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  • Optics and Photonics News
  • Vol. 27,
  • Issue 12,
  • pp. 43-43
  • (2016)

Efficient Photovoltaics from Photoluminescent Heat Harvesting

Assaf Manor, Nimrod Kruger, Tamilsaran Sabaphati, and Carmel Rotschild

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Abstract

Optical cooling of solids exploits the ability to draw heat through photoluminescence (PL), with the laser source inducing blue-shifted PL. This efficient optical heat pump, however, has never been used to boost power conversion, as in solar energy systems. We have recently shown that a similar thermal-up-conversion process takes place when a PL material is both photonically and thermally excited, and have demonstrated a photovoltaic solar-energy converter based on this thermally enhanced PL effect.

© 2016 Optical Society of America

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