In colloidal synthesis of inorganic nanoparticles, reliable control of their size and size distribution is one of the most critical aspects of fine-tuning their various properties. The ability to manufacture sub 2-nm ultra-small particles is of particular interest. Here we present a novel induction heating method to provide rapid heating rate for its synthesis, as comparison to the more widely reported microwave heating. We show that with induction heating, mono-dispersed ultra-small nanoparticles can be prepared in a fast and simple manner, with ability to fine-tune its size. With results compared to that of the microwave heating, we also show how extreme high heating rate, precursor reaction mechanism, solvent viscosity and other factors affect the nucleation and growth kinetics of the synthesis.

Induction and microwave heating in syntheses of CdSe quantum dots: Effects of extreme high heating rate on their nucleation and growth kinetics

253rd National Meeting (2017)

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