ABSTRACT
Recombination Losses .....................................................................300 7.2 Photovoltaic Cells and Arrays Based on AlGaAs-GaAs and
AlGaP-GaP Heterostructures ......................................................................304 7.2.1 Properties of AlGaAs-GaAs Heterojunctions .................................305 7.2.2 AlGaAs-GaAs Heterostructures for Photovoltaic Cells .................308 7.2.3 Fabrication of AlGaAs-GaAs Photovoltaic Cells ...........................309 7.2.4 Spectral Characteristics and Photocurrent of AlGaAs-GaAs
Photovoltaic Cells ............................................................................312 7.2.5 Current-Voltage Characteristics of AlGaAs-GaAs
Photovoltaic Cells ............................................................................314 7.2.6 Temperature Dependencies of AlGaAs-GaAs PV
Cell Parameters ................................................................................317 7.2.7 Photovoltaic AlGaAs Arrays for Radioluminescent Lighting.........321 7.2.8 Batteries Based on Tritium Lamps and Photovoltaic
AlGaAs Arrays.................................................................................327 7.2.9 Photovoltaic Cells Based on AlGaP-GaP for Blue
Phosphor Lighting............................................................................332 7.3 Betavoltaic Cells Based on AlGaAs-GaAs and GaP .................................334
