... (Alferov et al, 1975). 2 3 1 Solar Cells – New Aspects and Solutions 92GaInAsN layers grown on GaAs (001) substrates, Solar Energy Materials & Solar Cells 2003, Vol. 75, pp. 313–317. ... photovoltaics. Polymer-based solar cell materials and manufacturing techniques Solar Cells – New Aspects and Solutions 94Van der Merwe J.H (1979), Critical Reviews in Solid State and Materials Science, ... grown GaAs, and two GaAsN layers with different N content 2 4 6 8 10 12 14 10171018 0% N 0.2% N 0.5% NHall concentrations, cm -3 1000/T, K-1 Solar Cells – New Aspects and Solutions...