Surface plasmon as a probe for melting of silver nanoparticles

被引：46

作者：

Yeshchenko, Oleg A. ^{[1
]}

Dmitruk, Igor M. ^{[1
]}

Alexeenko, Alexandr A. ^{[2
]}

Kotko, Andriy V. ^{[3
]}

机构：

[1] Natl Taras Shevchenko Kyiv Univ, Dept Phys, UA-03127 Kiev, Ukraine

[2] Gomel State Tech Univ, Lab Tech Ceram & Silicates, Gomel 246746, BELARUS

[3] IM Frantsevich Inst Problems Mat Sci, UA-03680 Kiev, Ukraine

来源：

NANOTECHNOLOGY | 2010年 / 21卷 / 04期

关键词：

OPTICAL-PROPERTIES; TEMPERATURE-DEPENDENCE; SIZE;

D O I：

10.1088/0957-4484/21/4/045203

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The temperature dependence of the surface plasmon energy and bandwidth for silver nanoparticles in the size range 8-30 nm embedded in a silica matrix has been studied using diffuse reflection spectroscopy. The dependence shows a non-monotonic jump-like behaviour indicating a low-temperature size-dependent melting of silver nanoparticles. The melting point decreases with the decrease of the nanoparticle size. The hysteresis in the temperature dependence of the surface plasmon bandwidth has been observed, indicating the first-order phase transition.

引用

页数：6

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