Double effective medium model for the optical properties of self-assembled gold nanoparticle films cross-linked with alkane dithiols

被引：11

作者：

Schelm, S

Smith, GB

Wei, G

Vella, A

Wieczorek, L

Muller, KH

Raguse, B

机构：

[1] Univ Technol Sydney, Dept Appl Phys, Sydney, NSW 2007, Australia

[2] CSIRO, Telecommun & Ind Phys, Sydney, NSW 2070, Australia

来源：

NANO LETTERS | 2004年 / 4卷 / 02期

关键词：

D O I：

10.1021/nl034948d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present a comprehensive and structurally correct optical model for layers of nanometer sized gold particles, cross-linked with alpha,omega-alkane dithiol molecules, HS-(CH2)(n)-SH with n = 2, 8, 15. The solution requires a two-stage, three-phase effective medium model based on the observed nanostructure of the three constituents, gold, thiol, and voids. Voids and their topology, which were neglected in previous models, prove to be crucial in the explanation of the optical properties.

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页码：335 / 339

页数：5

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