纳米发生器
材料科学
压电
异质结
纳米线
光电子学
双层
基质(水族馆)
电流密度
纳米技术
复合材料
化学
膜
生物化学
海洋学
物理
量子力学
地质学
作者
Chunlei Liu,Weiguang Zhang,Jianbo Sun,Jing Wen,Qing Yang,Huixin Cuo,Xinzhi Ma,Mingyi Zhang
标识
DOI:10.1016/j.apsusc.2014.10.081
摘要
The pin-shaped ZnO–ZnSe nanowire arrays on the surface of a carbon fiber (CF/ZnO–ZnSe) were synthesized via two-step hydrothermal method. Based on a single CF/ZnO–ZnSe on a polymer substrate, a flexible nanogenerator device was fabricated which produced high-output current about 333 μA when the device was subjected to a −0.55% tensile strain and the current was enhanced by as much as 66%. The superior piezoelectric performance is derived from the piezopotential in ZnO nanowire arrays induced by the compressive strain or tensile strain, which lowers or raises the barrier height and increases or decreases the current density at the ZnO–ZnSe heterojunction interface. This kind of CF/ZnO–ZnSe bilayer structure has a great potential for nanogenerator device and this result opens up the path for practical applications of piezoelectric nanogenerator.
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