A larger fill factor is desirable and corresponds to an I-V curve that is more square-like. Assuming the current/voltage relationship is linear (it's not, but this gives you a crude lower bound), you could measure the short-circuit current and the open-cell voltage and do 1/4 * I * V to obtain the maximum theoretical power given a worst-case 0.25 fill factor. Specify the units if any. The Ideal Voltage Source Open circuit Voltage Voc is the terminal voltage of a source when no current is drawn from the source. AU - Holman, Zachary. For good solar cell, this must be small. Theory and various types of experiments are discussed that are needed for characterization of solar cells. While it is not available on most calculators, it is available on advanced mathematical packages such as Matlab or Python. For small. Fill factor (solar cell), the ratio of maximum obtainable power to the product of the open-circuit voltage and short-circuit current Fill factor (image sensor), the ratio of light-sensitive area of a pixel to total pixel area in an image sensor In vision … The A mono-crystalline silicon solar cell of (4×4) cm 2 area was used and the experiment was undertaken employing solar cell simulator with cell temperature in the range 25-60 °C at constant light intensities 215–515 W/m 2 of simulated two quartz Halogen lamps (OSRAM 50 W, 230 V each). Figure 4 illustrates the fill factor. Efficiency (η) Efficiency is the ratio of the electrical power output P out, compared to the solar power input, P in, into the PV cell. window.jQuery || document.write('