FDTD modeling of solar energy absorption in silicon branched nanowires

Christin Lundgren, Rene Lopez, Joan Redwing, Kathleen Melde

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


Thin film nanostructured photovoltaic cells are increasing in efficiency and decreasing the cost of solar energy. FDTD modeling of branched nanowire ‘forests’ are shown to have improved optical absorption in the visible and near-IR spectra over nanowire arrays alone, with a factor of 5 enhancement available at 1000 nm. Alternate BNW tree configurations are presented, achieving a maximum absorption of over 95% at 500 nm.

Original languageEnglish (US)
Pages (from-to)A392-A400
JournalOptics Express
Issue number103
StatePublished - May 6 2013

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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