Growth Kinetics and Optical Properties of CsPbBr3 Perovskite Nanocrystals

We synthesized CsPbBr3 perovskite nanocrystals (NCs) at different reaction temperatures and tracked their growth kinetics on the basis of optical properties estimated size. The energies absorption fluorescence (FL) peaks with increasing temperature for NCs were tuned within regions 2.429–2.570 eV 2.391–2.469 eV, respectively, depending size (9.9–12.5 nm). Stokes shifts NC decreased from 101 meV to 38 meV. full-width half-maximum FL CdSe 150 90 because improved uniformity NCs. energy spacing various was calculated Tauc plots; this information is critical determining bandgap enables be using effective mass approximation.