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Nano Research 2023年第8期16卷 11296-11302页

作者： Zhao Han Bo Wang Jie You Qiancui Zhang Yichi Zhang Tian Miao Ningning Zhang Dongdong Lin zuimin jiang Renxu Jia Jincheng Zhang Hui Guo Huiyong Hu Liming Wang Key Laboratory of Analog Integrated Circuits and Systems Ministry of EducationSchool of MicroelectronicsXidian UniversityXi’an 710071China Qian Xuesen Collaborative Research Center of Astrochemistry and Space Life Sciences Department of Microelectronic Science and EngineeringNingbo UniversityNingbo 315211China Department of Physics Fudan UniversityShanghai 200433China

The contradiction between the high number of visually handicapped people and the scarcity of guide dogs has stimulated the demand for electronic guide dogs(EGDs).Here,we demonstrate an EGD by leveraging piezoresistors on a MoS_(2)/Ge heterostructure for simultaneous pressure-sensing and optical-sensing functions.The device has excellent gating capability and exhibits large positive and negative photoresponses under visible(532 nm,182 A/W)and infrared(1550 nm,37 A/W)illumination.These characteristics allow the device to efficiently classify different obstacles at all times of day using pressure and light signals.The device reaches nearly 100%accuracy after 48 training sessions when used to classify frequent scenes.The device adopts passive and active detection modes during the day and night,respectively,which improves the battery life of the EGD.This work provides a significant reference for the future design of EGDs,which may help a greater number of visually impaired people by reducing the cost of such devices.

关键词： electronic guide dogs dual-band photodetection pressure and light synergy work round the clock

Simulating tactile and visual multisensory behaviour in humans based on an MoS_(2) field effect transistor

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Nano Research 2023年第5期16卷 7405-7412页

作者： Jie You Liming Wang Yichi Zhang Dongdong Lin Bo Wang Zhao Han Ningning Zhang Tian Miao Maliang Liu zuimin jiang Hui Guo Yimeng Zhang Jincheng Zhang Huiyong Hu Wide Bandgap Semiconductor Technology Disciplines State Key Laboratory School of Microelectronics Xidian UniversityXi’an 710071China Qian Xuesen Collaborative Research Center of Astrochemistry and Space Life Sciences Department of Microelectronic Science and EngineeringNingbo UniversityNingbo 315211China Department of Physics Fudan UniversityShanghai 200433China

A visual and tactile multisensory integrated system is essential for human walking due to the demand for real-time interactions between perception and action.Here,a piezoresistor and MoS_(2)field effect transistor are combined to construct an artificial integration nervous system to simulate perception and synaptic plasticity.The key characteristics of synaptic plasticity are successfully demonstrated by individual pressure signals,individual optical signals,the synergy of optical and pressure signals,which are based on the electron trapping–detrapping mechanism at the MoS_(2)/SiO_(2)interface.We demonstrate that perception under synergy is stronger than perception under optical or pressure signal alone,which is similar to a biological system.Moreover,various distinguishable motion scenarios(combination of the following conditions:external lighting environment of day or night,flat or rough road,movement state of walking or running)are simulated and verified by adjusting the amplitude and frequency of the optical and pressure signals.

关键词： visual tactile multisensory system motion scenarios

Controllable growth of GeSi nanostructures by molecular beam epitaxy

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Journal of Semiconductors 2018年第6期39卷 51-65页

作者： Yingjie Ma Tong Zhou Zhenyang Zhong zuimin jiang State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences State Key Laboratory of Surface Physics Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education) and Department of PhysicsFudan University School of Physics and Optoelectronic Engineering Shandong University of Technology

We present an overview on the recent progress achieved on the controllable growth of diverse GeSi al- loy nanostructures by molecular beam epitaxy. Prevailing theories for controlled growth of Ge nanostructures on patterned as well as inclined Si surfaces are outlined firstly, followed by reviews on the preferential growth of Ge nanoislands on patterned Si substrates, Ge nanowires and high density nanoislands grown on inclined Si surfaces, and the readily tunable Ge nanostructures on Si nanopillars. Ge nanostructures with controlled geometries, spatial distributions and densities, including two-dimensional ordered nanoislands, three-dimensional ordered quantum dot crystals, ordered nanorings, coupled quantum dot molecules, ordered nanowires and nanopillar alloys, are dis- cussed in detail. A single Ge quantum dot-photonic crystal microcavity coupled optical emission device demon- stration fabricated by using the preferentially grown Ge nanoisland technique is also introduced. Finally, we sum- marize the current technology status with a look at the future development trends and application challenges for controllable growth of Ge nanostructures.

