Project supported by the National Natural Science Foundation of China (Grant Nos. 50972061,51272109,and 21171102);the Natural Science Foundation of Zhejiang Province of China (Grant Nos. R4100364 and Z4110072);the Natural Science Foundation of Ningbo City (Grant No. 2012A610115);K. C.Wong Magna Fund in Ningbo University
Optical absorption,excitation,and fluorescence were investigated in Eu ion-doped CdWO4 single crystal grown by a modified Bridgman method.The results indicate that Eu^2+ and Eu^3+ ions coexist in CdWO4 crystal and a...