https://doi.org/10.1051/epjap/2013120531
Influence of substrate on the optical properties of non-aggregated silver nanoparticles
1
V.E. Lashkarev Institute of Semiconductor Physics NAS of Ukraine, 41 Nauky Ave., Kyiv 03028, Ukraine
2
National University “Lviv Polytechnic”, 12 S. Bandery St., Lviv 79013, Ukraine
a e-mail: s.malynych@gmail.com
Received:
4
December
2012
Revised:
2
July
2013
Accepted:
15
October
2013
Published online:
15
November
2013
In this paper, experimental results on the influence of the substrates of different refractive index on the optical properties of two-dimensional silver nanoparticle array are presented. It is shown that plasmon mode that arises from cooperative interactions between closely spaced nanoparticles exhibit different dependences on the incident angle of light. Those dependencies can be qualitatively explained by the concept of mirror images induced in a substrate. Semiconductor (ITO) substrate possesses higher refractive index which even more affects the optical response of silver nanoparticle array.
© EDP Sciences, 2013
