Facile sonochemical synthesis of nanosized InP and GaP.

A novel sonochemical method for the preparation of MP (M=Ga, In) nanocrystalline materials has been developed. The procedure consists of the in situ synthesis of sodium phosphide and its subsequent reaction with the appropriate metal chloride using ultrasound. The products were characterized by X-ray powder diffraction, electron microscopy, and energy dispersive X-ray microanalysis (EDX). The choice of solvent and the use of high-power ultrasound are both important in the formation of the products.