Piezoresistive Effects in Single Molecule Devices

单分子器件中的压阻效应

• 批准号: 1231915
• 负责人: Joshua Hihath
• 金额: $ 36万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-15 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1231915&HistoricalAwards=false
• 关键词: Piezoresistive; Effects; Single; Molecule; Devices

The objective of this program is to understand the effects of mechanical stresses and perturbations on the electronic properties of single molecule systems. By exploring the impacts of contact geometry, molecule-electrode coupling strength, tensile and compressive forces, and electron-phonon interactions on the charge transport properties of these devices this project will provide new information about how the detailed, atomic-level configuration of molecular systems affects the electronic properties.The intellectual merit of this proposal is that developing a comprehensive understanding of the intricate interplay between the mechanical and electrical properties of single-molecule systems will provide important information about controlling charge transport in these systems and enable transformative progress in the development of functional molecular-electronic systems. This includes the exploration of new functional paradigms for electromechanical computational schemes and transducers that can convert mechanical stimuli into electrical signals for use in sensor systems.The broader impacts are that knowledge about the interaction between mechanical structure and charge transport will affect a variety of fields beyond molecular-scale electronics. This includes biology and chemistry where these interactions are extremely important for understanding protein systems like photosynthetic reactions centers. This research will also impact the study of both bulk organic and nanoscale electronics since controlling charge transport mechanically may allow for novel sensors, devices, and applications. Furthermore, the interdisciplinary research and educational program in this program will be three tiered with efforts focused on exposing K-12 students to engineering disciplines, undergraduate research opportunities, and graduate training and education.

该程序的目的是了解机械应力和扰动对单分子系统电子特性的影响。通过探索接触几何，分子 - 电极耦合强度，拉伸和压缩力以及电子 - 光子相互作用对这些设备的电荷传输属性的影响，该项目将提供有关详细的，原子级别的分子属性的新信息。单分子系统的性质将提供有关控制这些系统中电荷传输的重要信息，并在功能分子电子系统的开发中实现变革性进步。这包括探索机电计算方案和传感器的新功能范式，这些范例可以将机械刺激转换为电信号，以用于传感器系统。更广泛的影响是，关于机械结构和电荷传输之间相互作用的知识将影响超出分子尺度电子的各种领域。这包括生物学和化学，其中这些相互作用对于理解光合作用反应中心等蛋白质系统极为重要。 这项研究还将影响大量有机和纳米级电子的研究，因为机械控制电荷运输可能允许新型传感器，设备和应用。此外，该计划中的跨学科研究和教育计划将以三级为重点，致力于将K-12学生暴露于工程学科，本科研究机会以及研究生培训和教育。