High pressure study of the surface plasmon resonance in Ag nanoparticles

被引：11

作者：

Christofilos, D ^{[1
]}

Assimopoulos, S

Del Fatti, N

Voisin, C

Vallèe, F

Kourouklis, GA

Ves, S

机构：

[1] Aristotle Univ Thessaloniki, Sch Technol, GR-54124 Thessaloniki, Greece

[2] Univ Bordeaux 1, CPMOH, F-33405 Talence, France

[3] Ecole Normale Super, LPMC, F-75231 Paris 05, France

[4] Aristotle Univ Thessaloniki, Dept Phys, GR-54124 Thessaloniki, Greece

来源：

HIGH PRESSURE RESEARCH | 2003年 / 23卷 / 1-2期

关键词：

metal nanoparticles; surface plasmon; size effects; absorption; high pressure;

D O I：

10.1080/0895795031000109724

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The optical absorption spectra of a composite material formed by silver nanoparticles of 12.1 nm radius embedded in a phosphate glass have been studied as a function of hydrostatic pressure up to 11 GPa. The confinement induces a strong absorption peak, the surface plasmon resonance, which is red shifted by the application of pressure. Upon pressure release, a hysterisis is observed persisting even at ambient conditions. The pressure-induced changes in the properties of both the glass and the silver contribute to the observed behaviour, the irreversibility of which, is attributed to the pressure induced irreversible densification of glass.

引用

页码：23 / 27

页数：5

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