Facility Agriculture: Development of Green Power Facility【Department of Materials Science Engineering / Lai, Ying-Chih / Professor】
設施農業：綠能設施開發【材料科學與工程學系賴盈至教授/優聘教師】
論文篇名 英文：Solid-state intrinsically-superstretchable multifunctional nanogenerator fiber for biomechanical and ambient electromagnetic energy harvesting and self-powered sensing 
中文：可收集環境電磁能與身體動能的固態、可拉伸紡線
期刊名稱 NANO ENERGY
發表年份,卷數,起迄頁數 2022, 95, 107035.
作者 Ginnaram, Sreekanth; Chen, Yi-Ting; Lai, Ying-Chih(賴盈至)*
DOI 10.1016/j.nanoen.2022.107035
中文摘要 在這篇成果裡，我們首次利用全固態非金屬基的複合材料，配合材料表面極化與位移電流，以及電磁感應起電現象，實現可收集環境電磁波能量、身體動能、可伸縮的全固態奈米發電機紡線。主要成就有三：
1.我們首次證明利用非金屬基的複合材料，可以實現電磁感應起電現象，回收環境的電磁波，轉換成可用的電力，提供給穿戴電子使用，此成果能大幅拓展這項技術的材料選擇性。
2.第一次實現可同時收集兩種環境能源(環境電磁波與身體動能)的本質可拉伸的全固態發電紡線。
3.利用固態複合材料實現的可拉伸接觸起電發電紡線，可拉伸性達590%，高於目前利用固態材料所作的接觸起電發電紡線文獻 (ACS Nano, 2015, 9, 6394；Adv. Energy Mater. 2018, 1801114；Adv. Funct. Mater. 2020, 2006679)。
此研究利用全固態材料，實現兩種環境能量收集功能，與優異的機械性質；同時證明非金屬實現收集環境電磁能的可行性，對於穿戴能源有指標性的意義，並為柔性電子的能源發展，開啟重要的大門。
英文摘要 Developing energy devices that are soft but tough and can extract multiple forms of surrounding energy is a crucial challenge for sustainable use of wearable electronics. Here, we report a solid-state naturally superstretchable (~590% stretchability) multifunctional nanogenerator fiber that can scavenge both biomechanical energy (e.g., from body motion) and dissipated electromagnetic energy (e.g., from nearby electrical appliances). Not only collect two types of waste energy, but also it can act as self-powered sensor. It comprises a conducting composite-coated extensible fiber clad in a triboelectric elastomer and extracts energy through triboelectrification (424 V m−1, 9.53 µA m−1, and ~85.2 µW m−1) and electromagnetic induced electrification ( ± 8.8 V m−1, ± 1.6 μA m−1, and ~2.81 μW m−1 at 60 Hz). The behavior to harvest nearby electromagnetic energy is successfully demonstrated in a carbon nanotubes (CNTs)-based composite. The collected energy can power electronic gadgets. Moreover, it can transmit biomechanical information, including physiological/respiratory signals, vibration of vocal cords, gestures, and touching, via self-generated electricity. The fibers are further used as self-powered human-machine interfaces in system-level smart clothing. The fiber that unites mechanical freedom and the ability of capturing multiple forms of energy and self-powered sensing can meet vast application needs for wearable/stretchable/personal energy and sensing technologies.
發表成果與本中心研究主題相關性 實現可收集電磁能與身體動能的摩擦納米發電紡線，可用於自驅動的農業感測應用與自供電的農業物聯網。