Browsing by Keywords "Conversion efficiency"
Now showing items 1-7 of 7
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Broadband circular polarizer based on high-contrast gratings
(Optical Society of America, 2012-05-30)A circular polarizer, which is composed of periodic and two-dimensional dielectric high-contrast gratings, is designed theoretically such that a unity conversion efficiency is achieved at λ0 = 1.55 μm. The operation is ... -
Broadband quarter-wave plates at near-infrared using high-contrast gratings
(2013)In this paper, we report the theoretical and experimental possibility of achieving a quarter-wave plate regime by using high-contrast gratings, which are binary, vertical, periodic, near-wavelength, and two-dimensional ... -
Design and characterization of Bodipy derivatives for bulk heterojunction solar cells
(Elsevier, 2014)Two electron rich Bodipy dyes with strong absorptivities in the visible region were designed and synthesized as potential electron donors in bulk heterojunction photovoltaic constructs. Overall efficiency is above 1%, with ... -
Phonon-assisted nonradiative energy transfer from colloidal quantum dots to monocrystalline bulk silicon
(IEEE, 2012)Silicon is one of the most dominant materials in photovoltaics. To increase optical absorption of silicon solar cells, colloidal quantum dots (QDs) have been proposed as a good sensitizer candidate owing to their favorably ... -
Photovoltaic nanocrystal scintillators hybridized on Si solar cells for enhanced conversion efficiency in UV
(Optical Society of American (OSA), 2008)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 ... -
Theoretical limits of the multistacked 1-D and 2-D microstructured inorganic solar cells
(SPIE, 2015)Recent studies in monocrystalline semiconductor solar cells are focused on mechanically stacking multiple cells from different materials to increase the power conversion efficiency. Although, the results show promising ... -
Wavelength dependent color conversion of CdSe/ZnS core/shell nanocrystals for white LEDs
(2009)Nanocrystals (NCs) provide narrow emission spectrum that can be conveniently tuned using quantum size effect. This ability to adjust and control emission spectrum of NCs makes them strong candidates for use in white color ...
