Collaborative Research: Understanding the Multiscale Behavior of Triboelectric Devices

合作研究：了解摩擦电器件的多尺度行为

• 批准号: 1662587
• 负责人: Gregory Batt
• 金额: $ 20.48万
• 依托单位: Clemson University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-08-15 至 2022-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1662587&HistoricalAwards=false
• 关键词: Collaborative; Research; Understanding; Multiscale; Behavior

Triboelectricity is due to contact electrification, a phenomenon that occurs when nearly any combination of metal (conductor), semiconductor, or dielectric (insulator) materials come into contact. Previously, devices that utilize this principle were developed without understanding the fundamental mechanisms behind triboelectricity. The objective of this project is to fill in the knowledge gap about the true nature of triboelectricity through a combination of analytical models and experimental analysis. Potential transformative uses of this technology are to provide power sources to sensors and devices used in smart or intelligent packaging. Pharmaceutical packaging is predicted to be the fastest growing intelligent packaging market, with opportunities driven by the health care needs of the aging US population. Additionally, it is estimated that US businesses lose up to $250 billion of profit due to the counterfeit drug trade each year. "Smart" packaging solutions include printed electronics, smart labels capable of illumination, temperature and humidity indicators, and radio frequency identification tags used for tracking and quick package identification. In addition, there is an array of sensors that can record forces in the distribution environment. These devices share a need for power. The project also includes educational outreach activities in the form of interactive games based on triboelectric devices to engage K-12 students and to target under-represented minorities into pursuing a graduate degree in a science and technology and engineering and mathematics field.The specific objectives of this project are to: develop predictive models of the molecular scale mechanism of charge transfer due to the contact electrification process, model the interplay of the macro and microscale properties of the device that effect its performance, study the effect of environmental conditions on the performance of these devices, and formulate multidimensional analytical models on the macroscopic behavior of flexible triboelectric generators that incorporate environmental effects, and microscale effects such as surface topography, local charge distribution, and real area of contact. The outcomes of this research will culminate in a test bed concept of a triboelectric foam composite to be utilized in smart packaging for concurrent energy scavenging and vibration suppression. The methodology in this project establishes a new paradigm on the design of triboelectric devices and marks the first systematic attempt to understand the behavior of triboelectric generators / sensors at multiple spatial scales. The insights gained from this research will culminate in system level understanding of these devices that will lead to a triboelectric genome of dielectric materials, surface treatments and textures, and elastic coupling elements to design a triboelectric device for a specific objective, whether it be sensing, energy scavenging or as an input to electronic devices. The project will also result in quantification of environmental condition on triboelectric devices, and phenomenologically modeling their effect.

Triboelectricity归因于接触电气，这是一种几乎任何金属（导体），半导体或介电（绝缘体）材料的现象。以前，使用该原理的设备是开发的，而没有理解摩擦电性背后的基本机制。该项目的目的是通过分析模型和实验分析的结合来填补关于摩擦电性的真实性质的知识差距。该技术的潜在变革用途是为智能或智能包装中使用的传感器和设备提供电源。预计制药包装将是增长最快的智能包装市场，其机会是美国老年人口的医疗保健需求所驱动的。此外，据估计，由于伪造毒品交易，美国企业损失了多达2500亿美元的利润。 “智能”包装解决方案包括印刷电子设备，能够照明的智能标签，温度和湿度指示器以及用于跟踪和快速包装标识的射频标识标签。此外，还有一系列传感器可以在分配环境中记录力。 这些设备共享需要权力的需求。该项目还包括基于互动游戏形式的教育宣传活动，基于互动游戏的形式，以吸引K-12学生，并针对代表性不足的少数群体来追求科学，技术，工程和数学领域的研究生学位。它的性能，研究环境条件对这些设备性能的影响，并制定多维分析模型对包含环境效应的柔性摩擦式发电机的宏观行为，以及显微镜效应，例如表面形貌，局部电荷分布和实际接触区域。这项研究的结果将在测试床的概念中达到最终形式的摩擦包装材料复合材料的概念，以同时进行能量清除和振动抑制。该项目中的方法建立了一个关于摩洛电设备设计的新范式，并标志着首次在多个空间尺度上了解摩洛电性发生器 /传感器的行为的系统尝试。从这项研究中获得的见解将在系统级别的理解中最终理解这些设备，这将导致介电材料，表面处理和纹理的摩擦电基因组，以及弹性耦合元素以设计特定目标的摩洛电设备，无论它是感应，能量清除还是对电子设备的输入。该项目还将导致量化环境状况在摩擦式设备上的量化，并在现象学上对其作用进行建模。