Enhanced light trapping with optical nanoantennas for thin-film solar cells

Constantin R. Simovski, Dmitry K. Morits, Pavel M. Voroshilov*, Michael E. Guzhva, Pavel A. Belov, Yuri S. Kivshar

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

We propose a new type of efficient light-trapping structures for thin-film solar cells based on arrays of planar nanoantennas whose operational band doesn't match with plasmonic resonances. The operation of our light-harvesting structures is based on the excitation of collective modes of the nanoantenna arrays whose electric field is localized between the adjacent metal elements. We demonstrate theoretically a substantial enhancement of the short-circuit photocurrent for the cases when the photovoltaic layer is as thin as 100-150 nm. We compare our novel light-trapping structures with conventional anti-reflecting coatings. Our approach provides a general background for a design of different types of efficient broadband light-trapping structures for thin-film solar cells technologically compatible with large-area fabrication techniques.

Original languageEnglish
Title of host publication2013 7th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2013
Pages49-51
Number of pages3
DOIs
Publication statusPublished - 2013
MoE publication typeA4 Article in a conference publication
EventInternational Congress on Advanced Electromagnetic Materials in Microwaves and Optics - Bordeaux, France
Duration: 16 Sep 201319 Sep 2013
Conference number: 7

Conference

ConferenceInternational Congress on Advanced Electromagnetic Materials in Microwaves and Optics
Abbreviated titleMETAMATERIALS
CountryFrance
CityBordeaux
Period16/09/201319/09/2013

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