Science Advances

Supplementary Materials

  • This PDF file includes:
    • Section S1. Carrier lifetime enhancement due to indirect bandgap.
    • Fig. S1. Ferroelectric polarization characterizations of the La-doped BFO films.
    • Fig. S2. Dielectric characterization of the La-doped BFO films.
    • Fig. S3. Topographic and PFM images of the as-grown La-doped BFO films.
    • Fig. S4. Local polarization switching of the La-doped BFO films.
    • Fig. S5. Temperature-dependent P-E loops.
    • Fig. S6. Photocurrent and dark current of the La-doped BFO films.
    • Fig. S7. Spectrum of the halogen lamp used in the photovoltaic test.
    • Fig. S8. Optical dielectric constants.
    • Fig. S9. Direct-forbidden fitting and integrated spectral weight.
    • Fig. S10. Complete fittings of the absorption spectra using Tauc’s rule.
    • Fig. S11. Universal polar instability–enhanced FPV effect.
    • Fig. S12. Evidence for polar instability in Dy-doped BFO.
    • Fig. S13. Evidence for polar instability in BiFe0.5Cr0.5O3.
    • References (5456)

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