Article (Scientific journals)
Realtime spectroscopic ellipsometry of plasmonic Nanoparticles growth in PolyVinyl Alcohol thin films.
Kfoury, Patrick; Battie, Yann; En Naciri, Aotmane et al.
2024In Journal of Nanoparticle Research
Peer Reviewed verified by ORBi
 

Files


Full Text
Kfoury_JNR_2024.pdf
Publisher postprint (2.82 MB)
Request a copy

All documents in ORBi UMONS are protected by a user license.

Send to



Details



Keywords :
Spectroscopy ellipsometry; Plasmon resonance; Nanocomposites; Optical properties; Silver nanoparticles; Effective medium theories; Ostwald ripening; nanoparticles growth
Abstract :
[en] The thermal growth of silver nanoparticles embedded in Poly-vinyl alcohol thin films is studied as a function of annealing time by in-situ spectroscopic ellipsometry in the visible spectral range. Each recorded spectrum is analyzed by the Shape Distributed Effective Medium Theory model from which are determined the time evolutions of the film thickness, the shape distribution, the volume fraction of the nanoparticles and the effective dielectric function of the nanocomposite film. The estimated shape distribution shows that the nanoparticles remain almost spherical in the course of the annealing process in good agreement with the electronic microscopy examinations of the samples. As expected, the films exhibit a plasmon resonance band, the amplitude of which increases during the annealing while the film thickness decreases. The growth mechanism of the silver NPs was also investigated by analyzing the variation of their volume fraction in the films. The obtained results show that the NPs growth kinetics is consistent with an Oswald’s ripening process.
Research center :
CRPM - Physique des matériaux
Disciplines :
Physics
Author, co-author :
Kfoury, Patrick
Battie, Yann;  UL - Université de Lorraine [FR] > LCP-A2MC
En Naciri, Aotmane;  UL - Université de Lorraine [FR] > LCP-A2MC
Broch, Laurent;  UL - Université de Lorraine [FR] > LCP-A2MC
Voué, Michel ;  Université de Mons - UMONS > Faculté des Sciences > Service de Physique des matériaux et Optique
Chaoui, Nouari;  UL - Université de Lorraine [FR] > LCP-A2MC
Language :
English
Title :
Realtime spectroscopic ellipsometry of plasmonic Nanoparticles growth in PolyVinyl Alcohol thin films.
Publication date :
26 January 2024
Journal title :
Journal of Nanoparticle Research
ISSN :
1388-0764
eISSN :
1572-896X
Publisher :
Kluwer Academic Publishers, Netherlands
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
S878 - Physique des matériaux et Optique
Research institute :
R400 - Institut de Recherche en Science et Ingénierie des Matériaux
Available on ORBi UMONS :
since 08 June 2023

Statistics


Number of views
18 (1 by UMONS)
Number of downloads
0 (0 by UMONS)

Scopus citations®
 
0
Scopus citations®
without self-citations
0

Bibliography


Similar publications



Contact ORBi UMONS