Study of excitation spectra of ZrP_2O_7:Tb in vacuum ultraviolet region

摘要

Samples of ZrP_2O_7 doped with and without Tb in the form of cubic symmetry were prepared and their 147 nm excited emission spectra and excitation spectra for Zr and Tb emission were investigated. The O-Zr excitation band located at 175 nm recorded for Zr-O emission at about 280 nm was observed, but it was not observed when monitored at 543 nm emission of Tb. It indicated that the energy transfer from Zr-Tb did not occur. In addition there are two f-d transition bands of Tb located at 197 and 217 nm respectively in the excitation spectra.