Ultrahigh Power Output from Triboelectric Nanogenerator Based on Serrated Electrode via Spark Discharge
- Authors
- Kim, Jihye; Cho, Hanchul; Han, Maeum; Jung, Young; Kwak, Sung Soo; Yoon, Hong-Joon; Park, Byunggeon; Kim, Hyeok; Kim, Hyoungjae; Park, Jinhyoung; Kim, Sang-Woo
- Issue Date
- Nov-2020
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- self-powered high voltage applications; serrated electrodes; spark discharge; triboelectric nanogenerators; ultrahigh power output
- Citation
- ADVANCED ENERGY MATERIALS, v.10, no.44
- Journal Title
- ADVANCED ENERGY MATERIALS
- Volume
- 10
- Number
- 44
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/87372
- DOI
- 10.1002/aenm.202002312
- ISSN
- 1614-6832
- Abstract
- An ultrahigh power output from a triboelectric nanogenerator (TENG) with a serrated electrode in a low-frequency contact-separation mode which is able to directly drive high voltage-operating devices without the need for an external power supply is demonstrated. When a serrated electrode-based TENG (SE-TENG) is driven, the microstructurally serrated electrode creates a spark discharge in the gap between the serrated electrode and a wire, resulting in tremendously boosted triboelectric power output. Based on the spark discharge phenomenon, a boost adaptor is designed to secondarily boost the triboelectric power output performance, and consequently an ultrahigh triboelectric output voltage of 5 kV and current density of 2 A m(-2)are achieved. The boost adaptor concept can be applied to any typical TENG for achieving higher power-generating performance. Finally, two high voltage applications, a Crookes tube and plasma generation, are demonstrated using the SE-TENG and boost adaptor without any external power supply equipment. The ultrahigh power-generating SE-TENG based on the spark discharge phenomenon occurring in the unique electrode structure has considerable potential to operate high voltage applications directly in harsh environments where electricity cannot be supplied.
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