EAGER: Synthesis, Material Investigation and Device Effect Demonstration of Nano Diamond Wires

EAGER：纳米金刚石线的合成、材料研究和器件效应演示

• 批准号: 1324776
• 负责人: Jimmy Xu
• 金额: $ 20.58万
• 依托单位: Brown University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-07-01 至 2015-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1324776&HistoricalAwards=false
• 关键词: EAGER; Synthesis; Material; Investigation; Device

The objective of this program is to begin the exploration of the feasibility, phase-transition conditions and growth mechanism of a new allotrope of carbon diamond nanowires. Through this exploration, the team will try to establish an understanding of the basic science underlying and a synthetic process for reproducible growth of diamond nanowires. The objective will be met through iterative cycles of synthesis, materials characterization, and device effect demonstration. The intellectual merit of the proposed project is in proving the existence and feasibility of synthesizing a new form of carbon - diamond nanowires, in understanding their synthesis that apparently could take place so-far only at an extraordinarily low temperature and pressure, both of which being greatly lower than the corresponding conditions known as required for the diamond-graphite phase-transitions. Successful completion of this Early-Concept study could help door to further advances in the broad carbon-electronic revolution exemplified by C60, carbon nanotube, and graphene, only this time on the diamond (SP3-bond) side of the family. It could help enrich the classical phase-transition theory with the effects of nano-scale capillary pressure and the surface charges in the nano-regime. The broader impact of this research project are expected in two primary areas; 1) The advancement of fundamental science in the nano-scale regime of the diamond-graphite phase-transitions, 2) international collaboration between USA, Korea, Australia, and Domenico Republic, with many students participating and contributing to the common goal of bringing to existence of yet another new form of carbon nanostructures diamond nanowires.

该项目的目的是开始探索碳金刚石纳米线的新同素异形体的可行性，相变条件和生长机制。通过这一探索，该团队将试图建立对金刚石纳米线可再生生长的基础科学和合成过程的理解。目标将通过合成，材料表征和器件效果演示的迭代循环来实现。该项目的智力价值在于证明了合成一种新形式的碳-金刚石纳米线的存在和可行性，并理解了迄今为止它们的合成显然只能在极低的温度和压力下进行，这两种温度和压力都远远低于金刚石-石墨相变所需的相应条件。这项早期概念研究的成功完成将有助于进一步推进碳电子革命，例如C60、碳纳米管和石墨烯，只是这次是在金刚石（sp3键）方面。研究纳米尺度毛细压力和表面电荷的影响有助于丰富经典相变理论。预计这项研究项目将在两个主要领域产生更广泛的影响；1)纳米级金刚石-石墨相变基础科学的进步；2)美国、韩国、澳大利亚和多米尼加共和国之间的国际合作，许多学生参与并为实现另一种新型碳纳米结构金刚石纳米线的共同目标做出贡献。