The effect of plasmonic near field tuning on spontaneous emission intensity of dual emitting ZnO:Er3+ nanoparticles

被引：9

作者：

Das, Rupali ^{[1
]}

Phadke, Parikshit ^{[1
]}

Khichar, Naveen ^{[1
]}

Chawla, Santa ^{[1
]}

机构：

[1] CSIR Natl Phys Lab, Luminescent Mat Grp, New Delhi 110012, India

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2015年 / 83卷

关键词：

Plasmon; Fluorescence; Silver nanoparticles; Lanthanide ion; FDTD simulation; ENHANCED UP-CONVERSION; SILVER NANOPARTICLES; FLUORESCENCE; NANOSTRUCTURES; NANOANTENNAS; NANOPRISMS; FILMS;

D O I：

10.1016/j.spmi.2015.04.003

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The effect of plasmonic near field of silver nanoparticles (Ag NPs) on luminescence of Er3+ doped ZnO nanoparticles that exhibit dual mode excitation has been investigated. The surface plasmon resonance (SPR) energy is shown to play an important role in optical enhancements (under UV excitation) and quenching (under IR excitation) in ZnO:Er3+ NPs optimally conjugated with Ag NPs. Enhancement of total luminescence yield by 420% from ZnO:Er3+ NPs has been realized due to proximity of Ag NPs under UV excitation. The near field generated by exact Ag NP and their extinction properties were simulated through Finite difference time domain method and a direct correlation with observed fluorescence enhancement as well as quenching could be established. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：642 / 650

页数：9

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