Enhancing Tribo-polarities of Polyurethane and Ecoflex Films Using Chemically Modified 2D- Graphene-based Pillars to Enhance Efficiency of Triboelectric Nanogenerators (TENGs)
발표자
()
초록
내용
Uninterrupted supply of electrical energy to the Internet of Things (IoT) is challenging using existing power sources. By addressing these issues self-powered triboelectric nanogenerators (TENGs) have attracted enormous interest in the last decades. Owing to low-power density and high internal impedance the TENGs are hindering practical for applications. In this study, we introduce a novel amino-functionalized reduced graphene oxide (AFGO) and graphite-fluorinated polymer (FG) pillars into Polyurethane (PU) and Ecoflex (EC) films to enhance the electromechanical conversion efficiency. The positive and negative surface potential of PU and EC are increased more than two times (201 to 480 V) and (-848 to -1813 V), respectively with pillars. Among the devices, PUAFGO2/EC15FG-TENG shows a maximum triboelectric performance of 434 V, 11.2 µA, 1.18 Wm-2, and an energy conversion efficiency of 95 %. PUAFGO2/EC15FG-TENG is successfully demonstrated for real-time energy harvesting applications.