Light-confining cavities for photovoltaic applications based on the angular-spatial limitation of the escaping beam.
Integrating spheres are proposed as light-confining cavities for enhancing the absorption of light by devices such as solar cells, and also for making photovoltaic converters with cells of several band gaps. A new concept for achieving this light confinement by angular restriction of the escaping of rays, which avoids the requirement of having a small entry aperture and therefore concentrations on it that are much higher than those required on the solar cells, is proposed here.
Miñano
J C
JC
Luque
A
A
Tobías
I
I