Electric-field-driven interfacial trapping of drifting triboelectric charges via contact electrification

Jin Kyeom Kim, Gi Hyeon Han, Sun Woo Kim, Hee Jun Kim, Rahul Purbia, Dong Min Lee, Jong Kyu Kim, Hee Jae Hwang, Hyun Cheol Song, Dukhyun Choi, Sang Woo Kim, Zhong Lin Wang, Jeong Min Baik

Research output: Contribution to journalArticlepeer-review


In this paper, we report a new facile strategy to maximize the charge density for a high-output triboelectric nanogenerator (TENG). It was realized by designing a new cationic material structure consisting of SiO2 and MoS2 coated on a Ni-mesh in sequence. Compared with Ni-mesh-based TENGs, this new TENG generated about 13 times higher output power and a superior charge density of over 1000 μC m−2 with a slow charge decay rate. Its extremely high charge density could be explained by a low work function of MoS2, an upward bending of the energy band at the interface between MoS2 and SiO2, and a high charge capacity of SiO2. Based on the gear-cam mode, the average output power of the TENG was measured to be about 14.75

Original languageEnglish
Pages (from-to)598-609
Number of pages12
JournalEnergy and Environmental Science
Issue number2
Publication statusPublished - 2023 Jan 16

Bibliographical note

Funding Information:
This work was supported a project (Project Number: SRFC-TA1403-51) funded by Samsung Research Funding Center of Samsung Electronics, Republic of Korea.

Publisher Copyright:
© 2023 The Royal Society of Chemistry.

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Pollution


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