Hydrophobic sponge structure-based triboelectric nanogenerator

Keun Young Lee, Jinsung Chun, Ju Hyuck Lee, Kyeong Nam Kim, Na Ri Kang, Ju Young Kim, Myung Hwa Kim, Kyung Sik Shin, Manoj Kumar Gupta, Jeong Min Baik, Sang Woo Kim

Research output: Contribution to journalArticlepeer-review

435 Scopus citations


Hydrophobic sponge structure-based triboelectric nanogenerators using an inverse opal structured film for sustainable energy harvesting over a wide range of humid atmosphere have been successfully demonstrated. The output voltage and current density reach a record value of 130 V and 0.10 mA cm-2, respectively, giving over 10-fold power enhancement, compared with the flat film-based triboelectric nanogenerator.

Original languageEnglish
Pages (from-to)5037-5042
Number of pages6
JournalAdvanced Materials
Issue number29
StatePublished - 6 Aug 2014


  • energy harvesting
  • humidity
  • hydrophobic sponge
  • nanogenerator
  • triboelectricity


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