Here, we report high output piezoelectric voltage generation from oxidized ZnO nanowires (100 nm). Periodic high output voltage peaks were observed during series of oxygen exposure experiments. Gradual rise in piezoelectric potential from oxidized ZnO nanowires is being evidenced for the very first time. Sharp voltage peaks 464 mV, 803 mV, 1.354 V, 1.795 V and 2.44 V are observed for an exposure of oxygen for 1 h, 2 h, 3 h, 4 h and 5 h respectively in a sealed chamber at 50 ppm. It has been observed maximum output value has been saturated after 5 h of O exposure. Enhanced piezoelectric potential appearing at output stages is due to the adsorption of oxygen molecules on long ZnO nanowires, giving rise to ‘Edge Effects’ and consequently reducing reverse leakage current through nanowires and enhancing output voltage. SEM images revealed the surface morphology ZnO nanowires, diameter range was found around 100 nm. XRD pattern verified vertical growth orientation of ZnO nanowires on ...

中文翻译：

---

氧在ZnO纳米线（100 nm）上的吸附作用导致明显的边缘效应和电压增强

在这里，我们报道了从氧化的ZnO纳米线（100 nm）产生的高输出压电电压。在一系列氧气暴露实验中观察到周期性的高输出电压峰值。氧化锌纳米线的压电势逐渐上升是第一次被证明。在50 ppm的密闭室中，分别在1 h，2 h，3 h，4 h和5 h的氧气暴露下，观察到尖锐的电压峰值464 mV，803 mV，1.354 V，1.795 V和2.44V。观察到O暴露5小时后，最大输出值已饱和。在输出阶段出现的增强的压电势是由于长的ZnO纳米线上的氧分子被吸附，从而产生了“边缘效应”，从而减少了通过纳米线的反向漏电流并提高了输出电压。SEM图像显示了ZnO纳米线的表面形态，发现直径范围为100 nm左右。XRD图谱验证了ZnO纳米线在...上的垂直生长方向