Batteries: thermoelectric and photoelectric – Photoelectric – Cells
Patent
1984-09-12
1986-04-22
Weisstuch, Aaron
Batteries: thermoelectric and photoelectric
Photoelectric
Cells
136262, 427157, H01L 3104
Patent
active
045844283
ABSTRACT:
Disclosed herein is a solar converter structure and fabrication process therefor which includes a composite zinc selenide fluorescent wavelength shifter (FWS) prepared with anti-reflective (AR) coatings on both major surfaces thereof. One of these AR coatings is adhesively bonded to an AR coating on the sunlight-receiving surface of a gallium arsenide or an aluminum gallium arsenide photovoltaic (PV) solar cell, and the "free-standing" FWS composite wavelength shifter protects the solar cell from proton and ultraviolet radiation damage. The ZnSe wavelength shifter has a spectral response below about 0.47 micrometers and the solar cell has a spectral response above about 0.47 micrometers. The wavelength shifter absorbs radiation in the 0.3 to 0.47 micrometer range and re-emits radiation to the solar cell in a band centered about 0.62 micrometers and well within the pn junction response spectra for the solar cell to thereby enhance its power output.
REFERENCES:
patent: 4096387 (1978-06-01), Buckley
patent: 4293732 (1981-10-01), Rancourt et al.
D. Walsh et al, "ZnSe Solar Spectrum Converter for GaAs Solar Cells", Conf. Record, 14th IEEE Photovoltaic Specialists Conf. (1980), pp. 476-477.
Bethurum W. J.
Float K. W.
Hughes Aircraft Company
Weisstuch Aaron
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