Investigation of antimonide-based semiconductors for high-efficiency multi-junction solar cells

This paper reports on the investigation of Al
_x
Ga
_1-x
As
_y
Sb
_1-y
alloys lattice-matched to GaSb for multi-junction solar cell applications. Optical and electrical characterizations of Al
_x
Ga
_1-x
As
_y
Sb
_1-y
alloys are carried out to provide accurate material parameters for simulations. Simulations are then performed with these experimental data to propose an optimized and promising structure for Al
_x
Ga
_1-x
As
_y
Sb
_1-y
subcells.