EAGER: Hybrid Graphene-PVDF Piezo-Flutter Device for Scalable Energy Harvesting System

本研究的目的是开发和演示一种基于独立式石墨烯的气动弹性颤振和压电混合能量收集系统。单个微器件由覆盖有压电聚偏氟乙烯（PVDF）三氟乙烯（TrFE）的石墨烯层组成，当气流在独立区域引起自振荡颤振运动时，将产生交变电势。电力是由P （VDF-TrFE）底层的交变张力/压缩产生的，并通过支撑聚合物层的导电石墨烯带提取。在这个探索性研究的早期概念拨款（EAGER）中，我们将执行基于石墨烯的能量收集系统的可行性，目标是实现概念验证。智力优势：如果研究成功，将导致基于空气动力、压电和纳米电系统相结合的微型风带新能源的开发。作为该项目的一部分，在层流微流体通道中测量时，将获得对石墨烯动力学和电学特性基本原理的关键见解。此外，研究新型系统，如所提出的压电颤振发生器，对于减少浪费和经常危险的电池的使用至关重要，同时允许在当今的移动设备中增加功耗和功能。最后，本研究将研究颤振与压电现象的耦合，并研究石墨烯颤振现象的性质，同时研究微流体中混合独立式结构对流动湍流的控制。更广泛的影响：该项目将设计和开发一种新型的基于石墨烯的颤振能量收集系统，这将在许多重要方面使我们的社会受益。基于石墨烯的颤振系统将提供一个知识库，并有利于实际应用，如微电池和传感器的能源资源，而不需要严格的维护。在教育方面，从拟议的研究中获得的新知识将被纳入PI的纳米技术本科教育（NUE）课程eng0240。对于学生培训，一名研究生和一名本科生将在这个项目上一起工作。

Abstract Proposal 1039543 The objective of the proposed research is to develop and demonstrate a hybrid aeroelastic flutter and piezoelectric energy harvesting system based on freestanding graphene. Individual microdevices consisting of a graphene layer covered with the piezoelectric polyvinylidene fluoride (PVDF) trifluoroethylene (TrFE) will generate an alternating electric potential as air-flow induces a self-oscillitory flutter motion in free standing regions. Power is generated from the alternating tension/compression of the bottom layer of the P (VDF-TrFE), and extracted via the conducting graphene-band supporting the polymer layer. In this Early-concept Grants for Exploratory Research (EAGER), we will perform the feasibility of graphene-based energy harvesting systems with the goal of achieving a proof-of-concept.Intellectual Merit: The proposed research will lead to the development of a new energy resource of microscale wind-belt based on combined aerodyanamic, piezoelectric, and nanoelectric systems if successfully demonstrated. As part of the project, critical insight will be gained into fundamentals of graphene dynamics and electrical properties when measured in a laminar-flow microfluidic channel. Furthermore, investigating novel systems such as the proposed piezo-flutter generator is critical to decreasing the use of wasteful and often hazardous batteries, while simultaneously allowing increases in power consumption and functionality desired in today's mobile devices. Finally, the proposed research will examine the coupling of flutter and piezoelectric phenomenon, and study the nature of the graphene flutter phenomenon while studying hybrid freestanding structures in microfluidics to control flow turbulence.Broader Impacts: This project will design and develop a new class of graphene-based flutter energy harvesting system which will benefit our society in many important ways. The grapheme based flutter system will provide a knowledge base, and benefit practical applications such as a micro-battery and an energy resource for sensors without the requirement of strict maintenance. For education efforts, the new knowledge gained from the proposed research will be incorporated into the PI's nanotechnology undergraduate education (NUE) course, ENG 0240. For student training, a graduate student and undergraduate students will work together on this project.