Monolithic tandem solar cell

Batteries: thermoelectric and photoelectric – Photoelectric – Panel or array

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437 5, H01L 31068, H01L 3118

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active

050191772

ABSTRACT:
A single-crystal, monolithic, tandem, photovoltaic solar cell is described which includes (a) an InP substrate having upper and lower surfaces, (b) a first photoactive subcell on the upper surface of the InP substrate, and (c) a second photoactive subcell on the first subcell. The first photoactive subcell is GaInAsP of defined composition. The second subcell is InP. The two subcells are lattice matched. The solar cell can be provided as a two-terminal device or a three-terminal device.

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Yamaguchi et al. Minority-carrier Injection Annealing of Electron Irradiation-induced Defects in InP Solar Cells, Appl. Phys. Lett., 44, p. 432 (1984).

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