IMPROVED SURFACE ENHANCED RAMAN SCATTERING FOR NANOSTRUCTURED SILVER ON POROUS SILICON FOR ULTRASENSITIVE DETERMINATION OF 2,4,6-TRINITROTOLUENE

被引：30

作者：

Lai, Yuming ^{[1
,3
]}

Wang, Jing ^{[1
]}

He, Tao ^{[1
]}

Sun, Shuqing ^{[2
]}

机构：

[1] Natl Ctr Nanosci & Technol, Lab Nanodevice, Beijing, Peoples R China

[2] Tsinghua Univ, Grad Sch Shenzhen, Shenzhen Key Lab Minimally Invas Med Technol, Lab Opt Imaging & Sensing, Shenzhen 518055, Peoples R China

[3] Chinese Acad Sci, Grad Univ, Beijing, Peoples R China

来源：

ANALYTICAL LETTERS | 2014年 / 47卷 / 05期

关键词：

Porous Si; SERS; Surface enhanced Raman scattering; TNT; METAL-DEPOSITION; SERS; TNT; NANOPARTICLES;

D O I：

10.1080/00032719.2013.850089

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Label-free and low-cost surface-enhanced Raman scattering-active substrates of silver nanostructures on porous silicon have been synthesized. The morphology and spectroscopic properties were investigated as a function of concentration and immersion time. The enhancement factor of optimized silver-porous silicon substrate was estimated to be 2.18x10(8) by the use of p-thiocresol as a Raman probe. The optimized substrate was used to determine 50pg of 2,4,6-trinitrotoluene. These results demonstrate that the prepared silver-porous silicon substrates are promising for the ultra-sensitive determination of organic molecules.

引用

页码：833 / 842

页数：10

共 37 条

[1] Tunable SERS in Gold Nanorod Dimers through Strain Control on an Elastomeric Substrate [J].

Alexander, Kristen D. ;

Skinner, Kwan ;

Zhang, Shunping ;

Wei, Hong ;

Lopez, Rene .

NANO LETTERS, 2010, 10 (11) :4488-4493

[2]

Budevski E., 1996, ELECT PHASE FORMATIO

[3] Surface-enhanced Raman spectroscopy using self-assembled silver nanoparticles on silicon nanotips [J].

Chattopadhyay, S ;

Lo, HC ;

Hsu, CH ;

Chen, LC ;

Chen, KH .

CHEMISTRY OF MATERIALS, 2005, 17 (03) :553-559

[4] Optimization of porous silicon preparation technology for SERS applications [J].

Chursanova, M. V. ;

Germash, L. P. ;

Yukhymchuk, V. O. ;

Dzhagan, V. M. ;

Khodasevich, I. A. ;

Cojoc, D. .

APPLIED SURFACE SCIENCE, 2010, 256 (11) :3369-3373

[5]

Content S, 2000, CHEM-EUR J, V6, P2205, DOI 10.1002/1521-3765(20000616)6:12<2205::AID-CHEM2205>3.0.CO

[6]

2-A

[7] Gold Nanoparticle Based Label-Free SERS Probe for Ultrasensitive and Selective Detection of Trinitrotoluene [J].

Dasary, Samuel S. R. ;

Singh, Anant Kumar ;

Senapati, Dulal ;

Yu, Hongtao ;

Ray, Paresh Chandra .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (38) :13806-13812

[8] SERS detection of low-concentration adenine by a patterned silver structure immersion plated on a silicon nanoporous pillar array [J].

Feng, Fei ;

Zhi, Gang ;

Jia, He Shun ;

Cheng, Liang ;

Tian, Yong Tao ;

Li, Xin Jian .

NANOTECHNOLOGY, 2009, 20 (29)

[9] RAMAN-SPECTRA OF PYRIDINE ADSORBED AT A SILVER ELECTRODE [J].

FLEISCHMANN, M ;

HENDRA, PJ ;

MCQUILLAN, AJ .

CHEMICAL PHYSICS LETTERS, 1974, 26 (02) :163-166

[10] Porous silicon as efficient surface enhanced Raman scattering (SERS) substrate [J].

Giorgis, F. ;

Descrovi, E. ;

Chiodoni, A. ;

Froner, E. ;

Scarpa, M. ;

Venturello, A. ;

Geobaldo, F. .

APPLIED SURFACE SCIENCE, 2008, 254 (22) :7494-7497

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