Fig. 2: Time-resolved photoluminescence (TRPL) characterization.
From: Non-monotonic size-dependent exciton radiative lifetime in CsPbBr3 nanocrystals
Three selected nanocrystals sizes in strong, intermediate, and strong quantum confinement regimes are assessed using TRPL. Decays are deconvoluted with instrument response function (IRF) and the initial two decades are fitted to a monoexponential function to extract the total lifetime (inset). Absolute photoluminescence quantum yield (PLQY) was measured to calculate the radiative rates for each nanocrystals. The resulting data, including bandgap (Eg), PLQY, total lifetime, and radiative rate, are tabulated, revealing a non-monotonic trend that emerges in lifetimes and radiative rates.
