Production and qualification status of GaAs/Ge top/bottom contact solar cells

The status of top/bottom contact GaAs/Ge solar cell production is described. Over 3000 equivalent 2 cm*4 cm cells have been processed on the manufacturing line. The majority have been 2 cm*4 cm at 7.5 mils thick, but 4 cm*4 cm and 6 cm*6 cm cells have also been produced in thicknesses down to 3.5 mils. Flight program results are presented for UoSAT-F, and the current status of cells and panels built for the SAMPEX and PASP Plus programs is discussed.<
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