CAREER: Graphene Nanomesh: Band Gap Engineering in Single Layers of Carbon

职业：石墨烯纳米网：单层碳的带隙工程

• 批准号: 0956171
• 负责人: Xiangfeng Duan
• 金额: $ 54.5万
• 依托单位: University of California-Los Angeles
• 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: 2010-03-01 至 2015-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0956171&HistoricalAwards=false
• 关键词: CAREER; Graphene; Nanomesh; Band; Gap

Technical: The research program of this CAREER award focuses on a new graphene nanostructure, graphene nanomesh, which can effectively introduce lateral quantum confinement into a large piece of graphene to form a uniform semiconducting nanomesh thin film. Using block copolymer lithography or nanodot lithography, graphene nanomeshes are fabricated with variable periodicities and neck widths down to the sub-5 nm regime, and hence to fine tune the degree of lateral quantum confinement and the size of the band gap. The nanomesh structures are characterized using scanning probe microscopy and transmission electron microscopy. In addition to fundamental materials science research, the project includes electrical transport studies in order to determine the critical material parameters including the band gap and carrier mobility, theoretical calculations carried out through collaborations to understand the fundamental band structure of this new graphene nanostructure and to guide experimental optimization, and fabrication of testing top-gated graphene nanomesh devices.Non-technical: The project addresses basic research issues in a topical area of materials science with high technological relevance. The success of the project is expected to have impacts on the further advancement of nanoelectronics and, in general, nanoscience and nanotechnology. The research and education programs of the project are integrated. The research program provides graduate students with an education and training opportunity that is broadly based and goes beyond traditional educational boundaries. Underrepresented groups are actively recruited to participate in the research program. A partnership with industry for education is developed for students to gain first-hand experience in industry and to better prepare them as the future workforce for emerging technologies. The materials and methodologies developed in this project are integrated into graduate and undergraduate courses to broaden the education experience beyond the PI's lab; and are used to train high school teachers and design experimental kits for high school science classes to reach the local communities beyond the university. Together, these efforts contribute significantly to train and supply a steady and diversified source of highly qualified individuals for emerging technologies, and contribute to maintain the competitive advantage of America's technology.

技术：该职业生涯奖的研究计划着重于新的石墨烯纳米结构石墨烯纳米什，该纳米什可以有效地将横向量子限制引入大型石墨烯中，以形成均匀的半导体纳米丝薄膜。使用块共聚物光刻或纳米光刻，将石墨烯纳米丝通过可变的周期性和颈部宽度制成，直至低于5 nm的状态，因此可以微调侧向量子限制的程度和带隙的尺寸。使用扫描探针显微镜和透射电子显微镜表征纳米什结构。 In addition to fundamental materials science research, the project includes electrical transport studies in order to determine the critical material parameters including the band gap and carrier mobility, theoretical calculations carried out through collaborations to understand the fundamental band structure of this new graphene nanostructure and to guide experimental optimization, and fabrication of testing top-gated graphene nanomesh devices.Non-technical: The project addresses basic research issues in a topical area of​​ materials science with high技术相关性。预计该项目的成功将对纳米电子学的进一步发展产生影响，总的来说，纳米科学和纳米技术。该项目的研究和教育计划已整合。该研究计划为研究生提供了广泛基于的教育和培训机会，超越了传统的教育界限。积极招募代表性不足的群体参加研究计划。与行业的教育合作伙伴关系是为学生创建的，以获得工业领域的第一手经验，并更好地为新兴技术的未来劳动力做好准备。该项目中开发的材料和方法融入了研究生和本科课程，以将教育经验扩大到PI的实验室之外；并用于培训高中教师和设计实验套件，以供高中科学课程访问大学以外的当地社区。这些努力共同为培训和提供高素质个人的稳定而多元化的来源为新兴技术做出了巨大贡献，并为维持美国​​技术的竞争优势做出了贡献。