image030 Подпись: (4)

The maximum power delivered to the load is a function of VOC as well as the other resistances in the cell. The composite resistance of the cell is measured by determining at what value Rmax of RL maximum power trans­fer occurs. Since we can model our cells as a voltage source with source voltage VOC « nRq, the maximum power available is expected to be Pmax

and indeed the maximum power appears to follow this behavior approxi­mately (figure 5b).

In summary, both Pmax and VOC behave according to our model that describes the role of film’s resistive properties on cell performance.

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