Optical properties of star-shaped gold nanoparticles

被引：1003

作者：

Nehl, CL

Liao, HW

Hafner, JH ^{[1
]}

机构：

[1] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA

[2] Rice Univ, Dept Chem, Houston, TX 77005 USA

来源：

NANO LETTERS | 2006年 / 6卷 / 04期

关键词：

D O I：

10.1021/nl052409y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Here we report the synthesis, structure, and optical properties of ca. 100 nm star-shaped gold nanoparticles. Single particle spectroscopy measurements revealed that these nanoparticles have multiple plasmon resonances resulting in polarization-dependent scattering with multiple spectral peaks, which correspond to the different tips on the star-shaped structure. The plasmon resonances were also found to be extremely sensitive to the local dielectric environment.

引用

页码：683 / 688

页数：6

共 47 条

[1] Coupling and entangling of quantum states in quantum dot molecules
Bayer, M
Hawrylak, P
Hinzer, K
Fafard, S
Korkusinski, M
Wasilewski, ZR
Stern, O
Forchel, A
[J]. SCIENCE, 2001, 291 (5503) : 451 - 453
[2] Chen HM, 2005, J PHYS CHEM B, V109, P19553, DOI 10.1021/jp0536571
[3] Gold nanocages: Bioconjugation and their potential use as optical imaging contrast agents
Chen, J
Saeki, F
Wiley, BJ
Cang, H
Cobb, MJ
Li, ZY
Au, L
Zhang, H
Kimmey, MB
Li, XD
Xia, YN
[J]. NANO LETTERS, 2005, 5 (03) : 473 - 477
[4] Monopod, bipod, tripod, and tetrapod gold nanocrystals
Chen, SH
Wang, ZL
Ballato, J
Foulger, SH
Carroll, DL
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (52) : 16186 - 16187
[5] Massive fabrication of free-standing one-dimensional Co/Pt nanostructures and modulation of ferromagnetism via a programmable barcode layer effect
Choi, JR
Oh, SJ
Ju, H
Cheon, J
[J]. NANO LETTERS, 2005, 5 (11) : 2179 - 2183
[6] Perpendicular giant magnetoresistance of NiFe/Cu multilayered nanowires
Dubois, S
Marchal, C
Beuken, JM
Piraux, L
Duvail, JL
Fert, A
George, JM
Maurice, JL
[J]. APPLIED PHYSICS LETTERS, 1997, 70 (03) : 396 - 398
[7] Selective colorimetric detection of polynucleotides based on the distance-dependent optical properties of gold nanoparticles
Elghanian, R
Storhoff, JJ
Mucic, RC
Letsinger, RL
Mirkin, CA
[J]. SCIENCE, 1997, 277 (5329) : 1078 - 1081
[8] Surface atomic defect structures and growth of gold nanorods
Gai, PL
Harmer, MA
[J]. NANO LETTERS, 2002, 2 (07) : 771 - 774
[9] Fine-tuning the shape of gold nanorods
Gou, LF
Murphy, CJ
[J]. CHEMISTRY OF MATERIALS, 2005, 17 (14) : 3668 - 3672
[10] Nanoscale optical biosensor: Short range distance dependence of the localized surface plasmon resonance of noble metal nanoparticles
Haes, AJ
Zou, SL
Schatz, GC
Van Duyne, RP
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (22) : 6961 - 6968

← 1 2 3 4 5 →