V.А. Vasilyev, B.V. Tarnizhevskiy, ОJSC “ENIN”
Further increase in efficiency of PEC and power installations on their basis is connected with development and application of multitransition (cascade) SEs. Such elements have the extended range of spectral sensitivity in comparison with single-transition ones.
Recently this direction is especially intensively developed. Since 1996 two-cascade PECs on the basis of InGaP/GaAs are produced in the industrial scale. They were successfully applied in space. Industrial production of three-cascade PECs started in 1999 on the basis of InGaP/GaAs/Ge.