Improvement of Luminescent Properties of PbWO4 by Doping with Gd3+ Ions
来源期刊：JOURNAL OF RARE EARTHS2002年第1期
论文作者：刘波 陈永虎 施朝淑 周东方
Key words：rare earths; PbWO4 crystal; luminescence; scintillator; Gd3+ ion;
Abstract: The luminescent properties of PbWO4∶Gd3+ were studied. The luminescence of Gd3+ in PbWO4∶Gd3+ was quenched. It is possible that the excitation states of Gd3+ locate in the conduction band of PbWO4 crystal. The luminescent intensity of the green and the blue band of PbWO4 emission increases by doping with about 0.005% and 0.01% (molar fraction) Gd3+ respectively. Mechanism of this enhancement of PbWO4∶Gd3+ luminescence is probably due to energy transfer from Gd3+ to PbWO4 host in the crystal. The PbWO4 doped with low concentration of Gd (about 0.005%～0.01%) is a good scintillating material.
刘波1，陈永虎1，施朝淑1，周东方1
(1.National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China;
2.Department of Physics, University of Science and Technology of China, Hefei 230026, China)
Abstract:The luminescent properties of PbWO4∶Gd3+ were studied. The luminescence of Gd3+ in PbWO4∶Gd3+ was quenched. It is possible that the excitation states of Gd3+ locate in the conduction band of PbWO4 crystal. The luminescent intensity of the green and the blue band of PbWO4 emission increases by doping with about 0.005% and 0.01% (molar fraction) Gd3+ respectively. Mechanism of this enhancement of PbWO4∶Gd3+ luminescence is probably due to energy transfer from Gd3+ to PbWO4 host in the crystal. The PbWO4 doped with low concentration of Gd (about 0.005%～0.01%) is a good scintillating material.
Key words:rare earths; PbWO4 crystal; luminescence; scintillator; Gd3+ ion;
【全文内容正在添加中】
