Study on growth kinetics of CdSe nanocrystals in oleic acid/dodecylamine

A novel synthesis of CdSe nanocrystals is presented, which is based on the lower temperature reaction between TOPSe and cadmium acetate. An oleic acid/dodecylamine solvent was employed for studying the growth kinetics of CdSe nanoparticles at 200 °C. The concentration of growing particles remained constant following the initial nucleation step. The diameter of the CdSe nanocrystals varied from 2.0±0.1 nm up to 3.7±0.2 nm. About 90% of the available Cd was consumed during the growth. The rate constant for steady-state CdSe deposition was found to be 9.74×10−10 m s−1 at 200 °C.