Piezo- and Ferro- Electricity of One Dimensional Nanomaterials

摘要“压电和铁电在1-D纳米材料”（CMS 0324643）：该项目的目的是实现在低维的压电和铁电效应的基本理解，为开发新的纳米器件的纳米机电系统的关键。 这个尚未被广泛研究的主题与纳米科学和技术的进一步发展密切相关。 作出了以下努力：（1）开发纳米级压电性和铁电性研究的实验能力;（2）证明和验证BN和BaTiO 3纳米线的压电性;（3）研究压电和/或铁电效应对尺寸、形状和外部负载的依赖性;（4）原型化和表征集成BN和/或BaTiO 3纳米线的纳米级传感器和致动器。 这项研究是在多探针自由空间纳米操纵和表征能力的帮助下完成的，这些能力与电子显微镜内的实时可视化和纳米级材料处理相结合。 这项研究不仅将扩展我们在低维压电和铁电性方面的科学知识，而且将在纳米技术的纳米表征、驱动和传感方面取得工程突破。 它还包括一项综合计划，以整合和教育学生，并促进公众参与新的科学研究。

Abstract for "Piezo- and Ferro- electricity in 1-D nanomaterials" (CMS 0324643):The project is aimed to achieve fundamental understanding of the piezoelectric and ferroelectric effects at low dimension for the purpose of developing novel nanoscale devices critical for nanoscale electromechanical systems. The subject, which has not been extensively studied yet, is critically related to the further advance of nanoscale science and technology. Efforts are made: (1) to develop experimental capabilities for the study of piezoelectricity and ferroelectricity at the nanoscale; (2) to demonstrate and verify the piezoelectricity of BN and BaTiO3 nanowires; (3) to study the dependence of the piezoelectric and/or ferroelectric effects on size, shape and external load; and (4) to prototype and characterize nanoscale sensors and actuators integrating BN and/or BaTiO3 nanowires. The study is accomplished with the aid of multi-probe free-space nanomanipulation and characterization capabilities integrated with real-time visualization and nanoscale materials processing inside electron microscope. The research will not only expand our scientific knowledge on low dimensional piezoelectricity and ferroelectricity, but also achieve engineering breakthroughs on nanoscale characterization, actuation and sensing for nanotechnology. It includes also a comprehensive plan for integrating and educating students, and promoting the public engagement in new scientific research.