Acoustic wave-driven oxidized liquid metal-based energy harvesterJinpyo Jeon, Sang Kug Chung, Jeong-Bong Lee, Seok Joo Doo and Daeyoung KimEur. Phys. J. Appl. Phys., 81 2 (2018) 20902DOI: https://doi.org/10.1051/epjap/2018180011