Preliminary insight into the formation process of InP and GaP nanocrystals

摘要

GaP and InP nanocrystals have been prepared from a mixture of GaCl_3, InCl_3, Na and yellow phosphorus. the reaction process was investigated by differential thermal analysis (DTA) and X-ray Diffraction (XRD) measurements. It was suggested that the reaction was as follows: GaCl_3 and InCl_3 were firstly reduced by Na, and thus produced Ga and In simple substances. The the mixture of In, Ga and yellow phosphorus (IGP mixture) reacted further into InP nanocrystals at 480 ℃ and GaP nanocrystals at 600 ℃