doping level Nb (cm−3) | Maximum power (mW∙cm−2) under moderate concentration (C = 50 Suns) | Maximum power (mW∙cm−2) under normal illumination (C = 1 Sun) |
1013 | 1108.50 | 18.76 |
5 × 1013 | 958.45 | 16.02 |
1014 | 888.22 | 14.74 |
5 × 1014 | 712.83 | 11.54 |
1015 | 632.56 | 10.09 |
5 × 1015 | 438.69 | 6.69 |
1016 | 355.22 | 5.31 |
Variation rate (%) | 67.95 | 71.70 |