Polydimethylsiloxane containing gold nanoparticles for optical applications

0524206 - ÚJF 2021 RIV GB eng J - Journal Article
Cutroneo, Mariapompea - Torrisi, Alfio - Ryukhtin, Vasil - Dopita, M. - Silipigni, L. - Macková, Anna - Malinský, Petr - Slepička, P. - Torrisi, L.
Polydimethylsiloxane containing gold nanoparticles for optical applications.
Journal of Instrumentation. Roč. 15, č. 3 (2020), č. článku C03044. ISSN 1748-0221. E-ISSN 1748-0221.
[Conference on Plasma Physics by Laser and Applications (PPLA). Pisa, 29.10.2019-31.10.2019]
R&D Projects: GA ČR GA19-02482S; GA MŠMT LM2015056; GA MŠMT EF16_013/0001812
Institutional support: RVO:61389005
Keywords : manufacturing * lasers
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 1.415, year: 2020
Method of publishing: Limited access
https://doi.org/10.1088/1748-0221/15/03/C03044

A hybrid material incorporating gold nanoparticles (Au-NPs) in polydimethylsiloxane (PDMS) has been synthesized. Gold nanoparticles gained wide interest for their optical, chemical and physical properties, such as surface plasmon oscillations resonant absorption, chemical structure, imaging and sensing. Au-NPs can be conjugated with several functionalizing agents, such as polymeric chains, improving their properties and performances. PDMS composites with weight percentages ranging between 0.1 and 0.2% of spherical Au-NPs (10 nm diameter), were produced. In this work, we report on different dispersion effects of gold nanoparticles in PDMS. The surface morphology was investigated by atomic force microscopy (AFM) and wetting ability analyses. The presence of structures inside both virgin and hybrid PDMS containing Au-NPs was preliminary investigated by Small Angle X-ray Scattering (SAXS). The optical performance of such hybrid material was studied by UV-VIS spectroscopy, in transmission mode. An enhancement of the absorption was reported as a function of increasing percentage of gold nanoparticles and changing the nanoparticles dispersion approach. The presented hybrid material could be promising for many useful applications, such as optical waveguides, sensors and switches in optoelectronics.
Permanent Link: http://hdl.handle.net/11104/0308586