Tandem solar cell

Details Tandem solar cell Tandem solar cell

1989-11-08

1991-04-23

Weisstuch, Aaron

Batteries: thermoelectric and photoelectric

Photoelectric

Panel or array

357 30, H01L 31068

Patent

active

050097199

ABSTRACT:
A tandem solar cell device includes an upper solar cell, a lower solar cell, and an intervening buffer layer. A short wavelength region of the incident light is absorbed by the upper solar cell while the light having passed through the upper solar cell is absorbed by the lower solar cell. The buffer layer is a semiconductor layer having a larger band gap energy than the upper solar cell, a crystalline lattice match with the upper solar cell, and a tunnel junction.

REFERENCES:
patent: 4575577 (1986-03-01), Fraas
patent: 4631352 (1986-12-01), Daud et al.
patent: 4680422 (1987-07-01), Stanbery
patent: 4681982 (1987-07-01), Yoshida
patent: 4867801 (1989-09-01), Stanbery
L. M. Fraas et al., Conference Record, 16th IEEE Photovoltaic Specialists Conference (1982), pp. 655-662.
S. M. Vernon et al., Conference Record, 17th IEEE Photovoltaic Specialists Conference (1984), pp. 434-439.
H. C. Hamaker, Conference Record, 18th IEEE Photovoltaic Specialists Conference (1985), pp. 140-145.
"High Efficiency AlGaAs/GaAs Tandem Solar Cells Grown by Molecular Beam", Int'l PVSEC-3, pp. 772-774.

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