Tuning Localized Surface Plasmon Resonance of Nanoporous Gold with a Silica Shell for Surface Enhanced Raman Scattering

被引：16
作者：
Li, Wei [1 ]
Ma, Chao [1 ]
Zhang, Ling [1 ]
Chen, Bin [2 ]
Chen, Luyang [3 ]
Zeng, Heping [1 ]
机构：
[1] Univ Shanghai Sci & Technol, Sch Opt Elect & Comp Engn, Engn Res Ctr Opt Instrument & Syst, Minist Educ,Shanghai Key Lab Modern Opt Syst, Shanghai 200093, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200030, Peoples R China
[3] East China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China
来源：
NANOMATERIALS | 2019年 / 9卷 / 02期
关键词：
localized surface plasmon resonance (LSPR); nanoporous gold (NPG); surface-enhanced Raman scattering (SERS); LEAF;
D O I：
10.3390/nano9020251
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We report the tuning of localized surface plasmon resonance (LSPR) of nanoporous gold (NPG) by silica coating, which also affects the surface enhanced Raman scattering (SERS) of NPG. In this study, controllable silica shell is assembled on the NPG surface, and a fully silica thin layer causes more than 50 nm red-shift of LSPR band due to dielectric medium dependence. Additionally, similar to 1 nm silica coated NPG film shows excellent SERS enhancement, which is due to electromagnetic coupling between ligaments and local surface plasmon field enhancement within pores, and theoretical analysis indicates that silica coating further improves the coupling effect, which demonstrates the electromagnetic origin of the tuning of SERS effect.
引用
收藏
页数：7
相关论文
共 35 条
[1]   Metal enhanced fluorescence on nanoporous gold leaf-based assay platform for virus detection [J].
Ahmed, Syed Rahin ;
Hossain, Md. Ashraf ;
Park, Jung Youn ;
Kim, Soo-Hyung ;
Lee, Dongyun ;
Suzuki, Tetsuro ;
Lee, Jaebeom ;
Park, Enoch Y. .
BIOSENSORS & BIOELECTRONICS, 2014, 58 :33-39
[2]   Surface-Enhanced Raman Scattering of Silver@Nanoporous Copper Core-Shell Composites Synthesized by an In Situ Sacrificial Template Approach [J].
Chen, L. Y. ;
Zhang, L. ;
Fujita, T. ;
Chen, M. W. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (32) :14195-14199
[3]   Nanoporous gold leaf: "Ancient technology"/advanced material [J].
Ding, Y ;
Kim, YJ ;
Erlebacher, J .
ADVANCED MATERIALS, 2004, 16 (21) :1897-+
[4]   Preparation, structure, and optical properties of nanoporous gold thin films [J].
Dixon, Matthew C. ;
Daniel, Thomas A. ;
Hieda, Mitsunori ;
Smilgies, Detlef M. ;
Chan, Moses H. W. ;
Allara, David L. .
LANGMUIR, 2007, 23 (05) :2414-2422
[5]   Three-dimensional morphology of nanoporous gold [J].
Fujita, Takeshi ;
Qian, Li-Hua ;
Inoke, Koji ;
Erlebacher, Jonah ;
Chen, Ming-Wei .
APPLIED PHYSICS LETTERS, 2008, 92 (25)
[6]   Boosting infrared energy transfer in 3D nanoporous gold antennas [J].
Garoli, D. ;
Calandrini, E. ;
Bozzola, A. ;
Ortolani, M. ;
Cattarin, S. ;
Barison, S. ;
Toma, A. ;
De Angelis, F. .
NANOSCALE, 2017, 9 (02) :915-922
[7]   Fractal-Like Plasmonic Metamaterial with a Tailorable Plasma Frequency in the near-Infrared [J].
Garoli, Denis ;
Calandrini, Eugenio ;
Bozzola, Angelo ;
Toma, Andrea ;
Cattarin, Sandro ;
Ortolani, Michele ;
De Angelis, Francesco .
ACS PHOTONICS, 2018, 5 (08) :3408-3414
[8]   Nanoporous gold leaves: preparation, optical characterization and plasmonic behavior in the visible and mid-infrared spectral regions [J].
Garoli, Denis ;
Ruffato, Gianluca ;
Zilio, Pierfrancesco ;
Calandrini, Eugenio ;
De Angelis, Francesco ;
Romanato, Filippo ;
Cattarin, Sandro .
OPTICAL MATERIALS EXPRESS, 2015, 5 (10) :2246-2256
[9]   Nanoporous gold-Application to extraordinary optical transmission of light [J].
Garoli, Denis ;
Ruffato, Gianluca ;
Cattarin, Sandro ;
Barison, Simona ;
Perino, Mauro ;
Ongarello, Tommaso ;
Romanato, Filippo .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 2013, 31 (01)
[10]   Single-step coating of mesoporous silica on cetyltrimethyl ammonium bromide-capped nanoparticles [J].
Gorelikov, Ivan ;
Matsuura, Naomi .
NANO LETTERS, 2008, 8 (01) :369-373
1234