CAREER: Outerwall-selectively Functionalized Double-Wall Carbon Nanotubes--Optical and Electrical Properties of Semiconducting Nanotubes in a Multifunctional Carbon Shell

化学系的大分子、超分子和纳米化学（MSN）项目将支持马里兰州大学帕克分校的王宇煌教授的职业研究和教育项目。王教授和他的学生将为双壁碳纳米管开发新的功能化化学，这将保留原始单壁碳纳米管的显着光学和电子特性。这种外壁概念代表了与利用单壁碳纳米管并专注于通过精细表面改性保护其特性的当前方法的显著偏离。王教授和他的学生将测量双壁碳纳米管的内管的光学和电学输运性质，并将其与原始单壁纳米管、双壁纳米管和功能化单壁纳米管进行比较。这些努力将为碳纳米材料化学提供新的思路，并为研究人员提供新的化学和纳米计量学工具，以揭示和控制局部化学环境如何介导纳米结构的电子特性。壁碳纳米管有广泛的应用，例如作为电子器件和太阳能电池的涂层以及作为生物医学成像探针和药物送货员 王教授的CAREER教育计划包括为高中生（包括来自纳米科学和纳米技术领域代表性不足群体的学生）开发纳米材料创新课程和外展活动。

The Macromolecular, Supramolecular and Nanochemistry (MSN) program of the Division of Chemistry will support the CAREER research and education program of Prof. YuHuang Wang of University of Maryland College Park. Prof. Wang and his students will develop new functionalization chemistry for double-wall carbon nanotubes, which will retain the remarkable optical and electronic properties of pristine single-walled carbon nanotubes. This outerwall concept represents a significant departure from current approaches that utilize single wall carbon nanotubes and focus on protecting their properties through delicate surface modifications. Prof. Wang and his students will measure the optical and electrical transport properties of the inner tube of double wall carbon nanotubes and benchmark them against those of pristine single-walled nanotubes, double-wall nanotubes and functionalized single-walled nanotubes. These efforts will shed new light on carbon nanomaterials chemistry and afford researchers new chemical and nanometrology tools to reveal and control how local chemical environments mediate the electronic properties of nanostructures.Successful completion of the proposed study will enable the use of double-wall carbon nanotubes in a wide range of applications for example as coatings in electronic devices and solar cells and as biomedical imaging probes and drug delivery carriers. The CAREER educational plans of Prof. Wang involve the development of an innovative curriculum in nanomaterials and outreach activities for high school students including students from under-represented groups in the area of nanoscience and nanotechnology.