Distributed mobile ultraviolet light sources driven by ambient mechanical stimuli

Zhaozheng Wang; Yunxu Shi; Fan Liu; Hao Wang; Xu Liu; Runtong Sun; Yijia Lu; Linhong Ji; Zhong Lin Wang; Jia Cheng

doi:10.1016/j.nanoen.2020.104910

Distributed mobile ultraviolet light sources driven by ambient mechanical stimuli

Nano Energy. 2020 Aug:74:104910. doi: 10.1016/j.nanoen.2020.104910. Epub 2020 May 4.

Authors

Zhaozheng Wang^{1

2}, Yunxu Shi², Fan Liu¹, Hao Wang¹, Xu Liu¹, Runtong Sun¹, Yijia Lu¹, Linhong Ji¹, Zhong Lin Wang^{3

4}, Jia Cheng¹

Affiliations

¹ State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing, China.
² School of Electromechanical and Automotive Engineering, YanTai University, Shandong, China.
³ Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, China.
⁴ School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA.

Abstract

Due to the natural characteristics of high voltage output, Triboelectric Nanogenerators (TENGs) have huge advantages in many fields. Here, we have proposed a concept of Mobile ultraviolet light sources (Mobile-UV) driven by TENG, without any additional circuits. For this system, analysis of electric characteristics, optical emission spectra, and COMSOL simulation were carried out to promote the performance. Subsequently, we have developed exploratory applications in the fields of bio-sterilization, chemical detection, and UV-curing, which proved the versatility and effectiveness. This work offers a promising, portable, effective, and safe supplement to traditional ultraviolet light sources, and will enrich the diversity of the ultraviolet application based on the reach of existing technologies.

Keywords: High voltage application; Triboelectric nanogenerators; Ultraviolet light.