Copper orthovanadate

Copper Orthovanadate, Cu3(V04)2.—When treated with solutions of copper salts, solutions of orthovanadates yield a greenish-yellow precipitate which consists mainly of copper orthovanadate with excess of vanadium pentoxide.6... 

Clusters of three phosphors are used for each dot in a color television or computer display screen. Commonly used phosphors for this purpose are europium-activated yttrium orthovanadate, YVO4, for the red color, silver-activated zinc sulfide for blue, and copper-activated zinc sulfide for green. 

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