The impact of parasitic loss on solar cells with plasmonic nano-textured rear reflectors

Claire E. R. Disney, Supriya Pillai, Martin A. Green

Research output: Contribution to journalArticle

18 Citations (Scopus)
4 Downloads (Pure)

Abstract

Significant photocurrent enhancement has been demonstrated using plasmonic light-trapping structures comprising nanostructured metallic features at the rear of the cell. These structures have conversely been identified as suffering heightened parasitic absorption into the metal at certain resonant wavelengths severely mitigating benefits of light trapping. In this study, we undertook simulations exploring the relationship between enhanced absorption into the solar cell, and parasitic losses in the metal. These simulations reveal that resonant wavelengths associated with high parasitic losses in the metal could also be associated with high absorption enhancement in the solar cell. We identify mechanisms linking these parasitic losses and absorption enhancements, but found that by ensuring correct design, the light trapping structures will have a positive impact on the overall solar cell performance. Our results clearly show that the large angle scattering provided by the plasmonic nanostructures is the reason for the enhanced absorption observed in the solar cells.

Original languageEnglish
Article number12826
Pages (from-to)1-10
Number of pages10
JournalScientific Reports
Volume7
DOIs
Publication statusPublished - 9 Oct 2017
Externally publishedYes

Bibliographical note

Copyright the Author(s) 2017. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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