Disorder in silicon nanowire arrays for photovoltaic applications

Björn C P Sturmberg, Kokou B. Dossou, Lindsay C. Botten, Ara A. Asatryan, Christopher G. Poulton, Ross C. McPhedran, C. Martijn de Sterke

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


We study the effect of non-uniform radii on the optical absorption of silicon nanowire arrays. Whilst previous studies have shown that radius disorder can increase the efficiency, the mechanism is unclear. To elucidate this we study structures with a small supercell, forming a regular nanowire array with two distinct radii. We find that these arrays have new electromagnetic resonances, not present in arrays with uniform radii, leading to increased absorption.

Original languageEnglish
Title of host publicationFrontiers in Optics, FIO 2012
Place of PublicationWashington DC
PublisherOptical Society of America (OSA)
Number of pages2
ISBN (Print)9781557529565
Publication statusPublished - 2012
Externally publishedYes
EventFrontiers in Optics, FIO 2012 - Rochester, NY, United States
Duration: 14 Oct 201218 Oct 2012


OtherFrontiers in Optics, FIO 2012
Country/TerritoryUnited States
CityRochester, NY


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