Title :

Determination of Photothermal and EMI Shielding Efficiency of Graphene–Silver Nanoparticle Composites Prepared under Low-Dose Gamma Irradiation

Author(s) :

Stefanović, Andjela [Auteur]
University of Belgrade [Belgrade]
Kepić, Dejan [Auteur]
University of Belgrade [Belgrade]
Momčilović, Miloš [Auteur]
University of Belgrade [Belgrade]
Mead, James [Auteur]
Huskić, Miroslav [Auteur]
Haddadi, Kamel [Auteur]
Circuits Systèmes Applications des Micro-ondes - IEMN [CSAM - IEMN ]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Sebbache, Mohamed [Auteur]
Circuits Systèmes Applications des Micro-ondes - IEMN [CSAM - IEMN ]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Faculty of Polymer Technology
University of Belgrade [Belgrade]
Todorović Marković, Biljana [Auteur]
University of Belgrade [Belgrade]
Jovanović, Svetlana [Auteur]
University of Belgrade [Belgrade]

Journal title :

NANOMATERIALS

Publisher :

MDPI

Publication date :

2024-05-23

ISSN :

2079-4991

English keyword(s) :

silver nanoparticles gamma irradiation graphene oxide electrochemically exfoliated graphene photothermal efficiency EMI shielding
silver nanoparticles
gamma irradiation
graphene oxide
electrochemically exfoliated graphene
photothermal efficiency
EMI shielding

HAL domain(s) :

Physique [physics]
Sciences de l'ingénieur [physics]

English abstract : [en]

<div><p>Silver nanoparticles (Ag NPs) have been produced by low-dose (1-20 kGy) gamma irradiation of silver nitrate in the presence of graphene-based material (graphene oxide or electrochemically exfoliated graphene). The ...
Show more ><div><p>Silver nanoparticles (Ag NPs) have been produced by low-dose (1-20 kGy) gamma irradiation of silver nitrate in the presence of graphene-based material (graphene oxide or electrochemically exfoliated graphene). The large surface area of those graphene-based materials combined with the presence of oxygen-containing functional groups on the surface provided successful nucleation and growth of Ag nanoparticles, which resulted in a uniformly covered graphene surface. The obtained Ag nanoparticles were spherical with a predominant size distribution of 10-50 nm for graphene oxide and 10-100 nm for electrochemically exfoliated graphene. The photothermal efficiency measurement showed a temperature increase upon exposure to a 532 nm laser for all samples and the highest photothermal efficiency was measured for the graphene oxide/Ag NP sample prepared at 5 kGy. Electromagnetic interference (EMI) shielding efficiency measurements showed poor shielding for the composites prepared with graphene oxide. On the other hand, all composites prepared with electrochemically exfoliated graphene showed EMI shielding to some extent, and the best performance was measured for the samples prepared at 5 and 20 kGy doses.</p></div>Show less >

Language :

Anglais

Popular science :

Non

European Project :

TWINNING FOR NEW GRAPHENE-BASED COMPOSITES IN ELECTROMAGNETIC INTERFERENCE SHIELDING

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL

Submission date :

2024-10-29T03:18:44Z