Nonaqueous Synthesis of Colloidal ZnGa2O4Nanocrystals and Their Photoluminescence Properties

Colloidal ZnGa2O4 nanocrystals with a mean size of about 7 nm were successfully synthesized by using a non-aqueous sol–gel method.The nanocrystals can easily be dispersed in chloroform to form stable colloids without the use of any additional stabilizers. Strong blue fluorescence was observed from the clear colloidal solution of the nanocrystals under UV light.