Dynamic Depolarized Light Scattering of Small Round Plasmonic Nanoparticles: When Imperfection is Only Perfect

被引：33

作者：

Balog, Sandor ^{[1
]}

Rodriguez-Lorenzo, Laura ^{[1
]}

Monnier, Christophe A. ^{[1
]}

Michen, Benjamin ^{[1
]}

Obiols-Rabasa, Marc ^{[2
]}

Casal-Dujat, Lucia ^{[2
]}

Rothen-Rutishauser, Barbara ^{[1
]}

Petri-Fink, Alke ^{[1
,3
]}

Schurtenberger, Peter ^{[2
]}

机构：

[1] Univ Fribourg, Adolphe Merkle Inst, CH-1723 Marly, Switzerland

[2] Lund Univ, Dept Chem, S-22100 Lund, Sweden

[3] Univ Fribourg, Dept Chem, CH-1700 Fribourg, Switzerland

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2014年 / 118卷 / 31期

基金：

瑞典研究理事会;

关键词：

GOLD NANOPARTICLES; SIZE; ADSORPTION;

D O I：

10.1021/jp504264f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Although small round gold nanoparticles (Au NPs) possess only a small degree of shape anisotropy, they support localized surface plasmon resonances and exhibit intrinsic optical anisotropy. These inherent features promote depolarized light scattering, whose temporal fluctuations carry information about rotational Brownian dynamics, and thus can be used to describe the size distribution of round Au NPs. We demonstrate that this allows for a much more accurate determination of particle size and polydispersity through depolarized dynamic light scattering when compared to standard particle sizing with light scattering.

引用

页码：17968 / 17974

页数：7

共 33 条

[1]

Nanogold: A Quantitative Phase Map [J].