Quantification of Power Losses of the Interdigitated Metallization of Crystalline Silicon Thin-Film Solar Cells on Glass
Figure 5
Total fractional (simulated) power loss for an optimized interdigitated thin-film solar cell on glass, as a function of emitter finger width. A cell area of 4 cm2, maximum power point current density of 25 mA/cm2, an open-circuit voltage of 400 mV, and an emitter layer sheet resistivity of 400 Ω/□ have been assumed for this example. Shaded overlays of the approximate emitter widths possible with lithography (~5 μm–30 μm) and a screen-printed (~70 μm–110 μm) regime are also included.
