Photovoltaic nanocrystal scintillators hybridized on Si solar cells for enhanced conversion efficiency in UV


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Mutlugun E. , Soganci I. M. , Demir H. V.

OPTICS EXPRESS, vol.16, no.6, pp.3537-3545, 2008 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 16 Issue: 6
  • Publication Date: 2008
  • Doi Number: 10.1364/oe.16.003537
  • Title of Journal : OPTICS EXPRESS
  • Page Numbers: pp.3537-3545

Abstract

We propose and demonstrate semiconductor nanocrystal based photovoltaic scintillators integrated on solar cells to enhance photovoltaic device parameters including spectral responsivity, open circuit voltage, short circuit current, fill factor, and solar conversion efficiency in the ultraviolet. Hybridizing (CdSe) ZnS core-shell quantum dots of 2.4 nm in diameter on multi-crystalline Si solar cells for the first time, we show that the solar conversion efficiency is enhanced 2 folds under white light illumination similar to the solar spectrum. Such nanocrystal scintillators provide the ability to extend the photovoltaic activity towards UV. (c) 2008 Optical Society of America.