生长在银层上的氧化锌纳米棒阵列：一个高效的荧光增强平台。
ZnO nanorod array grown on Ag layer: a highly efficient fluorescence enhancement platform.
作者信息
Yin Yongqi, Sun Ye, Yu Miao, Liu Xiao, Jiang Tingting, Yang Bin, Liu Danqing, Liu Shaoqin, Cao Wenwu
机构信息
Condensed Matter Science and Technology Institute, School of Science, Harbin Institute of Technology, Harbin 150080, China.
State Key Laboratory of Urban Water Resource and Environment, School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China.
出版信息
Sci Rep. 2015 Jan 30;5:8152. doi: 10.1038/srep08152.
ZnO nanorods (NRs) are known for ultra-sensitive biomolecule detection through fluorescence enhancement. In this work, we demonstrate that ZnO NR arrays grown on Ag layers can significantly improve the enhancement up to 86 times compared to that grown on bare Si, and the enhancement can be modified in a controlled manner by varying Ag thickness. The much improved waveguide properties are attributed to the high reflectance of the Ag layers and their tuning effect on the diameters of ZnO NRs. Our results provide a deep insight into the mechanism of NRs-based fluorescence enhancement platform.
氧化锌纳米棒（NRs）以通过荧光增强实现超灵敏生物分子检测而闻名。在这项工作中，我们证明，与生长在裸硅上的氧化锌纳米棒阵列相比，生长在银层上的氧化锌纳米棒阵列可将增强效果显著提高至86倍，并且通过改变银的厚度，可以以可控的方式调节增强效果。波导特性的大幅改善归因于银层的高反射率及其对氧化锌纳米棒直径的调节作用。我们的结果为基于纳米棒的荧光增强平台的机制提供了深入见解。
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