| has gloss | eng: Fill factor in the context of solar cell technology is defined as the ratio (given as percent) of the actual maximum obtainable power, (Vmp x Jmp) to the theoretical (not actually obtainable) power, (Jsc x Voc). This is a key parameter in evaluating the performance of solar cells. Typical commercial solar cells have a fill factor > 0.70. Grade B cells, have a fill factor usually between 0.4 to 0.7. # The fill factor (FF), is thus defined as (VmpJmp)/(VocJsc), where Jmp and Vmp represent the current density and voltage at the maximum power point, this point being obtained by varying the resistance in the circuit until J x V is at its greatest value. |
