Preparation and Photoluminescence of GdVO4:Eu Nanophospfaors for Flexible and Transparent Displays

摘要

Europium ion doped metal orthovanadate (MVO4:Eu, M = Y, Gd, La) has been widely used as commercial red-emitting phosphors in cathode ray tubes (CRTs), and fluorescent lamps, with photoluminescence quantum yields of up to 95%. Commercial micron-sized MVO4:Eu phosphors are generally prepared by high-temperature solid-state reactions. However, these micron-sized phosphors cannot be used in flexible and transparent displays due to their high scattering. Because nano-sized materials do not show any scattering in the visible region, inorganic nanophosphors have received much attention for their applicability in flexible and transparent display devices.