Ag2S-hollow Fe2O3 nanocomposites with NIR photoluminescence†
Abstract
A facile synthesis of Ag2S-hollow Fe2O3 nanocomposites with NIR photoluminescence was firstly demonstrated by the sulfidation of Ag–Fe2O3 core–shell nanoparticles. Characteristic morphology transformations along with color changes were recorded and a mechanism was proposed for the sulfidation process, which can provide new possibilities to fabricate other complex nanostructures.