A series of garnet solid solutions of [(Gd1-xLux)1-yDyy]3Al5O12(x=0.1-1.0 and y=0-0.10),with simultaneously strong blue(~483 nm,the 4F9/2→6H15/2 transition of Dy3+)and yellow(~584 nm,the 4F9/2→6H13/2 transition of Dy3+)emissions,have been developed as phosphors for efficient white-light emissions.The energy transfer from Gd3+ to Dy3+ produces an additional excitation band,being the strongest,at~275 nm that corresponds to the 8S7/2→6IJ intra f-f transition of Gd3+.With the energy transfer,significantly stronger Dy3+ emission(roughly two fold)was obtained through exciting Gd3+ at 275 nm rather than directly exciting Dy3+ at 352 nm(the strongest intra f-f transition of Dy3+).