A tapered dielectric waveguide solar concentrator for a compound semiconductor photovoltaic cell

Minkyu Park, Kyunghwan Oh, Jeong Kim, Hyun Woo Shin, Byung Du Oh

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8 Citations (Scopus)


A novel tapered dielectric waveguide solar concentrator is proposed for compound semiconductor solar cells utilizing optical fiber preform. Its light collecting capability is numerically simulated and experimentally demonstrated for feasibility and potential assessments. Utilizing tapered shape of an optical fiber preform with a step-index profile, low loss guidance was enhanced and the limitation in the acceptance angle of solar radiation was alleviated by an order of magnitude. Using a solar simulator the device performances were experimentally investigated and discussed in terms of the photocurrent improvements. Total acceptance angle exceeding ± 6° was experimentally achieved sustaining a high solar flux.

Original languageEnglish
Pages (from-to)1777-1787
Number of pages11
JournalOptics Express
Issue number2
Publication statusPublished - 2010 Jan 18


All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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