Photoluminescence of rhodamine 6G in plasmonic field of Au nanoparticles: Temperature effects

被引：13

作者：

Yeshchenko, Oleg A. ^{[1
]}

Bondarchuk, Illya S. ^{[1
]}

Kozachenko, Viktor V. ^{[1
]}

Losytskyy, Mykhaylo Yu. ^{[1
]}

机构：

[1] Tares Shevchenko Natl Univ Kyiv, Dept Phys, UA-01601 Kiev, Ukraine

来源：

JOURNAL OF LUMINESCENCE | 2015年 / 158卷

关键词：

Gold nanoparticles; Surface plasmon resonance; Rhodamine 6G photoluminescence enhancement; Temperature effects; ENHANCED RAMAN-SPECTROSCOPY; SMALL SILVER PARTICLES; OPTICAL-PROPERTIES; GOLD NANOPARTICLES; ENERGY-TRANSFER; ABSORPTION-SPECTRA; AQUEOUS-SOLUTION; NOBLE-METALS; TUMOR-CELLS; SCATTERING;

D O I：

10.1016/j.jlumin.2014.10.018

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Influence of temperature on the photoluminescence of rhodamine 6G deposited on 2D array of the gold nanoparticles was studied in the temperature range of 78-278 K. The factor of surface plasmonic enhancement of rhodamine luminescence was found to decrease monotonically with increasing temperature. Electron-phonon scattering and thermal expansion of the gold nanoparticles were considered as two competing physical mechanisms of the temperature dependence of plasmonic enhancement factor. The calculations showed the significant prevalence of the electron-phonon scattering. The temperature induced increase of the scattering rate leads to higher plasmon damping that causes the decrease of plasmonic enhancement of rhodamine 6G luminescence. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：294 / 300

页数：7

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