Non-spherical gold nanoparticles mediated surface plasmon resonance in Er3+ doped zinc–sodium tellurite glasses: Role of heat treatment

2014 ◽  
Vol 149 ◽  
pp. 138-143 ◽  
Author(s):  
Asmahani Awang ◽  
S.K. Ghoshal ◽  
M.R. Sahar ◽  
R. Arifin ◽  
Fakhra Nawaz
2008 ◽  
Vol 368-372 ◽  
pp. 797-799 ◽  
Author(s):  
Chien Jung Huang ◽  
Pin Hsiang Chiu ◽  
Yeong Her Wang

This paper describes a sol-gel (SG) method for the coating of gold nanoparticles with uniform shells of amorphous silica. The thickness of silica could be conveniently controlled in the range of 10 to 120 nm by increasing the amount of water. Although spherical gold nanoparticles generally have a surface plasmon resonance (SPR) at a wavelength of about 520 nm, a spherical gold core with a silica shell offers a very highly tunable SPR wavelength depending on the thickness of the silica shell.


Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1490
Author(s):  
Enrico Gazzola ◽  
Michela Cittadini ◽  
Marco Angiola ◽  
Laura Brigo ◽  
Massimo Guglielmi ◽  
...  

Solution processed TiO2 anatase film was used as sensitive layer for H2 detection for two plasmonic sensor configurations: A grating-coupled surface plasmon resonance sensor and a localized surface plasmon resonance sensor with gold nanoparticles. The main purpose of this paper is to elucidate the different H2 response observed for the two types of sensors which can be explained considering the hydrogen dissociation taking place on TiO2 at high temperature and the photocatalytic activity of the gold nanoparticles.


2008 ◽  
Vol 16 (9) ◽  
pp. 6202 ◽  
Author(s):  
A. K. Pradhan ◽  
R. B. Konda ◽  
H. Mustafa ◽  
R. Mundle ◽  
O. Bamiduro ◽  
...  

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