关键词： Ge Si molecular beam epitaxy nanostructures controllable patterned substrates inclinedsurfaces preferential growth

Rational design of novel ultra-small amorphous Fe_(2)O_(3)nanodots/graphene heterostructures for all-solid-state asymmetric supercapacitors

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Nano Research 2021年第4期14卷 953-960页

作者： Chenxiao Wu Zhifang Zhang Zhonghui Chen zuimin jiang Huiyu Li Haijing Cao Yongsheng Liu Yanyan Zhu Zebo Fang Xiangrong Yu College of Mathematics and Physics Shanghai University of Electric PowerShanghai 200090China Key Lab for Special Functional Materials of Ministry of Education School of Materials Science and EngineeringHenan UniversityKaifeng 475004China Department of Physics Fudan UniversityShanghai 200433China Department of Physics Shaoxing UniversityShaoxing 312000China Department of Medical Imaging Zhuhai Peoples HospitalZhuhai Hospital affiliated with Jinan UniversityZhuhai 519000China

Constructing graphene-based heterostructures with large interfacial area is an efficient approach to enhance the electrochemical performance of supercapacitors but remains great challenges in their synthesis.Herein,a novel ultra-small amorphous Fe_(2)O_(3)nanodots/graphene heterostructure(a-Fe_(2)O_(3)NDs/RGO)aerogel was facilely synthesized via excessive metal-ion-induced self-assembly and subsequent calcination route using Prussian blue/graphene oxide(PB/GO)composite aerogel as precursors.The deliberately designed a-Fe_(2)O_(3)NDs/RGO heterostructure offers a highly interconnected porous conductive network,large heterostructure interfacial area,and plenty of accessible active sites,greatly facilitating the electron transfer,electrolyte diffusion,and pseudocapacitive reactions.The obtained a-Fe_(2)O_(3)NDs/RGO aerogel could be used as flexible free-standing electrodes after mechanical compression,which exhibited a significantly enhanced specific capacitance of 347.4 F·g^(-1)at 1 A·g^(-1),extraordinary rate capability of 184 F·g^(-1)at 10 A·g^(-1),and decent cycling stability.With the as-prepared a-Fe_(2)O_(3)NDs/RGO as negative electrodes and the Co_(3)O_(4)NDs/RGO as positive electrodes,an all-solid-state asymmetric supercapacitor(a-Fe_(2)O_(3)NDs/RGO//Co_(3)O_(4)NDs/RGO asymmetric supercapacitor(ASC))was assembled,which delivered a high specific capacitance of 69.1 F·g^(-1)at 1 A·g^(-1)and an impressive energy density of 21.6 W·h·k·g^(-1)at 750 W·k·g^(-1),as well as good cycling stability with a capacity retention of 94.3%after 5,000 cycles.This work provides a promising avenue to design high-performance graphene-based composite electrodes and profound inspiration for developing advanced flexible energy-storage devices.

关键词： graphene heterostructures amorphous Fe_(2)O_(3) Co_(3)O_(4) all-solid-state asymmetric supercapacitors

练好内功教好物理——2023年全国高等学校物理基础课程青年教师讲课比赛华东地区赛感想

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物理与工程 2023年第5期33卷 9-10页

作者：蒋最敏复旦大学物理学系上海200433

作为评委作者参加了2023年全国高等学校物理基础课程青年教师讲课比赛华东地区赛活动。本文对这次比赛活动中教师的表现和比赛过程,包括提问环节作些评论,鼓励青年教师热爱教学、练好内功和教好物理。

关键词：大学物理讲课比赛选手表现夯实教学功底教好物理

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自组织SiGe量子环的生长与形貌维持

Journal of Semiconductors 2006年第Z1期27卷 148-150页

作者：李防化蒋最敏复旦大学应用表面物理国家重点实验室上海200433 复旦大学应用表面物理国家重点实验室上海200433

研究了640℃部分覆盖SiGe量子点时量子点向量子环的转变.从应变的角度解释了量子环的形成机制.研究发现在350℃以下覆盖量子环时可以使量子环形貌得到很好的维持.从动力学的角度解释了低温下覆盖SiGe量子环时其形貌得到维持的原因.

