title: Enhanced Output Power of PZT Nanogenerator by Controlling Surface Morphology of Electrode.
abstract: Piezoelectric power generation using Pb(Zr,Ti)O3(PZT) nanowires grown on Nb-doped SrTiO3(nb:STO) substrate has been demonstrated. The epitaxial PZT nanowires prepared by a hydrothermal method, with a diameter and length of approximately 300 nm and 7 μm, respecively, were vertically aligned on the substrate. An embossed Au top electrode was applied to maximize the effective power generation area for non-uniform PZT nanowires. The PZT nanogenerator produced output power density of 0.56 μW/cm2 with a voltage of 0.9 V and current of 75 nA. This research suggests that the morphology control of top electrode can be useful to improve the efficiency of piezoelectric power generation.
authors.forename: Woo-Suk
authors.initials: WS
authors.lastname: Jung
authors.forename: Won-Hee
authors.initials: WH
authors.lastname: Lee
authors.forename: Byeong-Kwon
authors.initials: BK
authors.lastname: Ju
authors.forename: Seok-Jin
authors.initials: SJ
authors.lastname: Yoon
authors.forename: Chong-Yun
authors.initials: CY
authors.lastname: Kang