Kinetic analysis of the growth behavior of perovskite CsPbBr₃ nanocrystals in a microfluidic system

Abstract

Understanding the growth behavior of nanoparticles and semiconductor nanocrystals under dynamic environments is of profound importance in controlling the sizes and uniformity of the prepared nanoparticles and semiconductor nanocrystals. In...

High-throughput preparation of Mn2+-doped CsPbCl3 nanocrystals via a fluidic channel reaction

“…This phenomenon occurs when the size of NCs increases as the reaction time progresses, resulting in a shift of the excitonic emission peak towards longer wavelength. 29,45 The as-prepared NCs synthesized by fluidic channel reaction or hot injection were compared in subsequent experiments. TEM showed that all of the NCs were of cubic shape, and the NCs prepared by fluidic channel reaction showed a larger size (15 AE 2 nm), compared with that by hot injection (10 AE 2 nm) (Fig.…”

One-pot synthesis of CsPbBr3 nanocrystals in methyl methacrylate: a kinetic study, in situ polymerization, and backlighting applications

“…PL characteristics have been widely used for in situ monitoring and analyzing the growth of PNCs because of their size dependent bandgap/PL peak. 43–45 Fig. 2(a) and (b) show the temporal evolution of the PL peak and FWHM of the PNCs synthesized in ODE, toluene, and MMA, and the corresponding spectra are provided in Fig.…”

“…PL characteristics have been widely used for in situ monitoring and analyzing the growth of PNCs because of their size dependent bandgap/PL peak. [43][44][45] Fig. 2 precursor diffusion in the solution, causing the limited nucleation and growth rate.…”

“…In addition, ethyl acetate has polarity and viscosity close to those of MMA and produces a close emission line width and band edge absorption of the PNCs (Fig.S1c and d, ESI †).We further investigated the temporal evolution of the emission wavelength and FWHM of the PNCs prepared in ODE, toluene, and MMA at 100 1C to gain more insights into the solvent effect on the growth kinetics of the PNCs. PL characteristics have been widely used for in situ monitoring and analyzing the growth of PNCs because of their size dependent bandgap/PL peak [43][44][45]. Fig.2(a) and (b) show the temporal evolution of the PL peak and FWHM of the PNCs synthesized in ODE, toluene, and MMA, and the corresponding spectra are provided in Fig.…”

Ultra-stable blue-emitting lead-free double perovskite Cs2SnCl6nanocrystals enabled by an aqueous synthesis on a microfluidic platform

“…Microfluidics has been demonstrated to be a reliable and powerful technique for large-scale manufacturing of nanoparticles and nanocrystals. [14][15][16] Compared with the small-scale synthesis of materials for fundamental research, microfluidics can provide continuous fabrication of materials and eliminate the samples' irreproducibility originating from batch-to-batch fabrication. [17][18][19] Currently, microfluidics is used to synthesize Pb-based NCs.…”