Abstract
Abstract Silver nanoparticles near other silver nanoparticles or near a substrate have modified plasmonic resonances which maybe important in device applications. Having plasmonic solar cell applications in mind, various aspect of silver nanoparticles on transparent conducting oxide (TCO) thin film structures are investigated. The shift in resonance has been calculated for the different shape, size and, distance of silver particles on various refractive index of the TCO. The effect of inter nanoparticle effects are discussed as well. The plasmonic resonance curve may change in case of inhomogeneity in silver nanoparticles geometry as well as proximity to each other. PACS numbers: 72.20.Dp, 72.20.Pa, 73.21.Hb, 73.23.Ad, 73.63.Nm
Highlights
PACS numbers: 72.20.Dp, 72.20.Pa, 73.21.Hb, 73.23.Ad, 73.63.Nm. İn device application, such as in plasmonic solar cells, it is common to utilize silver as an agent to interact with the long wavelength part of the sun spectrum which can be archived through plasmonic resonance [1]
We solve full three dimensional (3D) time dependent electromagnetic equation using finite difference time domain method (FDTD) [9] in order to look at various configuration of metallic nanoparticles with respect to transparent conducting oxide (TCO) film
When silver nanoparticles approach to the TCO film their plasmonic behavior changes as a function of their distance from the substrate as expected
Summary
İn device application, such as in plasmonic solar cells, it is common to utilize silver as an agent to interact with the long wavelength part (near infrared) of the sun spectrum which can be archived through plasmonic resonance [1].There is no unique plasmonic response of nanoparticles, on the contrary, a plethora of ways to manipulate them. We use boundary element method BEM solver [13] for the effect of size and shape averaging and interaction among Ag nanoparticles which should be taken into account in explaining experimental result.
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