Dielectric domain distribution on Au nanoparticles revealed by localized surface plasmon resonance

2018 ◽  
Vol 6 (44) ◽  
pp. 12038-12044 ◽  
Author(s):  
Yi Luo ◽  
Yadong Zhou ◽  
Shengli Zou ◽  
Jing Zhao
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Au Nanoparticles ◽  
Extinction Spectrum ◽  
Localized Surface Plasmon ◽  
Uniform Layer

The LSPR of Au nanospheres shows almost no shift in the extinction spectrum with attachment of a silica domain but considerable shift with a uniform layer of silica, indicating LSPR can be used to differentiate the segregated/uniform dielectric distribution.

scholarly journals Localized surface plasmon resonance of Au/TiO2(110): substrate and size influence from in situ optical and structural investigation

2020 ◽  
Vol 2 (6) ◽  
pp. 2448-2461 ◽  
Author(s):  
Y. Soldo-Olivier ◽  
A. Abisset ◽  
A. Bailly ◽  
M. De Santis ◽  
S. Garaudée ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Structural Investigation ◽  
Au Nanoparticles ◽  
Localized Surface Plasmon ◽  
The Relationship

In situ experiments coupling GISAXS, SDRS and GIXRD allowed investigating the relationship between morphology, structure and plasmonic properties of Au nanoparticles (2–6 nm) during their growth on TiO2(111).

scholarly journals Protection of silver and gold LSPR biosensors in corrosive NaCl environment by short alkanethiol molecules; characterized by extinction spectrum, helium ion microscopy and SERS

RSC Advances ◽  
2019 ◽  
Vol 9 (17) ◽  
pp. 9565-9576 ◽  
Author(s):  
Hazuki Haraguchi ◽  
Natalie Frese ◽  
Armin Gölzhäuser ◽  
Hiroyuki Takei
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Extinction Spectrum ◽  
Localized Surface Plasmon ◽  
Biologically Relevant ◽  
Helium Ion ◽  
Ion Microscopy ◽  
Surface Plasmon Resonance Sensors

We investigated the utility of localized surface plasmon resonance sensors in a biologically relevant environment containing NaCl.

Localized surface plasmon resonance on Au nanoparticles: tuning and exploitation for performance enhancement in ultrathin photovoltaics

RSC Advances ◽  
2016 ◽  
Vol 6 (31) ◽  
pp. 26216-26226 ◽  
Author(s):  
Vivek Garg ◽  
Brajendra S. Sengar ◽  
Vishnu Awasthi ◽  
Aaryashree Aaryashree ◽  
Pankaj Sharma ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Cross Section ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Au Nanoparticles ◽  
Performance Enhancement ◽  
Fine Tuning ◽  
Localized Surface Plasmon ◽  
Absorption Cross

We report a detailed correlation analysis of the size, shape, and distribution of Au nanoparticles (NPs) on fine-tuning of localized surface plasmon resonance and optical absorption cross-section.

scholarly journals Fabrication of Gold Nanodot Array for the Localized Surface Plasmon Resonance

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Young Min Bae ◽  
Kyeong-Hee Lee ◽  
Jeongwon Yang ◽  
Duchang Heo
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Extinction Spectrum ◽  
Peak Position ◽  
Localized Surface Plasmon ◽  
Large Area ◽  
Nanodot Array ◽  
Extinction Peak

Localized surface plasmon resonance (LSPR) is a promising method for detecting antigen-antibody binding in label-free biosensors. In this study, the fabrication of a LSPR substrate with a gold nanodot array through the lift-off process of an alumina mask is reported. The substrate showed an extinction peak in its extinction spectrum, and the peak position was dependent on the height of the gold nanodot array, and the change of extinction peak with the height could be predicted by the numerical simulation. In addition, the peak position was observed to be red-shifted with the increasing RIU value of the medium surrounding the gold nanodot array. In particular, the peak position in the 10 nm thick gold nanodot array was approximately 710 nm in air, and the sensitivity, defined as the ratio of the shift of peak position to the RIU of the medium, was 323.6 nm/RIU. The fabrication procedure could be applied to fabricate the LSPR substrates with a large area.

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