Method and system for converting solar energy into electrical energy
utilizing serially coupled multijunction-type photovoltaic cells in
conjunction with a form of spectral cooling. The latter cooling is
carried out by removing ineffective solar energy components from
impinging concentrated light, inter alia, through the utilization of
dichroics or the conversion of ineffective solar energy components to
effective energy components by means of luminescence, phosphorescence, or
fluorescence. Ineffective solar energy components are described as those
exhibiting wavelengths outside the bandgap energy defined wavelength and
an associated wavelength defined band of useful photon energy.