Aerodynamic and aeroelastic flutters driven triboelectric nanogenerators for harvesting broadband airflow energy. (March 2017)

• Record Type: Journal Article
• Authors: Phan, Hai; Shin, Dong-Myeong; Heon Jeon, Sang; Young Kang, Tae; Han, Pyunghwa; Han Kim, Gyu; Kook Kim, Hyung; Kim, Kyujung; Hwang, Yoon-Hwae; Won Hong, Suck
• Is Part Of: Nano energy. Volume 33(2017:Mar.)
• Page Start: 476
• Page End: 484
• Publication Date: 2017-03
• Subjects: Triboelectric nanogenerator -- Energy harvesting -- Airflow -- Fluttering membrane; Nanoscience -- Periodicals; Nanotechnology -- Periodicals; Nanostructured materials -- Periodicals; Power resources -- Technological innovations -- Periodicals; Nanoscience; Nanostructured materials; Nanotechnology; Power resources -- Technological innovations; Periodicals; 621.042
• DOI: 10.1016/j.nanoen.2017.02.005
• Languages: English
• ISSNs: 2211-2855

Abstract

Abstract: Aerodynamic and aeroelastic flutter-driven triboelectric nanogenerators are successfully used to harvest broadband airflow energy. The unit component of the flutter membrane consists of thin, free-standing Al foil electrodes covered on both sides with electrospun poly(vinyl chloride) nanofiber-structured mats, which provide advantageous tribo-surfaces specifically to increase the friction area. The airflow-induced triboelectric power generation from a single unit of the flutter-membrane-based triboelectric nanogenerator (FM-TENG) was up to 0.33 μW under a mild airflow condition. The use of a multi-layered triboelectric nanogenerator, fabricated by simply stacking the single units, can improve the output performance of the device. In a separate configuration, we designed a novel FM-TENG structure by mounting an aeroelastic flutter-belt adapted for use with a flutter-membrane energy-harvester. A rubber belt, which was sandwiched between the flutter membranes, created a rapid periodic vibrational mode via aeroelastic fluttering, synergistically harvesting triboelectric energy with the application of a constant air stream through the closed channel of the FM-TENG. Thus, our flutter-membrane-based approach creates a sustainable and cost-efficient energy harvesting system for collecting broadband airflow energy. Furthermore, the aerodynamic and aeroelastic FM-TENG have great potential to be used in numerous areas of self-powered electronic systems and in-situ wireless sensor applications for automobiles or aircraft. Graphical abstract: The harvest of broadband airflow energy is accomplished using aerodynamic and aeroelastic flutter-driven triboelectric nanogenerators. Multi-layered triboelectric nanogenerators are made by simply stacking single units and can improve the output performance of the device. Adapting an aeroelastic flutter to synergistically combine aerodynamic and aeroelastic movement enables dramatic improvements in the electrical output of the triboelectric nanogenerator. Highlights: Aerodynamic and aeroelastic flutter-driven triboelectric nanogenerators. Multi-layered triboelectric nanogenerators. Adapting an aeroelastic flutter to synergistically combine aerodynamic and aeroelastic movement.