An optimal substrate design for SERS: dual-scale diamond-shaped gold nano-structures fabricated via interference lithography

被引:54
作者
Ahn, Hyo-Jin
Thiyagarajan, Pradheep
Jia, Lin [1 ]
Kim, Sun-I
Yoon, Jong-Chul
Thomas, Edwin L. [2 ]
Jang, Ji-Hyun
机构
[1] MIT, Dept Mat Sci & Engn, Inst Soldier Nanotechnol, Cambridge, MA 02139 USA
[2] Rice Univ, Sch Engn, Houston, TX 77251 USA
关键词
ENHANCED RAMAN-SPECTROSCOPY; SENSITIZED SOLAR-CELLS; ELECTRON-BEAM LITHOGRAPHY; PLASMON RESONANCES; SCATTERING; PARTICLES; ARRAYS; NANOPARTICLES; MONOLAYERS; EFFICIENCY;
D O I
10.1039/c3nr33498h
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Dual-scale diamond-shaped gold nanostructures (d-DGNs) with larger scale diamond-shaped gold nanoposts (DGNs) coupled to smaller scale gold nanoparticles have been fabricated via interference lithography as a highly reliable and efficient substrate for surface enhanced Raman scattering (SERS). The inter-and intra-particle plasmonic fields of d-DGNs are varied by changing the periodicity of the DGNs and the density of gold nanoparticles. Because of the two different length scales in the nanostructures, d-DGNs show multipole plasmonic peaks as well as dipolar plasmonic peaks, leading to a SERS enhancement factor of greater than 10(9). Simulations are carried out by finite-difference time-domain (FDTD) methods to evaluate the dependence of the inter-and intra-particle plasmonic field and the results are in good agreement with the experimentally obtained data. Our studies reveal that the combination of two different length scales is a straightforward approach for achieving reproducible and great SERS enhancement by light trapping in the diamond-shaped larger scale structures as well as efficient collective plasmon oscillation in the small size particles.
引用
收藏
页码:1836 / 1842
页数:7
相关论文
共 45 条
[1]   Surface-enhanced Raman spectroscopy substrates created via electron beam lithography and nanotransfer printing [J].
Abu Hatab, Nahla A. ;
Oran, Jenny M. ;
Sepaniak, Michael J. .
ACS NANO, 2008, 2 (02) :377-385
[2]   Non-lithographic SERS Substrates: Tailoring Surface Chemistry for Au Nanoparticle Cluster Assembly [J].
Adams, Sarah M. ;
Campione, Salvatore ;
Caldwell, Joshua D. ;
Bezares, Francisco J. ;
Culbertson, James C. ;
Capolino, Filippo ;
Ragan, Regina .
SMALL, 2012, 8 (14) :2239-2249
[3]   Power conversion efficiency enhancement based on the bio-inspired hierarchical antireflection layer in dye sensitized solar cells [J].
Ahn, Hyo-Jin ;
Kim, Sun-I ;
Yoon, Jong-Chul ;
Lee, Jung-Soo ;
Jang, Ji-Hyun .
NANOSCALE, 2012, 4 (15) :4464-4469
[4]   Environmental applications of plasmon assisted Raman scattering [J].
Alvarez-Puebla, R. A. ;
Liz-Marzan, L. M. .
ENERGY & ENVIRONMENTAL SCIENCE, 2010, 3 (08) :1011-1017
[5]   Ultrahigh-Density Array of Silver Nanoclusters for SERS Substrate with High Sensitivity and Excellent Reproducibility [J].
Cho, Won Joon ;
Kim, Youngsuk ;
Kim, Jin Kon .
ACS NANO, 2012, 6 (01) :249-255
[6]   Gold Mesostructures with Tailored Surface Topography and Their Self-Assembly Arrays for Surface-Enhanced Raman Spectroscopy [J].
Fang, Jixiang ;
Du, Shuya ;
Lebedkin, Sergei ;
Li, Zhiyuan ;
Kruk, Robert ;
Kappes, Manfred ;
Hahn, Horst .
NANO LETTERS, 2010, 10 (12) :5006-5013
[7]   SELF-ASSEMBLED METAL COLLOID MONOLAYERS - AN APPROACH TO SERS SUBSTRATES [J].
FREEMAN, RG ;
GRABAR, KC ;
ALLISON, KJ ;
BRIGHT, RM ;
DAVIS, JA ;
GUTHRIE, AP ;
HOMMER, MB ;
JACKSON, MA ;
SMITH, PC ;
WALTER, DG ;
NATAN, MJ .
SCIENCE, 1995, 267 (5204) :1629-1632
[8]   Collective theory for surface enhanced Raman scattering [J].
GarciaVidal, FJ ;
Pendry, JB .
PHYSICAL REVIEW LETTERS, 1996, 77 (06) :1163-1166
[9]   ELECTROMAGNETIC THEORY OF ENHANCED RAMAN-SCATTERING BY MOLECULES ADSORBED ON ROUGH SURFACES [J].
GERSTEN, J ;
NITZAN, A .
JOURNAL OF CHEMICAL PHYSICS, 1980, 73 (07) :3023-3037
[10]   Plasmons in Strongly Coupled Metallic Nanostructures [J].
Halas, Naomi J. ;
Lal, Surbhi ;
Chang, Wei-Shun ;
Link, Stephan ;
Nordlander, Peter .
CHEMICAL REVIEWS, 2011, 111 (06) :3913-3961