纳米棒

Fabrication of Vertically Oriented ZnO Micro-crystals array embedded in Polymeric matrix for Flexible DeviceZnO;Semiconductor;Nanorod;Flexible device;Pressure-sensor;Recently, there has been substantial interest in flexible and wearable devices whose properties and performances are close to conventional devices on hard substrates. Despite the advancement on flexible devices with organic semiconductors or carbon nanotube films, their performances are limited by the carrier scattering at the molecular to molecular or nanotube-to-nanotube junctions.

具有优良柔韧性、导电性和机械耐久性的可拉伸电极是柔性电子新兴和激动人心的领域中最基本的元件。本文提出了一种将银纳米棒( AgNRs )嵌入到聚二甲基硅氧烷( PDMS )基体中，通过独特的角度沉积技术制备这种可拉伸电极的方法。在其中嵌入AgNRs后，PDMS的表面、力学和电学性能都发生了明显的变化。结果表明，AgNRs嵌入PDMS基体后，表面粗糙度和极性增大。由于压痕深度效应，弹性模量( E )和硬度( H )随着压痕载荷的增加而减小。由于AgNRs在PDMS基体中具有很强的界面结合力，纳米复合材料的E和H分别比PDMS膜提高了167.6和93.3 %。此外，AgNRs - PDMS薄膜具有10 - 7 Ω m的电阻率。它在弯曲、扭转、拉伸等各种机械应变下仍保持导电，这一点用发光二极管电路得到了证明。同时，银的抗菌活性使其有望成为可穿戴电子的候选产品。