Improved energy harvesting capability of poly(vinylidene fluoride) films modified by reduced graphene oxide. (September 2014)

• Record Type: Journal Article
• Authors: Wu, Liangke; Alamusi, ; Xue, Junmin; Itoi, Takomi; Hu, Ning; Li, Yuan; Yan, Cheng; Qiu, Jianhui; Ning, Huiming; Yuan, Weifeng; Gu, Bin
• Is Part Of: Journal of intelligent material systems and structures. Volume 25:Number 14(2014:Sep.)
• Page Start: 1813
• Page End: 1824
• Publication Date: 2014-09
• Subjects: Energy harvesting capability -- piezoelectric nanocomposite -- reduced graphene oxide -- self-powered devices; Smart materials -- Periodicals; Intelligent control systems -- Periodicals; Artificial intelligence -- Periodicals; Matériaux intelligents -- Périodiques; Commande intelligente -- Périodiques; Intelligence artificielle -- Périodiques; 620.11
• DOI: 10.1177/1045389X14529609
• Languages: English
• ISSNs: 1045-389X

Abstract

Piezoelectric energy harvesters can be used to convert ambient energy into electrical energy and power small autonomous devices. In recent years, massive effort has been made to improve the energy harvesting ability in piezoelectric materials. In this study, reduced graphene oxide was added into poly(vinylidene fluoride) to fabricate the piezoelectric nanocomposite films. Open-circuit voltage and electrical power harvesting experiments showed remarkable enhancement in the piezoelectricity of the fabricated poly(vinylidene fluoride)/reduced graphene oxide nanocomposite, especially at an optimal reduced graphene oxide content of 0.05 wt%. Compared to pristine poly(vinylidene fluoride) films, the open-circuit voltage, the density of harvested power of alternating current, and direct current of the poly(vinylidene fluoride)/reduced graphene oxide nanocomposite films increased by 105%, 153%, and 233%, respectively, indicating a great potential for a broad range of applications.