Evolution of the localized surface plasmon resonance and electron confinement effect with the film thickness in ultrathin Au films

被引：9

作者：

Li, X. D. ^{[1
]}

Chen, T. P. ^{[1
]}

Liu, Y. ^{[2
]}

Leong, K. C. ^{[3
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

[2] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China

[3] GLOBALFOUNDRIES Singapore Pte Ltd, Singapore 738406, Singapore

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2015年 / 17卷 / 02期

关键词：

Localized surface plasmon resonance; Interband transitions; Gold nanoparticles; Ellipsometry; OPTICAL-PROPERTIES; METALLIC-FILMS; NANOPARTICLES; SIZE; GOLD;

D O I：

10.1007/s11051-015-2880-1

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Localized surface plasmon resonance (LSPR) and electron confinement effects on the interband transitions and free-electron absorption in ultrathin Au films with the film thicknesses of about 1-12 nm are investigated. A significant evolution of the LSPR, interband transition energies, plasma energy, and conductivity with the film thickness is observed. The evolution is attributed to the changes in the size, shape, and spacing of the self-assembled gold nanoparticles (Au NPs) with the sizes from several nanometers to 110 nm as well as the aggregation of the Au NPs in the Au films.

引用

页数：8

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