Remarkably enhanced triboelectric nanogenerator based on flexible and transparent monolayer titania nanocomposite. (August 2018)

• Record Type: Journal Article
• Authors: Wen, Rongmei; Guo, Junmeng; Yu, Aifang; Zhang, Ke; Kou, Jinzong; Zhu, Yaxing; Zhang, Yang; Li, Bao-Wen; Zhai, Junyi
• Is Part Of: Nano energy. Volume 50(2018)
• Page Start: 140
• Page End: 147
• Publication Date: 2018-08
• Subjects: Triboelectric nanogenerator -- Dielectricity -- Monolayer titania -- Nanocomposite -- PVDF -- Electron-capture; 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.2018.05.037
• Languages: English
• ISSNs: 2211-2855

Abstract

Abstract: Triboelectric nanogenerator (TENG) is an effective way to convert mechanical energy into electricity, which has been approved as new types of energy harvesting and strain sensor technology. In this study, we design and fabricate a flexible and transparent TENG based on a nanocomposite film made of PVDF and titania monolayer (TOML). The PVDF/TOML composite TENG with 1.5 wt% TOML generates output signals of 52.8 V and 5.69 μA/cm 2 and a 50-fold enhancement in output power, compared to the pure PVDF-based TENG. It is found that the synergy between efficient electron capture and high dielectric constant of TOML leads to enhancing the performance of the TENG. Besides, the nanocomposite maintains high performance of the stability and durability due to the excellent compatibility between the inorganic TOML and organic PVDF. Graphical abstract: High output performance of TENG is obtained by adding a small loading of two-dimensional monolayer titania (TOML). It is found that the synergy between efficient electron capture and high dielectric constant of TOML leads to the enhancing the performance of the TENG. This work demonstrates TOMLs are excellent triboelectric materials for efficient energy harvesting TENG, which proves a novel strategy for improving the performance of the TENG by doping multifunctional fillers. fx1 Highlights: TENG based on monolayer titania nanocomposite is presented. The output performances of TENG in varied TOMLs ratios in PVDF have been studied. TOML plays dual roles of electron-capture layer and high dielectric constant material.