Photovoltaic nanocrystal scintillators hybridized on Si solar cells for enhanced conversion efficiency in UV.
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.
Department of Physics, Nanotechnology Research Center, Institute of Materials Science and Nanotechnology, Bilkent University, Bilkent, Ankara, Turkey 06800.
Evren
E
Mutlugun
Ibrahim Murat
IM
Soganci
Hilmi Volkan
HV
Demir
D011211:Electric Power Supplies; D004867:Equipment Design; D019544:Equipment Failure Analysis; D045663:Quantum Dots; D012588:Scintillation Counting / Q000295:instrumentation* / Q000379:methods; D012993:Solar Energy; D014466:Ultraviolet Rays