Positional disorder in nanowire array photovoltaics

Bjorn 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 contribution

Abstract

Nanowire arrays are the focus of considerable research for incorporation into next generation solar cells. For these structures to be economically viable they must be designed to achieve high efficiencies in the presence of fabrication variations. Here we report on a systematic study of arrays of clustered nanowires, which reveals how the underlying physics of absorption enhancement in nanowire arrays is altered by the introduction of positional disorder. We find that positional disorder in fact enhances absorption efficiency over the majority of the parameter space due to the formation of additional modes in the structure and subsequently broadened absorption peaks.
Original languageEnglish
Title of host publicationPVSC 2013
Subtitle of host publicationIEEE 39th Photovoltaic Specialists Conference : Proceedings
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages322-325
Number of pages4
ISBN (Print)9781479932993
DOIs
Publication statusPublished - 2013
Externally publishedYes
EventIEEE Photovoltaic Specialists Conference (39th : 2013) - Tampa, FL
Duration: 16 Jun 201321 Jun 2013

Conference

ConferenceIEEE Photovoltaic Specialists Conference (39th : 2013)
CityTampa, FL
Period16/06/1321/06/13

Keywords

  • silicon
  • photovoltaic cells
  • nanophotonics
  • nanostructures
  • nanowires

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