Research data for: Halide remixing under device operation imparts stability on mixed-cation mixed-halide perovskite solar cells

This entry contains the data required to reproduce the figures from the main text of the associated manuscript. This includes:
- GIWAXS diffractograms (calibrated, processed, and extracted to a readily-readable format) and relative extracted peak positions
- current vs time data
- current vs voltage data
- photoluminescence spectra (wavelength-dependent, and eV-dependent) and relative peak positions.