Dataset accompanying "Picosecond Quantum Transients in Halide Perovskite Nanodomain Superlattices". Containing data obtained from: transient absorption spectroscopy (TAS); hyperspectral photoluminescence (PL) imaging; scanning electron diffraction (SED); X-ray diffraction; UV-Vis spectroscopy; small angle X-ray scattering; wide angle X-ray scattering; scanning electron microscopy; and Kronig-Penney calculations.

TAS shows a 2-ps quantum transients for states above the bandgap of FAPbI3 at cryogenic temperatures (recorded on a home-built system). This is accompanied by spatially isolated emission, with a narrow linewidth of 1-5 nm as shown by hyperspectral PL microscopy (recorded by the IMA system, Photon etc.). The structural origin of these phenomena is linked to the presence of nanoscale {111}c twins which are observed in virtual bright/darkfield images and diffraction patterns formed from the SED data (recorded on a ThermoFisher Spectra 300 scanning transmission electron microscope).

Due to the volume of SED data only processed data is provided via this Apollo Repo. Access to the entire dataset can be requested via https://forms.gle/Rqcxp1ewEW7x8LtT7