MRI: Acquisition of a Shared Atomic Force Microscope System

MRI：获取共享原子力显微镜系统

• 批准号: 1626288
• 负责人: YuHuang Wang
• 金额: $ 25.66万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-08-15 至 2019-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1626288&HistoricalAwards=false
• 关键词: MRI; Acquisition; Shared; Atomic; Force

With this award from the Major Research Instrumentation (MRI) and Chemistry Research Infrastructure and Facilities programs, Professor YuHuang Wang from the University of Maryland College Park and colleagues Janice Reutt-Robey, Lawrence Sita, Chunsheng Wang and Liangbing Hu have acquired an atomic force microscope system. In an AFM a laser beam is directed to a surface by means of a cantilever and tip. As the cantilever is displaced by interacting with the surface, a reflection of the laser beam is displayed on a detector (photodiode). In this way an image of the surface can be created with the aid of an electronic system. In general, an AFM has three major abilities: force measurement, imaging, and manipulation. The microscope is an important tool in the investigation of the surfaces of materials. It is used in fundamental and applied research to study morphology of surfaces, surface imaging and functionalization, electrical, magnetic, chemical and mechanical properties of surfaces. This knowledge enables advances in developing better materials in fields such as nanoscience and energy science. The instrument is used in the research and training of undergraduate and graduate students preparing them for technical careers and opportunities for advanced education. The proposal is aimed at enhancing research and education at all levels, especially in: (a) studying nanoparticle transport and internalization at model interfaces, (b) probing quantum defects in low-dimensional carbon materials, (c) mapping peak current and peak force of carbon nanoparticles in covetics, (d) imaging small circuits on glass, (e) studying living polymerization and direct assembly of precision polyolefins, (f) assessing the integrity and stability of xeolite membranes, (g) understanding and tailoring designing of solid state interphases for nanostructured silicon electrodes and (h) studying solid electrode interface formation, structure and evolution of molybdenum disulfide.

凭借主要研究仪器（MRI）和化学研究基础设施和设施计划的这一奖项，来自马里兰州大学帕克分校的YuHuang Wang教授及其同事Janice Mittt-Robey，Lawrence Sita，Chunsheng Wang和Liangbing Hu获得了原子力显微镜系统。在原子力显微镜中，激光束通过悬臂梁和针尖被引导到表面。当悬臂通过与表面相互作用而移位时，激光束的反射显示在检测器（光电二极管）上。以这种方式，可以在电子系统的帮助下创建表面的图像。通常，AFM具有三种主要能力：力测量、成像和操作。显微镜是研究材料表面的重要工具。它用于基础和应用研究，以研究表面的形态，表面成像和功能化，表面的电，磁，化学和机械性能。这些知识使在纳米科学和能源科学等领域开发更好的材料取得了进展。该仪器用于本科生和研究生的研究和培训，使他们为技术职业和高等教育机会做好准备。 该提案旨在加强各级的研究和教育，特别是在以下方面：（a）研究模型界面处的纳米颗粒传输和内化，（B）探测低维碳材料中的量子缺陷，（c）绘制covetics中碳纳米颗粒的峰值电流和峰值力，（d）在玻璃上成像小电路，（e）研究精密聚烯烃的活性聚合和直接组装，（f）评估xeolite膜的完整性和稳定性，（g）理解和定制纳米结构硅电极的固态界面设计，以及（h）研究固体电极界面形成、二硫化钼的结构和演变。

项目成果

One-Pot, Large-Scale Synthesis of Organic Color Center-Tailored Semiconducting Carbon Nanotubes

• DOI: 10.1021/acsnano.9b04087
• 发表时间: 2019-07-01
• 期刊: ACS NANO
• 影响因子: 17.1
• 作者: Luo, Hong-Bin;Wang, Peng;Wang, YuHuang
• 通讯作者: Wang, YuHuang

Probing the electrical double layer by operando X‐ray photoelectron spectroscopy through a graphene‐carbon nanotube composite window

• DOI: 10.1002/eom2.12023
• 发表时间: 2020-06
• 作者: Peng Wang;Yunfeng Li;Luning Wang;J. Kłos;Zhiwei Peng;N. Kim;H. Bluhm;K. Gaskell;Ping Liu;S. B. Lee;B. Eichhorn;YuHuang Wang

Fluorescent Ultrashort Nanotubes from Defect-Induced Chemical Cutting

缺陷诱导化学切割产生的荧光超短纳米管

• DOI: 10.1021/acs.chemmater.9b01196
• 发表时间: 2019
• 期刊: Chemistry of Materials
• 影响因子: 8.6
• 作者: Li, Yunfeng;Wu, Xiaojian;Kim, Mijin;Fortner, Jacob;Qu, Haoran;Wang, YuHuang
• 通讯作者: Wang, YuHuang