表面粗糙度对蘸笔纳米光刻的影响。

Effect of surface roughness on dip-pen nanolithography.

作者信息

Tang Qian, Shi San-Qiang, Zhou Li-Min

机构信息

Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P R. China.

出版信息

J Nanosci Nanotechnol. 2005 Dec;5(12):2167-71. doi: 10.1166/jnn.2005.450.

DOI:10.1166/jnn.2005.450

PMID:16430157

Abstract

In the present work, five gold thin films with various surface roughnesses were prepared by sputtering and the influence of the surface roughness of gold substrate on dip-pen nanolithography (DPN) was studied using 1-octadecanethiol (ODT) and poly(vinylidene fluoride-trifluorethylene) [P(VDFTrFE)] as inks. It was shown that surface roughness influences both the contrast in lateral force microscopy (LFM) images and the transport rate of ink. Surfaces with less roughness give good contrast in LFM images, while rough surfaces give poor contrast. The transport rate of ink increases as the roughness decreases; however, the extent of the influence is strongly ink-dependent.

摘要

在本工作中，通过溅射制备了具有不同表面粗糙度的五个金薄膜，并使用1-十八烷硫醇（ODT）和聚（偏二氟乙烯-三氟乙烯）[P（VDF-TrFE）]作为墨水，研究了金基底表面粗糙度对蘸笔纳米光刻（DPN）的影响。结果表明，表面粗糙度既影响侧向力显微镜（LFM）图像中的对比度，也影响墨水的传输速率。粗糙度较小的表面在LFM图像中具有良好的对比度，而粗糙表面的对比度较差。墨水的传输速率随着粗糙度的降低而增加；然而，影响程度强烈依赖于墨水。