A Triboelectric Nanogenerator Based on Sodium Chloride Powder for Self-Powered Humidity Sensor

Zhuyu Ding; Ming Zou; Peng Yao; Zhiyuan Zhu; Li Fan

doi:10.3390/nano11102657

A Triboelectric Nanogenerator Based on Sodium Chloride Powder for Self-Powered Humidity Sensor

Nanomaterials (Basel). 2021 Oct 9;11(10):2657. doi: 10.3390/nano11102657.

Authors

Zhuyu Ding¹, Ming Zou², Peng Yao², Zhiyuan Zhu^{2

3}, Li Fan²

Affiliations

¹ College of Engineering and Technology, Southwest University, Chongqing 400715, China.
² School of Electronic and Information Engineering, Southwest University, Chongqing 400715, China.
³ Ocean College, Faculty of Engineering, Zhejiang University, Hangzhou 316021, China.

Abstract

Recently, the research of distributed sensor networks based on triboelectric technology has attracted extensive attention. Here, we reported a new triboelectric nanogenerator based on sodium chloride powder (S-TENG) to obtain mechanical energy. The polytetrafluoroethylene (PTFE) film and sodium chloride powder layer serve as the triboelectric pair. After testing and calculation, the internal resistance of S-TENG is 30 MΩ, and the output power of S-TENG (size: 6 cm × 6 cm) can arrive at the maximum value (about 403.3 µW). Furthermore, the S-TENG can achieve the open circuit voltage (V_oc) of 198 V and short-circuit current (I_sc) of 6.66 µA, respectively. Moreover, owing to the moisture absorption of sodium chloride powder, the S-TENG device also has the function of the humidity sensor. This work proposed a functional TENG device, and it can promote the advancement of self-powered sensors based on the TENG devices.

Keywords: low-cost; self-powered sensor; sodium chloride powder; triboelectric nanogenerator (TENG).