Versatile gold based SERS substrates fabricated by ultrafast laser ablation for sensing picric acid and ammonium nitrate

被引：52
作者：
Byram, Chandu [1 ]
Moram, Sree Sathya Bharathi [1 ]
Shaik, Abdul Kalam [1 ]
Soma, Venugopal Rao [1 ]
机构：
[1] Univ Hyderabad, ACRHEM, Prof CR Rao Rd, Hyderabad 500046, Andhra Pradesh, India
来源：
CHEMICAL PHYSICS LETTERS | 2017年 / 685卷
关键词：
ENHANCED RAMAN-SCATTERING; AG NANOPARTICLES; SURFACE; SPECTROSCOPY;
D O I：
10.1016/j.cplett.2017.07.043
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We demonstrate the detection of picric acid (PA) and ammonium nitrate (AN) at mM concentrations by utilizing gold (Au) nanostructures (NSs) as surface enhanced Raman scattering (SERS) substrates fabricated using the technique of ultrafast laser ablation in liquids. Au NPs and NSs were also utilized for detecting Rhodamine 6G (Rh6G) and methylene blue (MB). Detection of all the molecules using the same substrates (NPs and NSs) demonstrated their versatility. Detection limits of 10 (5), 10 (6), 10 (7), 10 (8) M were achieved for AN, PA, Rh6G and MB, respectively. Reproducibility of the SERS intensity using NSs and NPs as substrates demonstrate their efficacy. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：103 / 107
页数：5
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