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

海因茨单壁碳纳米管构成了一维材料家族，具有许多显著的性能。这项研究计划的目标是提供完全定义结构的单个单壁碳纳米管的电子、光电、机械和热学性质的全面测量。实验方法依赖于自由悬浮纳米管在硅衬底上的狭缝中生长。瑞利和拉曼光谱的光学表征将探测纳米管的电子和振动性质，结果将与纳米管的直接结构表征相关联。金属垫在衬底上的蒸发将使光电子学、热学和机械研究成为可能。调查将由一个由机械工程、材料科学、电气工程、化学和物理研究人员组成的多学科小组进行；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。拟议的工作将促进碳纳米管性质的基本知识的进步。对该模型体系的研究，加深了对降维材料的科学认识。研究结果对电子学、光电子学、传感器和结构材料等领域的广泛潜在应用也具有重要意义。该计划的教育影响延伸到对研究生和博士后的跨学科培训，以及本科生对研究计划的重大参与。纽约城市大学和罗文大学城市学院的学生和教职员工的综合参与进一步加强了教育影响。

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.