Figure 4: Photovoltaic characteristics of glass/130 nm ITO/50 nm PEDT:PSSH/P3HT:PCBM/Ca solar cells under an equivalent solar irradiation of 1.2 sun. | Nature Communications

Figure 4: Photovoltaic characteristics of glass/130 nm ITO/50 nm PEDT:PSSH/P3HT:PCBM/Ca solar cells under an equivalent solar irradiation of 1.2 sun.

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

Figure 4

(a) Current–voltage characteristics of an optimized demixed biblend device and a crosslinked polymer network: fullerene device: d=85 nm; dPCBM/dP3HT=0.56. (b) Power conversion efficiency landscape, PCE versus (dP3HT, dPCBM), where di is the effective component thickness. Cell efficiencies are given by colour-coded symbols. Those of demixed biblend cells have a red border. Precision is ±0.15% (absolute). Data are spectral-mismatch corrected. The network cell data are interpolated using a two-dimensional, multi-Gaussian surface (goodness-of-fit, χ2≈1.5). The biblend data fall below this surface by 20 (±10) %. The 1:1 w/w P3HT:PCBM ratio is given by the line dPCBM=0.65 *dP3HT. Other composition lines are as indicated.

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