Nanoscale Sensing of the Chemical and Physical Properties of Two-Dimensional Materials and Interfaces Using Scanning Probe Microscopy

使用扫描探针显微镜对二维材料和界面的化学和物理性质进行纳米级传感

• 批准号: 1012058
• 负责人: George Flynn
• 金额: $ 52.8万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-08-01 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1012058&HistoricalAwards=false
• 关键词: Nanoscale; Sensing; Chemical; Physical; Properties

Professor George W. Flynn of Columbia University is supported by the Macromolecular, Supramolecular, Nanochemistry (MSN) Program in the Division of Chemistry to conduct a series of related studies on graphene to reveal the nanoscale structure and dynamic properties of molecules at interfaces. More specifically, the PI proposes to: (1) investigate the structural and electronic properties of graphene; (2) determine the charge doping characteristics of halogens and metal atoms adsorbed on graphene sheets; (3) study the potential effectiveness of graphene as a membrane filter with controlled porosity; and (4) probe the atomic level structure and properties of hexagonal boron nitride and its potential interactions with graphene and graphite. The studies are primarily conducted using Scanning Tunneling Microscopy (STM).The overarching objective of these studies is the elucidation of the driving forces that control interfacial properties and self organization of molecules on graphene. The results will impact the next generation nanoscale optical and electronic devices. The project involves direct participation by undergraduate female students. The educational activities also include the development of education material on Nanoscience and Nanotechnology for Columbia University Summer and Saturday science enhancement experiences for high school students.

教授乔治W。哥伦比亚大学的Flynn得到化学系大分子、超分子、纳米化学（MSN）项目的支持，对石墨烯进行了一系列相关研究，以揭示分子在界面处的纳米级结构和动力学性质。更具体地说，PI建议：（1）研究石墨烯的结构和电子特性;（2）确定吸附在石墨烯片上的卤素和金属原子的电荷掺杂特性;（3）研究石墨烯作为具有受控孔隙率的膜过滤器的潜在有效性;以及（4）探测六方氮化硼的原子水平结构和性质及其与石墨烯和石墨的潜在相互作用。这些研究主要是使用扫描隧道显微镜（STM）进行的。这些研究的首要目标是阐明控制石墨烯上分子的界面性质和自组织的驱动力。这些结果将影响下一代纳米级光学和电子器件。该项目由女大学生直接参与。教育活动还包括为哥伦比亚大学夏季和周六的高中生科学增强体验开发纳米科学和纳米技术教育材料。