CHIRPED DISTRIBUTED BRAGG REFLECTORS FOR PHOTOVOLTAIC CELLS AND OTHER LIGHT ABSORPTION DEVICES

CHIRPED DISTRIBUTED BRAGG REFLECTORS FOR PHOTOVOLTAIC CELLS AND OTHER LIGHT ABSORPTION DEVICES

Semiconductor light absorption devices such as multi junction photovoltaic cells include a chirped distributed Bragg reflector beneath a junction. The chirped distributed Bragg reflector provides a high reflectivity over a broad range of wavelengths and has improved angular tolerance so as to provid...

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Bibliographische Detailangaben
Hauptverfasser: MAROS, AYMERIC, DOWD, PHILIP, SUAREZ, FERRAN, DING, DING, BILIR, DAVID TANER
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Zusammenfassung:Semiconductor light absorption devices such as multi junction photovoltaic cells include a chirped distributed Bragg reflector beneath a junction. The chirped distributed Bragg reflector provides a high reflectivity over a broad range of wavelengths and has improved angular tolerance so as to provide increased absorption within an overlying junction over a broader range of wavelengths and incident angles.