Translator Disclaimer
Paper
8 February 2019 Flexible self-powered ammonia sensor based on Ce-ZnO composite film
Author Affiliations +
Proceedings Volume 10843, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing and Imaging; 108431I (2019) https://doi.org/10.1117/12.2506914
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China
Abstract
In this work, a flexible self-powered ammonia (NH3) sensing system based on a vertical contact-separate mode triboelectric nanogenerator (TENG) has been proposed for room temperature detection of NH3 concentrations. By integrating NH3-sensing materials into the nanogenerator (TENG), the degree of ambient NH3 concentration can be actively detected at room temperature. The output voltage of the self-powered system has a proportional relationship with NH3 concentrations. Furthermore, the Ce-ZnO heterostructure nanoparticles thin film was prepared by hydrothermal synthesis method under 150°C and then form a sensitive film through spray method, which demonstrates a good sensing-response when exposed to NH3 molecules. For comparison, the ZnO nanoparticles was prepared through the same method. Moreover, the morphology and chemical properties of the fabricated sensor based on ZnO nanoparticles and Ce-ZnO heterostructure nanoparticles film were characterized by SEM, UV-visible spectroscopy and XRD, respectively. In addition, the prepared self-powered triboelectric NH3 sensor based on Ce-ZnO heterostructure nanoparticles composite thin film holds a gas-sensing response of 44.68% at 100 ppm NH3. The doping of Ce in the hydrothermal synthesis process of ZnO nanoparticles effectively enhanced the active sites of ZnO, leading to an increase of the NH3-sensing response compared to pure ZnO nanoparticles film, which is 4.4 times higher than that of pure ZnO. This research not only provides a simple method in self-powered NH3 sensing but also successfully realizes the integration of NH3-sensitive materials in the TENG to achieve integrated compatibility in NH3 detection.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Si Wang, Huiling Tai, Guangzhong Xie, Yuanjie Su, Xiaosong Du, and Yadong Jiang "Flexible self-powered ammonia sensor based on Ce-ZnO composite film", Proc. SPIE 10843, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing and Imaging, 108431I (8 February 2019); https://doi.org/10.1117/12.2506914
PROCEEDINGS
6 PAGES


SHARE
Advertisement
Advertisement
Back to Top