Electrons and Phonons in Carbon and Related Materials, Including Fibers

碳及相关材料（包括纤维）中的电子和声子

• 批准号: 9201878
• 负责人: Mildred Dresselhaus
• 金额: --
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-08-01 至 1995-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9201878&HistoricalAwards=false
• 关键词: Electrons; Phonons; Carbon; Related; Materials

Fundamental research to understand basic electron-phonon interac- tions in C60 molecules(bucky balls) and related materials including fibers will be conducted. With respect to C60 the emphasis is on understanding vibrational modes and electron- phonon interactions utilizing femtosecond laser pulse-probe and high magnetic field techniques. The research is of particular interest for providing a sounder scientific basis for understanding the properties of the newly discovered carbon molecules such as C60, and fiber analogs to C60 which can be viewed as a single graphene (crystalline graphite) layer rolled up to form a cylinder with each of its ends fitting perfectly to half of a bucky ball. %%% This research is expected to provide deeper fundamental understanding of basic properties of new carbon molecules and fibers which are potential functional electronic/photonic materials. From an application point of view, understanding these properties and their relationship to materials synthesis and processing is beneficial to advanced technologies related to computing, information processing, and telecommunications.

将进行基础研究，以了解C60分子(巴基球)和包括纤维在内的相关材料中的基本电子-声子相互作用。关于C60，重点是利用飞秒激光脉冲探头和强磁场技术了解振动模式和电子-声子相互作用。这项研究特别令人感兴趣的是，为了解新发现的碳分子(如C60和类似C60的纤维)的性质提供了更可靠的科学基础，C60可以被视为单个石墨烯(晶态石墨)层卷成一个圆柱体，其两端恰好适合半个巴基球。这项研究有望对新型碳分子和纤维的基本性质提供更深层次的基础了解，这些碳分子和纤维是潜在的功能电子/光子材料。从应用的角度来看，了解这些性质及其与材料合成和加工的关系，有助于与计算、信息处理和电信相关的先进技术。