Zhang Baoying, Chen Tiemin, Chen Chunrong, Hong Guangyan, Li Youmo. SPECTROSCOPIC CHARACTERISTIC OF Ce<sup>3+</sup>,Gd<sup>3+</sup>, Tb<sup>3+</sup>DOPED CaLaB<sub>7</sub>O<sub>13</sub>[J]. Chinese Journal of Luminescence, 1995,16(2): 139-144
Zhang Baoying, Chen Tiemin, Chen Chunrong, Hong Guangyan, Li Youmo. SPECTROSCOPIC CHARACTERISTIC OF Ce<sup>3+</sup>,Gd<sup>3+</sup>, Tb<sup>3+</sup>DOPED CaLaB<sub>7</sub>O<sub>13</sub>[J]. Chinese Journal of Luminescence, 1995,16(2): 139-144DOI:
samples have been synthesized by solid state reaction method and their spectra have been measured. In the spectra of Ce
3+
a new excitation peak at 317nm and a new emission peak at 293nm were found which had not been reported in the literature.293nm peak is due to the emission from the next lowest 5d level of Ce
3+
to the ground state which is rather uncommon to be seen. The height of this peak lowers as the concentration of Ce