Surface Plasmon-Enhanced Light-Emission Mechanism of Ag-Coated ZnO/Al2O3 Core/Shell Nanorod Structures

2013 ◽  
Vol 13 (5) ◽  
pp. 3335-3340 ◽  
Author(s):  
Bum-Young Noh ◽  
Seong-Ho Baek ◽  
Yong-Il Jung ◽  
Jae Hyun Kim ◽  
Il-Kyu Park
Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1728
Author(s):  
Joshua Fernandes ◽  
Sangmo Kang

The near-field enhancement and localized surface plasmon resonance (LSPR) on the core-shell noble metal nanostructure surfaces are widely studied for various biomedical applications. However, the study of the optical properties of new plasmonic non-spherical nanostructures is less explored. This numerical study quantifies the optical properties of spherical and non-spherical (prolate and oblate) dimer nanostructures by introducing finite element modelling in COMSOL Multiphysics. The surface plasmon resonance peaks of gold nanostructures should be understood and controlled for use in biological applications such as photothermal therapy and drug delivery. In this study, we find that non-spherical prolate and oblate gold dimers give excellent tunability in a wide range of biological windows. The electromagnetic field enhancement and surface plasmon resonance peak can be tuned by varying the aspect ratio of non-spherical nanostructures, the refractive index of the surrounding medium, shell thickness, and the distance of separation between nanostructures. The absorption spectra exhibit considerably greater dependency on the aspect ratio and refractive index than the shell thickness and separation distance. These results may be essential for applying the spherical and non-spherical nanostructures to various absorption-based applications.


RSC Advances ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 2733-2743
Author(s):  
Parisa Talebi ◽  
Harishchandra Singh ◽  
Ekta Rani ◽  
Marko Huttula ◽  
Wei Cao

Surface plasmonic resonance enabled Ni@NiO/NiCO3 core–shell nanostructures as promising photocatalysts for hydrogen evolution under visible light.


2008 ◽  
Vol 16 (12) ◽  
pp. 8896 ◽  
Author(s):  
Peihong Cheng ◽  
Dongsheng Li ◽  
Deren Yang

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Saji Thomas Kochuveedu ◽  
Taehwang Son ◽  
Youmin Lee ◽  
Minyung Lee ◽  
Donghyun Kim ◽  
...  

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