.

关键词： biological effect brain neuron neuropsychiatry neuroscience non-thermal effect terahertz imaging terahertz radiation terahertz spectroscopy terahertz technology