Spectroscopic properties of Ce 3+ -doped borosilicate glasses under UV excitation

Abstract Li 2 O⿿BaO⿿La 2 O 3 ⿿Al 2 O 3 ⿿B 2 O 3 ⿿SiO 2 glasses doped with Ce 3+ ion have been synthesized by melt-quenching method and the transmission, excitation, emission spectra and lifetime have been measured. A broad absorption band is observed in UV region, and it exhibits an intense blue emission which ascribes to 5d⿿4f electronic transition of Ce 3+ ion under UV excitation. The emission intensity of Ce 3+ ion in the borosilicate glasses decreases and the emission maximum of Ce 3+ ion shifts to longer wavelength with the decreasing B 2 O 3 /SiO 2 ratio. It could be found there are the existence of cerium concentration quenching phenomenon and the red shift of emission spectra of Ce 3+ -doped borosilicate glasses with the increase of Ce 2 O 3 content. A fast luminescence decay time of about 26.6 ns can be obtained in Ce 3+ -doped borosilicate glass, which indicates the potential applications of Li 2 O⿿BaO⿿La 2 O 3 ⿿Al 2 O 3 ⿿B 2 O 3 ⿿SiO 2 glasses doped with Ce 3+ ion in radiation detection.