Piezoelectric energy harvesting characteristics of GaN nanowires prepared by a magnetic field-assisted CVD process

Chan Su Han, Tae Hyeon Lee, Gwang Mook Kim, Da Yun Lee, Yong Soo Cho

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4 Citations (Scopus)


Various piezoelectric nanostructures have been extensively studied for competitive energy harvesting applications. Here, GaN nanowires grown by a nonconventional magnetic field-assisted chemical vapor deposition process were investigated to characterize the piezoelectric energy harvesting characteristics. As a controlling parameter, only the growth time was changed from 15 min to 90 min to obtain different crystallinity and morphology of the nanowires. Energy harvesting characteristics were found to depend largely on the growth time. A longer growth time tended to lead to an increased output current, which is reasonable when considering the enhanced charge potentials and crystallinity. A maximum output current of ∼14.1 nA was obtained for the 90 min-processed nanowires.

Original languageEnglish
Pages (from-to)167-170
Number of pages4
JournalJournal of the Korean Ceramic Society
Issue number2
Publication statusPublished - 2016 Mar


All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

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