关键词：量子点量子环 SiGe MBE

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锗硅量子点掠入射小角X射线散射研究

核技术 2008年第4期31卷 250-254页

作者：王玉柱贾全杰陈雨薛宪营姜晓明崔健林健晖蒋最敏何庆中国科学院高能物理研究所北京100049 复旦大学表面物理实验室上海200433 中国科学院上海应用物理研究所上海201800

采用同步辐射X射线对MBE制备的锗硅量子点试样进行了掠入射小角X射线散射(GISAXS,grazing incidence small angle X-ray scattering)研究。根据AFM测量得到的量子点尺寸、形状和间距等参数,采用DWBA理论以及合适的分布函数,利用IsGISAX... 详细信息

采用同步辐射X射线对MBE制备的锗硅量子点试样进行了掠入射小角X射线散射(GISAXS,grazing incidence small angle X-ray scattering)研究。根据AFM测量得到的量子点尺寸、形状和间距等参数,采用DWBA理论以及合适的分布函数,利用IsGISAXS程序对一维和二维GISAXS测量结果进行了模拟,模拟结果与实验数据符合很好,表明GISAXS是一种探测锗硅量子点尺寸、形状和分布等结构信息有效的方法。

关键词：锗硅量子点掠入射小角X射线散射

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在大学物理力学中的课程思政实践

物理与工程 2021年第3期31卷 92-96页

作者：蒋最敏魏心源复旦大学物理学系/上海市物理教育教学研究基地上海200433

课程思政建设是为了在尊重课程自身建设规律的前提下,实现价值引领、知识传授、能力培养三位一体的课程目标。课程思政建设和课程质量提升的内在目标应是一致的。我们以“大学物理A:力学”课程中变质量体系和角动量守恒定律的教学实践为... 详细信息

课程思政建设是为了在尊重课程自身建设规律的前提下,实现价值引领、知识传授、能力培养三位一体的课程目标。课程思政建设和课程质量提升的内在目标应是一致的。我们以“大学物理A:力学”课程中变质量体系和角动量守恒定律的教学实践为例,对教学内容深化、拓展,结合中国火箭技术发展和矢量发动机研制成果以及在脉冲星导航技术研究方面的探索,把课程思政教育自然融入专业教育。无论在知识内容的深度和广度上,还是在知识内容实际应用的感性认识方面,课程质量和育人效果都得到了明显提升,实现课程思政教育和课程质量相互促进、相得益彰。

关键词：课程思政大学物理力学变质量体系角动量守恒定律

Er2O3单晶薄膜的生长及Er2O3/Si异质结的能带偏移

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Journal of Semiconductors 2006年第Z1期27卷 411-414页

作者：朱燕艳徐闰陈圣方泽波薛菲樊永良蒋最敏上海电力学院上海200090 复旦大学应用表面物理国家重点实验室上海200433 复旦大学应用表面物理国家重点实验室上海200433 复旦大学应用表面物理国家重点实验室上海200433 复旦大学应用表面物理国家重点实验室上海200433 复旦大学应用表面物理国家重点实验室上海200433 复旦大学应用表面物理国家重点实验室上海200433

利用分子束外延方法在p型Si(001)和Si(111)衬底上,在700℃0.93mPa的条件下实现了Er2O3单晶薄膜的生长.薄膜的结晶情况依赖于薄膜的生长温度和氧气压.较低的温度和氧气压下在薄膜内易生成硅化铒,薄膜也趋于多晶化.还利用光电子能谱对Er2O... 详细信息

利用分子束外延方法在p型Si(001)和Si(111)衬底上,在700℃0.93mPa的条件下实现了Er2O3单晶薄膜的生长.薄膜的结晶情况依赖于薄膜的生长温度和氧气压.较低的温度和氧气压下在薄膜内易生成硅化铒,薄膜也趋于多晶化.还利用光电子能谱对Er2O3/Si异质结的能带偏差进行了初步的研究.

关键词： Er2O3 异质结晶体生长

退火过程中自组织生长 Ge量子点的变化(英文)

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Journal of Semiconductors 2002年第6期23卷 561-564页

作者：胡冬枝杨建树蔡群张翔九胡际璜蒋最敏复旦大学应用表面物理国家重点实验室上海200433

在超高真空系统中 ,用扫描隧道显微镜 (STM)和原子力显微镜 (AFM)研究了自组织生长的 Ge量子点经不同温度退火后的变化 .实验发现 ,当退火温度为 6 30℃时 ,出现了许多新的量子点 .与原来的在分子束外延过程中形成的无失配位错的量子点... 详细信息

在超高真空系统中 ,用扫描隧道显微镜 (STM)和原子力显微镜 (AFM)研究了自组织生长的 Ge量子点经不同温度退火后的变化 .实验发现 ,当退火温度为 6 30℃时 ,出现了许多新的量子点 .与原来的在分子束外延过程中形成的无失配位错的量子点相比。

关键词：量子点硅基材料形貌评价 AFM 原子力显微镜锗量子退火位错