Science Advances

Supplementary Materials

This PDF file includes:

  • Table S1. Single crystal x-ray diffraction indexing results.
  • Fig. S1. BE-PFM raw data.
  • Fig. S2. The extracted piezoresponse.
  • Fig. S3. The piezoresponse extracted from the BE-PFM measurements averaged over a matrix of 10 by 10 points.
  • Fig. S4. The single-frequency PFM small-signal amplitude (black) and phase response (blue) for a trace and a retrace.
  • Fig. S5. Rayleigh analysis and loss for single-crystal MAPbI3 at 1 MHz.
  • Fig. S6. Optical microscope images of the surface of a MAPbI3 single crystal before poling.
  • References (44, 45)

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