Designing periodic arrays of metal nanoparticles for light-trapping applications in solar cells

Mokkapati, Sudha ORCID: https://orcid.org/0000-0003-3260-6560, Beck, F. J., Polman, A. and Catchpole, K. R. 2009. Designing periodic arrays of metal nanoparticles for light-trapping applications in solar cells. Applied Physics Letters 95 (5) , 053115. 10.1063/1.3200948

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Abstract

We present criteria for optimizing the light-trapping efficiency of periodic arrays of metal nanoparticles for Si solar cell applications. The scattering cross section of the nanoparticles and the diffraction efficiency of the grating should be maximized in the long wavelength range. The grating pitch should be chosen to allow higher order diffraction modes for long wavelengths while maintaining the highest possible fill factor. These conditions place strong constraints on the optimal parameters (particle size of ∼200 nm∼200 nm and pitch of ∼400 nm∼400 nm) for periodic arrays of metal nanoparticles, in contrast to dielectric gratings, where a relatively wide range of periods and feature sizes can be used for efficient light trapping.

Item Type:	Article
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
Publisher:	American Institute of Physics
ISSN:	0003-6951
Last Modified:	03 Nov 2022 10:29
URI:	https://orca.cardiff.ac.uk/id/eprint/108225

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