激光制备用于传感应用的大规模纳米粒子阵列。

Laser fabrication of large-scale nanoparticle arrays for sensing applications.

机构信息

Laser Zentrum Hannover e.V., Hollerithallee 8, 30419, Hannover, Germany.

出版信息

ACS Nano. 2011 Jun 28;5(6):4843-9. doi: 10.1021/nn2009112. Epub 2011 May 5.

DOI:10.1021/nn2009112

Abstract

A novel method for high-speed fabrication of large scale periodic arrays of nanoparticles (diameters 40-200 nm) is developed. This method is based on a combination of nanosphere lithography and laser-induced transfer. Fabricated spherical nanoparticles are partially embedded into a polymer substrate. They are arranged into a hexagonal array and can be used for sensing applications. An optical sensor with the sensitivity of 365 nm/RIU and the figure of merit of 21.5 in the visible spectral range is demonstrated.

摘要

一种用于高速制造大尺寸纳米粒子（直径 40-200nm）周期阵列的新方法被开发出来。该方法基于纳米球光刻和激光诱导转移的结合。所制造的球形纳米粒子部分嵌入聚合物基底中。它们被排列成六方阵列，可用于传感应用。在可见光谱范围内，演示了具有 365nm/RIU 的灵敏度和 21.5 的品质因数的光学传感器。