Science Advances

Supplementary Materials

The PDF file includes:

  • Section S1. Structural characterization
  • Section S2. Optical characterization
  • Section S3. Ferroelectricity and pyroelectricity
  • Section S4. Photoferroelectricity
  • Section S5. Chirality
  • Fig. S1. NMR result of R-CYHEA.
  • Fig. S2. FTIR result of R-CYHEAI.
  • Fig. S3. Raman results of R-CYHEAPbI3 on KCl.
  • Fig. S4. Powder XRD result of R-CYHEAPbI3.
  • Fig. S5. Powder XRD result of S-CYHEAPbI3.
  • Fig. S6. XRD result of R-CYHEAPbI3 grown on Si.
  • Fig. S7. XRD result of R-CYHEAPbI3 grown on mica.
  • Fig. S8. XRD result of R-CYHEAPbI3 grown on NaCl.
  • Fig. S9. Rietveld modeling (red curve) of room temperature powder x-ray data (black crosses) and corresponding difference curve (blue) for powdered R-CYEHAPbI3.
  • Fig. S10. Single-crystal XRD results of R-CYEHAPbI3.
  • Fig. S11. Diffraction analysis.
  • Fig. S12. Single-crystal synchrotron XRD results.
  • Fig. S13. Analysis of synchtrotron diffraction result.
  • Fig. S14. Peak intensities have changed after temperature increases from 0° to 175°C.
  • Fig. S15. EBSD of single-crystal sample.
  • Fig. S16. Schematic drawing of the system that we used to measure the volume of the crystal in density determination.
  • Fig. S17. Theoretical electronic band structure and polarization.
  • Fig. S18. PL of R-CYEHAPbI3.
  • Fig. S19. Transmission spectrum of S-CYEHAPbI3.
  • Fig. S20. Absorption spectrum of S-CYEHAPbI3.
  • Fig. S21. Photoresponse of R-CYEHAPbI3 on FTO under 405-nm laser.
  • Fig. S22. Photoresponse of R-CYEHAPbI3 on FTO under 635-nm laser.
  • Fig. S23. SHG spectrum of R-CYEHAPbI3.
  • Fig. S24. Comparison of Sawyer-Tower method and double wave method used in PE loop measurements.
  • Fig. S25. Our single-crystal device.
  • Fig. S26. Orientation dependent of I-V curves of R-CYEHAPbI3.
  • Fig. S27. Pyroelectric results.
  • Fig. S28. Polarization retention and fatigue endurance.
  • Fig. S29. Photoferroelectric measurements.
  • Fig. S30. Voltage-dependent photoresponse.
  • Fig. S31. Comparison of the CD signals of chiral perovskites and chiral precursors.
  • Fig. S32. Schematic drawing of the generation of ellipticity from different absorption to LCP and RCP.
  • Table S1. Crystallographic and refinement parameters for R-CYEHAPbI3.
  • Table S2. Fractional coordinates and isotropic displacement parameters.
  • Table S3. Bond lengths and angles.

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Other Supplementary Material for this manuscript includes the following:

  • Movie S1 (.avi format). Laue diffraction patterns versus temperature.
  • Movie S2 (.avi format). Zoom-in of Laue diffraction patterns versus temperature.

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