Electrogenerated chemiluminescence emission from cadmium germanate nanoparticles

Abstract

The ECL phenomenon of nano Cd₂Ge₂O₆, both amorphous and crystallized, is described in this paper. This is the first report on the ECL of semiconductor nanocrystals involving three elements and also the first paper dealing with the amorphous nanomaterials, which shed some light on the exploration of new ECL nanomaterials. The ECL mechanism could be ascribed to the cadmium-rich surface state of amorphous Cd₂Ge₂O₆. The ECL intensity linearly increased along with the square of the H₂O₂ concentration. Therefore, it was employed to detect hydrogen peroxide, and the linear range was 5.0 × 10⁻⁶ to 4.0 × 10⁻⁴ mol L⁻¹.