Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada ; Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
Nanoscale Res Lett. 2014 Jun 19;9(1):310. doi: 10.1186/1556-276X-9-310. eCollection 2014.
Silver nanowire transparent electrodes are a promising alternative to transparent conductive oxides. However, their surface roughness presents a problem for their integration into devices with thin layers such as organic electronic devices. In this paper, hot rollers are used to soften plastic substrates with heat and mechanically press the nanowires into the substrate surface. By doing so, the root-mean-square surface roughness is reduced to 7 nm and the maximum peak-to-valley value is 30 nm, making the electrodes suitable for typical organic devices. This simple process requires no additional materials, which results in a higher transparency, and is compatible with roll-to-roll fabrication processes. In addition, the adhesion of the nanowires to the substrate significantly increases.
银纳米线透明电极是一种有前途的透明导电氧化物替代品。然而，它们的表面粗糙度是将其集成到具有薄层层如有机电子器件的设备中的一个问题。在本文中，热辊用于通过热软化具有塑料衬底并机械地将纳米线压入衬底表面。通过这样做，均方根表面粗糙度降低到 7nm，最大峰谷值降低到 30nm，使得电极适合于典型的有机器件。这种简单的工艺不需要额外的材料，因此具有更高的透明度，并且与卷对卷制造工艺兼容。此外，纳米线与衬底的附着力显著增加。
