Figure 5 | Scientific Reports

Figure 5

From: High performance polymer solar cells with as-prepared zirconium acetylacetonate film as cathode buffer layer

Figure 5

(a) External quantum efficiency (EQE) spectra and (b) the reflectance spectra of the PSCs based on PBDTBDD:PC60BM with different cathode; (c) the additional absorption spectrum as well as additional EQE spectrum calculated from the difference of reflectance spectra and EQE spectra of the PSCs based on PBDTBDD:PC60BM with a-Zracac/Al and Al cathode, respectively.

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