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

摘要建议1039543拟议研究的目标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能量收集混合系统。由覆盖有聚偏氟乙烯(PVDF)和三氟乙烯(TrFE)的压电性聚偏氟乙烯(PVDF)的石墨烯层组成的单个微器件将产生交变电势，因为气流在自由区诱导自振荡颤振运动。电力由P(VDF-TrFE)底层的交替拉伸/压缩产生，并通过支撑聚合物层的导电石墨烯带提取。在这项早期概念探索研究补助金(AGER)中，我们将进行基于石墨烯的能量收集系统的可行性研究，目标是实现概念验证。智力优势：如果成功论证，拟议的研究将导致基于气动、压电和纳米电力系统的微型风带新能源的开发。作为项目的一部分，当在层流微流通道中进行测量时，将获得对石墨烯动力学和电学性质的基本原理的重要洞察。此外，研究新的系统，如建议的压电式颤振发生器，对于减少浪费和往往危险的电池的使用，同时允许增加当今移动设备所需的功耗和功能至关重要。最后，该研究将考察颤振与压电现象的耦合，并在研究微流体中的混合独立式结构以控制流动湍流的同时，研究石墨烯颤振现象的本质。广泛的影响：本项目将设计和开发一类新型的基于石墨烯的颤振能量收集系统，将在许多重要方面造福我们的社会。基于字素的颤振系统将提供一个知识库，并有利于实际应用，如微型电池和传感器的能源，而不需要严格的维护。在教育工作方面，从拟议研究中获得的新知识将被纳入PI的纳米技术本科教育课程ENG 0240。对于学生培训，研究生和本科生将在这个项目上合作。

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.