Energy harvesting at the nanoscale: From principles to functions

纳米级能量收集：从原理到功能

• 批准号: RGPIN-2016-05836
• 负责人: Segal, Dvira
• 金额: $ 3.35万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=632386
• 关键词: Energy; harvesting; nanoscale; principles; functions

The objectives of our program is to build models, develop theoretical methodologies and computational implementations, suggest new functions, and optimize performance of energy conversion systems operating at the nanoscale. Transducers of interest are photovoltaic cells, thermoelectric junctions, and heat engines such as heat pumps and refrigerators, made from physical-chemical components such as single molecules, quantum dots, thin films, organic hetero-junctions. Using simple models, our plan is to focus on the dynamics of charge and energy carriers in these systems, and interrogate the role of quantum effects on transfer rates, loss processes, fluctuations, currents, and power output and efficiency. A central aspect of systems of interest is that the dynamics of participating particles, thus the resulting operation, is strongly affected by the interaction between electronic and nonelectronic degrees of freedom, the latter comprising nuclear motion of molecules, radiation fields, and other collective excitations. Another nontrivial aspect of our work is that it inherently departs from the setting of traditional thermodynamics since quantum effects and strong interactions between the operating system and its thermal environment may govern the dynamics.

我们计划的目标是建立模型，开发理论方法和计算实现，提出新的功能，并优化在纳米级运行的能量转换系统的性能。感兴趣的传感器是光伏电池、热电结和热力发动机，例如热泵和冰箱，由物理化学成分例如单分子、量子点、薄膜、有机异质结制成。使用简单的模型，我们的计划是专注于这些系统中的电荷和能量载体的动态，并询问量子效应对传输速率，损耗过程，波动，电流，功率输出和效率的作用。感兴趣的系统的一个中心方面是参与粒子的动力学，从而产生的操作，强烈地受到电子和非电子自由度之间的相互作用的影响，后者包括分子的核运动，辐射场和其他集体激发。我们工作的另一个重要方面是，它本质上偏离了传统热力学的设置，因为量子效应和操作系统与其热环境之间的强相互作用可能会控制动力学。