A series of Eu 3+ doped of Mtype of yttrium orthotantalate Y 1-x Eu x TaO 4( x =0-0.30) was sythesized. The influence of activator concentration on luminescence properties was studied in detail. The strong evidence fr...A series of Eu 3+ doped of Mtype of yttrium orthotantalate Y 1-x Eu x TaO 4( x =0-0.30) was sythesized. The influence of activator concentration on luminescence properties was studied in detail. The strong evidence from excitation spectra, emission spectra and diffusive reflection spectra of this system shows that there is energy transfer from TaO 3- 4 to Eu 3+ via the charge transfer and spectral overlap.展开更多
文摘A series of Eu 3+ doped of Mtype of yttrium orthotantalate Y 1-x Eu x TaO 4( x =0-0.30) was sythesized. The influence of activator concentration on luminescence properties was studied in detail. The strong evidence from excitation spectra, emission spectra and diffusive reflection spectra of this system shows that there is energy transfer from TaO 3- 4 to Eu 3+ via the charge transfer and spectral overlap.