A 116 mm x 47.5 mm PV module is specified by the following parameters:

(i)  Define the parameters and show them on a PV I-V/P-V curve

(ii) Determine the fill factor 

(iii) Given that the solar irradiance G = 1000 Wm-2, calculate the efficiency of the module.

An InGaAsP diode laser amplifier operates at a temperature of 300 K and has the following parameters: radiative recombination lifetime tau r = 3.0 ns; internal quantum efficiency eta i = 0.45; threshold charge earner concentration Delta eta tau = 1.15 times 10 18 cm - 3: absorption coefficient alpha = 660 cm - 1; junction thickness l = 1.8 mu m; junction area breadth w = 10 mu m| length d = 250 mu m (see diagram). Calculate the transparency current density JT. What current density would be required to give a power gain G = e lambda J= 5.0 along the length of the junction? What is the total current through the junction area under these conditions?