Zhang Mingrong, Hu Guanqin, Li Peijun, Xu Li, Yin Zhiwen. MECHANISM OF THE EFFECT OF La DOPING ON PbWO<sub>4</sub> SINGLE CRYSTAL[J]. Chinese Journal of Luminescence, 1997,18(4): 320-322
Zhang Mingrong, Hu Guanqin, Li Peijun, Xu Li, Yin Zhiwen. MECHANISM OF THE EFFECT OF La DOPING ON PbWO<sub>4</sub> SINGLE CRYSTAL[J]. Chinese Journal of Luminescence, 1997,18(4): 320-322DOI:
a conclusion that no EPR center exists in La:PWO crystals was made.The role of La doping was thought as to increase the concentration of Pb
2+
vacancy (V
Pb
)" that could improve the optical transmittance of the crystals.And the degradation of luminescent intensities with increasing La concentration may be due to the nonradiative energy transfer of La