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YAG-Ce,Nd,and Yb phosphors with a triple-doped system are prepared by conventional solid-state reaction method.The fluorescence emission and excitation spectra are measured and analyzed.The influences of Yb3+ doping concentration on the emission of Yb3+ and Nd3+ in YAG-Ce,Nd,and Yb are studied.The fluorescence decay spectra,lifetime,and energy transfer efficiency of Ce3+ in different host materials of YAG-Ce and Yb,and YAG-Ce,Nd,and Yb are also compared.Furthermore,the trends of fluorescence decay spectra and the lifetimes of Nd3+ and Yb 3+ in YAG-Ce,Nd,and Yb with the increase of Yb3+ concentration are discussed.Results indicate that YAG-Ce,Nd,and Yb are good candidates for downconverting phosphor,with energy transfer efficiency reaching as high as 82.8%.
YAG-Ce, Nd, and Yb phosphors with a triple-doped system are prepared by conventional solid-state reaction method. The fluorescence emission and excitation spectra are measured and analyzed. The influences of Yb3 + doping concentration on the emission of Yb3 + and Nd3 + in YAG-Ce, Nd, and Yb are studied. The fluorescence decay spectra, lifetime, and energy transfer efficiency of Ce3 + in different host materials of YAG-Ce and Yb, and YAG-Ce, Nd, and Yb are also more. the trends of fluorescence decay spectra and the lifetimes of Nd3 + and Yb 3+ in YAG-Ce, Nd, and Yb with the increase of Yb3 + concentrations are discussed. Results recombination that that YAG-Ce, Nd, and Yb are good candidates for downconverting phosphor , with energy transfer efficiency reached as high as 82.8%.