Figure 5: The power absorbed, fill factor and internal quantum efficiency landscapes for nanotemplated network solar cells. | Nature Communications

Figure 5: The power absorbed, fill factor and internal quantum efficiency landscapes for nanotemplated network solar cells.

From: High internal quantum efficiency in fullerene solar cells based on crosslinked polymer donor networks

Figure 5

(a) Optical model of the P3HT:PCBM solar cell to compute the power absorbed Pabs in the photoactive layer. (b) Computed composition dependence of Pabs for the experimental solar irradiance (1.2 sun). (c) Measured composition dependence of the fill factor FF. The network cell data are interpolated with a polynomial surface (goodness-of-fit, χ2≈1.4). (d) Composition dependence of the internal photon-to-electron conversion quantum efficiency ηint at zero bias. The shaded magenta region is a guide to the eye where ηint≈0.85, obtained from the modelled PCE and FF surfaces together with the computed Φph.

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