Experiment information: White light laser, 630nm, 1.22MHz Sample: Cs(0.1)FA(0.9)PbI3 Information regarding variable temperature photoluminescence (PL) measurements: .csv files containing raw data (wavelength vs intensity in counts per second) 10x1 referrs to measurement averaged over 10 1 second exposures file number - temperaure 1 - 293K 2 - 290K 3 - 275K 4 - 250K 5 - 225K 6 - 200K 7 - 175K 8 - 150K 9 - 140K 10 - 130K 11 - 120K 12 - 110K 13 - 100K 14 - 75K 15 - 50K 16 - 25K Information regarding variable temperature time resolved PL measurements: .DAT file containing raw data (intensity in counts per second) Binned into 0.025ns collumn - temperature 0 - 290K 1 - 275K 2 - 200K 3 - 150K 4 - 120K 5 - 100K 6 - 50K