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

37 Scopus citations

Abstract

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
Volume16
Issue number2
DOIs
StatePublished - 16 Jan 2023

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