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Proceedings Paper

Nanoscale tailored plasmonic material for optimum broadband solar harvesting
Author(s): Dominic Zerulla; Éadaoin McClean-Ilten
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Paper Abstract

Is it possible to design a dedicated nanostructure on which all surface features contribute entirely to energy harvesting within a solar cell? This is an important challenge in the light that the efficiency of the solar cell technology utilised has a direct impact on the required land-use and also on reaching grid parity. Here, we take a unique approach and present an analytically derived optimum solution to the problem: a nanoscale metal topography, capable of significantly improving the efficiency of solid state solar cells via excitation of surface plasmon polaritons (SPPs). The presented structure is designed to achieve broadband excitation of SPPs through the highest possible density of desired k-vectors at the interface. This leads to high weighted absorption enhancements (>130%) and unprecedented improvements (>30%) of solar cell external quantum efficiencies over the entire harvestable range.

Paper Details

Date Published: 17 September 2016
PDF: 9 pages
Proc. SPIE 9921, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XIV, 99211Z (17 September 2016); doi: 10.1117/12.2237869
Show Author Affiliations
Dominic Zerulla, Univ. College Dublin (Ireland)
Éadaoin McClean-Ilten, Univ. College Dublin (Ireland)

Published in SPIE Proceedings Vol. 9921:
Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XIV
Satoshi Kawata; Din Ping Tsai, Editor(s)

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