TY - JOUR
T1 - Enhancement of the red emission in CaTiO3:Pr3+ by addition of rare earth oxides
AU - Zhang, Xianmin
AU - Zhang, Jiahua
AU - Zhang, Xia
AU - Chen, Li
AU - Luo, Yongshi
AU - Wang, Xiao jun
PY - 2007/2/5
Y1 - 2007/2/5
N2 - Enhancement of the 1D2-3H4 red emission of CaTiO3:Pr3+ with addition of rare earth oxides Ln2O3 (Ln = Lu, La, Gd) is reported. Ca2+ and Ti4+ in CaTiO3 can be substituted by Ln3+ ions as donors and acceptors, respectively. Ca2+ and Ti4+ vacancies, as quenching centers in the host, are effectively suppressed by the self-compensation, leading to the increase of lifetimes and then the emission efficiency of 1D2. The red fluorescence intensity for CaTiO3:Pr3+ phosphor co-doped with 5 mol% Lu2O3 is nearly 3 times greater than that of the Lu-free samples.
AB - Enhancement of the 1D2-3H4 red emission of CaTiO3:Pr3+ with addition of rare earth oxides Ln2O3 (Ln = Lu, La, Gd) is reported. Ca2+ and Ti4+ in CaTiO3 can be substituted by Ln3+ ions as donors and acceptors, respectively. Ca2+ and Ti4+ vacancies, as quenching centers in the host, are effectively suppressed by the self-compensation, leading to the increase of lifetimes and then the emission efficiency of 1D2. The red fluorescence intensity for CaTiO3:Pr3+ phosphor co-doped with 5 mol% Lu2O3 is nearly 3 times greater than that of the Lu-free samples.
UR - http://www.scopus.com/inward/record.url?scp=33846197921&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2006.12.023
DO - 10.1016/j.cplett.2006.12.023
M3 - Article
AN - SCOPUS:33846197921
SN - 0009-2614
VL - 434
SP - 237
EP - 240
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 4-6
ER -