Photovoltaic nanocrystal scintillators hybridized on Si solar cells for enhanced conversion efficiency in UV
Date
2008
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Source Title
Optics Express
Print ISSN
10944087
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Publisher
Optical Society of American (OSA)
Volume
16
Issue
6
Pages
3537 - 3545
Language
English
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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. © 2008 Optical Society of America.
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Keywords
Conversion efficiency , Integrated circuit testing , Nanocrystalline materials , Photovoltaic effects , Semiconductor devices , Silicon solar cells , Ultraviolet radiation , Hybridization , Photovoltaic activity , Photovoltaic scintillators , Spectral responsivity , Phosphors , quantum dot , article , equipment , equipment design , instrumentation , methodology , power supply , scintillation counting , solar energy , ultraviolet radiation , Electric Power Supplies , Equipment Design , Equipment Failure Analysis , Quantum Dots , Scintillation Counting , Solar Energy , Ultraviolet Rays