Self-powered room temperature NO2 detection driven by triboelectric nanogenerator under UV illumination. (May 2018)

• Record Type: Journal Article
• Authors: Su, Yuanjie; Xie, Guangzhong; Tai, Huiling; Li, Shuangding; Yang, Boxi; Wang, Si; Zhang, Qiuping; Du, Hongfei; Zhang, Hulin; Du, Xiaosong; Jiang, Yadong
• Is Part Of: Nano energy. Volume 47(2018)
• Page Start: 316
• Page End: 324
• Publication Date: 2018-05
• Subjects: NO2 sensor -- Self-powered -- Triboelectric nanogenerator -- UV-activated -- Hybrid film; 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.2018.02.031
• Languages: English
• ISSNs: 2211-2855

Abstract

Abstract: The triboelectric nanogenerator (TENG) driven self-powered gas sensor has been developed for room temperature nitrogen dioxide (NO2 ) detection under UV illumination (365 nm). Powered by TENG, the concentration of NO2 can be spontaneously detected via chemoresistive gas sensor based on Zinc Oxide-Reduced graphene oxide (ZnO-RGO) hybrid films, where the voltage drop across the interdigital electrodes (IDEs) has a proportional relationship with NO2 concentration. The self-powered triboelectric gas sensor (TGS) composed by ZnO-RGO composite films exhibit superior response (~ 16.8) and sensitivity as well as selectivity than that for pure ZnO film. With respect to selectivity, the response of ZnO-RGO composite film based TGS to NO2 was at least 49-fold higher than those for other gases. Furthermore, through a signal processing circuit, a self-powered NO2 gas alert system was developed for real-time monitoring the ambient NO2 concentration. This work not only promotes the applicability of TENGs as self-powered sensors but also pushes forwards the active sensing network node for environmental monitoring by harvesting ambient energy. Graphical abstract: fx1 Highlights: TENG was employed to power the UV-enhanced gas detection for the first time. A self-powered NO2 gas alert system was developed via a signal processing circuit. The prepared sensor holds an exceptional response of 16.8–100 pm NO2 . The response to NO2 was at least 49-fold higher than those for other gases.