Synthesis and Characterization of Si1− x Ge x (0 ≤ x 1) Nanoparticles Using Inverse Micelle Surfactants

摘要

The freestanding blue luminescent Si1a?? x Ge x nanoparticles (NPs) are synthesized by the reduction of SiCl4 and GeCl4 within inverse micelles. Transmission electron microscopy imaging shows that the mean size of the Si1a?? x Ge x NPs was 6.85 ?± 4.05 nm. The Si and Ge composition of the NPs is characterized by energy dispersive Xa??ray spectroscopy, resulting in the stoichiometry of the NPs from Si0. 49Ge0 .51 to Si0. 66Ge0 .34 that the NPs are mainly composed of Si and Ge. In the Raman study, the Si?￡?Ge bond in the NPs is observed at 395 cma??1. In the optical study, the NPs show an emission spectrum (??em = 359 nm).