P2EM.4 - Novel Flexible Self-Powered Humidity Detection enabled by Triboelectric Effect
- Event
- 17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
Vienna, Austria - Chapter
- P-2 - Emerging Sensor Technologies
- Author(s)
- S. Wang, H. Tai, G. Xie, Y. Su, Y. Jiang - School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu (China)
- Pages
- 753 - 754
- DOI
- 10.5162/IMCS2018/P2EM.4
- ISBN
- 978-3-9816876-9-9
- Price
- free
Abstract
In this work, a fundamental new approach for flexible self-powered humidity detection was proposed. By integrating humidity-sensitive materials into the nanogenerator (TENG), the degree of ambient moisture can be actively detected at room temperature, where the output voltage of the TENG has a reversely proportional relationship with relative humidity. The morphology and chemical properties of the fabricated sensor based on Ce-ZnO heterostructure nanoparticles were characterized by SEM, FTIR and UV-visible spectroscopy respectively. In addition, the prepared flexible self-powered triboelectric humidity sensor (FTHS) holds high humidity response of ~70%, fast response/recovery time of 23 s and 24 s (@90% respectively) and stable repeatability. Finally, the underlying working principle of the proposed sensor was discussed in detail. This research not only provides a simple, cost-effective, and robust technique in self-powered humidity sensing but also successfully realizes the integration of humidity-sensitive materials in the TENG to achieve integrated compatibility in humidity detection.