[Luminescence properties of Pr(3+) and energy transfer characteristics of Pr(3+)-->Gd(3+) in CaSiO3].
The excitation spectrum and the emission spectrum of Pr3+ in CaSiO3 under the room temperature were studied. The emission spectrum was constituted of three emission bands, corresponding to the emissions of the lowest 4f5d states to the 3H4, 3H6, 1G4 of the 4f2 states. The emission of the 3P0 and 1D2 were not observed. The concentration quenching of Pr3+ was due to the radiative and nonradiative energy transfer. There was energy transfer from Pr3+ to Gd3+, with the transfer rate of 10% of the Pr3+ emission rate.
Chu
Ben-li
BL
Laboratory of Excited State Processes, Chinese Academy of Sciences, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130021, China.
Liu
Xing-ren
XR
Wang
Xiao-jun
XJ
Zhang
Jia-hua
JH
Jiang
Xue-yin
XY
D017610:Calcium Compounds / Q000737:chemistry*; D004563:Electrochemistry; D004735:Energy Transfer; D005682:Gadolinium / Q000737:chemistry*; D049449:Luminescence; D010777:Photochemistry; D011221:Praseodymium / Q000737:chemistry*; D017640:Silicates / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013053:Spectrophotometry
D017610:Calcium Compounds; D017640:Silicates; D005682:Gadolinium; D011221:Praseodymium; C031293:calcium silicate