Nanoimprint Lithography of Al Nanovoids for Deep-UV SERS

被引：90
|
作者：
Ding, Tao [1 ]
Sigle, Daniel O. [1 ]
Hermann, Lars O. [1 ]
Wolverson, Daniel [2 ]
Baumberg, Jeremy J. [1 ]
机构：
[1] Univ Cambridge, Cavendish Lab, Nanophoton Ctr, Cambridge CB3 0HE, England
[2] Univ Bath, Dept Phys, Bath BA2 7AY, Avon, England
来源：
ACS APPLIED MATERIALS & INTERFACES | 2014年 / 6卷 / 20期
基金：
英国工程与自然科学研究理事会;
关键词：
resonant Raman; nanobowls; stamps; polymer opals; adenine; ENHANCED RAMAN-SCATTERING; NANOPARTICLES; RESONANCE; PYRIDINE; SPECTRA; ARRAYS;
D O I：
10.1021/am505511v
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Deep-ultraviolet surface-enhanced Raman scattering (UV-SERS) is a promising technique for bioimaging and detection because many biological molecules possess UV absorption lines leading to strongly resonant Raman scattering. Here, Al nanovoid substrates are developed by combining nanoimprint lithography of etched polymer/silica opal films with electron beam evaporation, to give a high-performance sensing platform for UV-SERS. Enhancement by more than 3 orders of magnitude in the UV-SERS performance was obtained from the DNA base adenine, matching well the UV plasmonic optical signatures and simulations, demonstrating its suitability for biodetection.
引用
收藏
页码：17358 / 17363
页数：6
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