NIRT/SNB: Combined Optical, Electrical, Mechanical, and Thermal Characterization of Individual Nanotubes

单壁碳纳米管是一类一维材料，具有许多显著的性能。本研究计划的目标是提供完整结构的单个单壁碳纳米管的电子、光电、机械和热性能的综合测量。实验方法依赖于在硅衬底的狭缝中自由悬浮的纳米管的生长。瑞利光谱和拉曼光谱的光学表征将探测纳米管的电子和振动特性，结果将与纳米管的直接结构表征相关。金属衬垫在衬底上的蒸发将使光电、热学和力学研究成为可能。研究将由一个多学科团队进行，研究人员来自机械工程、材料科学、电气工程、化学和物理；该小组将与政府实验室和工业界的研究人员进行强有力的互动。这项工作将在碳纳米管性质的基础知识方面取得进展。该模型系统的研究增强了对降维材料的科学认识。该结果对于电子、光电子、传感器和结构材料等领域的广泛潜在应用也很重要。该计划的教育影响扩展到研究生和博士后的跨学科培训，以及本科生在研究计划中的重要参与。纽约城市大学城市学院和罗文大学的学生和教师的综合参与进一步增强了教育影响。

0507111HeinzSingle-wall carbon nanotubes constitute a family of one-dimensional materials exhibiting many remarkable properties. The goal of this research program is to provide comprehensive measurements of the electronic, optoelectronic, mechanical, and thermal properties of individual single-walled carbon nanotubes of fully defined structure. The experimental approach relies on the growth of freely suspended nanotubes across a slit in a silicon substrate. Optical characterization by Rayleigh and Raman spectroscopy will probe the electronic and vibrational properties, and the results will be correlated with direct structural characterization of the nanotubes. Evaporation of metallic pads onto the substrates will enable optoelectronic, thermal, and mechanical studies. The investigations will be carried out by a multidisciplinary team with researchers in Mechanical Engineering, Materials Science, Electrical Engineering, Chemistry, and Physics; the team will be complemented by strong interactions with researchers at government laboratories and in industry.The proposed work will generate advances in the basic knowledge of the properties of carbon nanotubes. Studies of this model system enhance the scientific understanding of materials of reduced dimensionality. The results are also importance for a wide range of potential applications, in the areas including electronics, optoelectronics, sensors, and structural materials. The educational impact of the program extends to interdisciplinary training of graduate students and postdocs, as well as to significant participation of undergraduates in the research program. The educational impact is further enhanced by the integrated involvement of students and faculty at the City College of the City University of New York and Rowan University.