Aggregation-based fabrication and assembly of roughened composite metallic nanoshells: Application in surface-enhanced Raman scattering

被引:52
作者
Lu, LH
Zhang, HJ [1 ]
Sun, GY
Xi, SQ
Wang, HS
Li, XL
Wang, X
Zhao, B
机构
[1] Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Rare Earth Chem & Phys, Changchun 130022, Peoples R China
[2] Jilin Univ, Key Lab Supramol Struct & Spect, Changchun 130023, Peoples R China
关键词
D O I
10.1021/la034738g
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
This paper reports an aggregation-based method for the fabrication of composite Au/Ag nanoshells with tunable thickness and surface roughness. It is found that the resultant roughened composite Au/Ag nanoshells can attract each other spontaneously to form films at the air-water interface. Importantly, such films can be transferred onto the solid substrates without being destroyed and show excellent surface-enhanced Raman scattering (SERS) enhancement ability. Their strong enhancement ability may stem from the unique two-dimensional structure itself.
引用
收藏
页码:9490 / 9493
页数:4
相关论文
共 27 条
[1]   Direct observation of localized dipolar excitations on rough nanostructured surfaces [J].
Bozhevolnyi, SI ;
Markel, VA ;
Coello, V ;
Kim, W ;
Shalaev, VM .
PHYSICAL REVIEW B, 1998, 58 (17) :11441-11448
[2]   C60 mediated aggregation of gold nanoparticles [J].
Brust, M ;
Kiely, CJ ;
Bethell, D ;
Schiffrin, DJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (47) :12367-12368
[3]   THE INTERACTION OF COLLOIDAL PARTICLES COLLECTED AT FLUID INTERFACES [J].
CHAN, DYC ;
HENRY, JD ;
WHITE, LR .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1981, 79 (02) :410-418
[4]   Preparation of platinum colloids on polystyrene nanospheres and their catalytic properties in hydrogenation [J].
Chen, CW ;
Serizawa, T ;
Akashi, M .
CHEMISTRY OF MATERIALS, 1999, 11 (05) :1381-1389
[5]   Colloidal metal deposition onto functionalized polystyrene microspheres [J].
Dokoutchaev, A ;
James, JT ;
Koene, SC ;
Pathak, S ;
Prakash, GKS ;
Thompson, ME .
CHEMISTRY OF MATERIALS, 1999, 11 (09) :2389-2399
[6]   Fabrication of compact silver nanoshells on polystyrene spheres through electrostatic attraction [J].
Dong, AG ;
Wang, YJ ;
Tang, Y ;
Ren, N ;
Yang, WL ;
Gao, Z .
CHEMICAL COMMUNICATIONS, 2002, (04) :350-351
[7]   Some interesting properties of metals confined in time and nanometer space of different shapes [J].
El-Sayed, MA .
ACCOUNTS OF CHEMICAL RESEARCH, 2001, 34 (04) :257-264
[8]   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
[9]   Two-dimensional arrays of colloidal gold particles: A flexible approach to macroscopic metal surfaces [J].
Grabar, KC ;
Allison, KJ ;
Baker, BE ;
Bright, RM ;
Brown, KR ;
Freeman, RG ;
Fox, AP ;
Keating, CD ;
Musick, MD ;
Natan, MJ .
LANGMUIR, 1996, 12 (10) :2353-2361
[10]   Kinetic control of interparticle spacing in Au colloid-based surfaces: Rational nanometer-scale architecture [J].
Grabar, KC ;
Smith, PC ;
Musick, MD ;
Davis, JA ;
Walter, DG ;
Jackson, MA ;
Guthrie, AP ;
Natan, MJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (05) :1148-1153