Periodically multilayered planar optical concentrator for photovoltaic solar cells

Manuel E. Solano, Muhammad Faryad, Peter B. Monk, Thomas E. Mallouk, Akhlesh Lakhtakia

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


A planar optical concentrator comprising a periodic multilayered isotropic dielectric material backed by a metallic surface-relief grating was theoretically examined for silicon photovoltaics. The concentrator was optimized using a differential evolution algorithm for solar-spectrum-integrated power-flux density. Further optimization was carried out for tolerance to variations in the incidence angle, spatial dimensions, and dielectric properties. The average electron-hole pair density in a silicon solar cell can be doubled, and the material costs substantially diminished by this concentrator, whose efficacy is due to the excitation of waveguide modes and multiple surface-plasmon-polariton waves in a broad spectral regime.

Original languageEnglish (US)
Article number191115
JournalApplied Physics Letters
Issue number19
StatePublished - Nov 4 2013

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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