Investigations on photoluminescence and cathodoluminescence properties of Ca3La6(SiO4)6:Tb(3+), Mn(2.).
Tb(3+)/Mn(2+) activated Ca3La6(SiO4)6 (CLS) phosphors were prepared by solid-state reaction method, and their photoluminescence and cathodoluminescence (CL) properties were investigated. The CLS:Tb(3+) sample shows a yellowish green emission under 377nm excitation, and the excitation spectrum reveals the excitation peaks between 340 and 390nm can match with the near-ultraviolet LED chip. Excellent thermal stability has been obtained in the CLS:Tb(3+) phosphor by studying the temperature dependence of the Tb(3+) emission intensity. By introducing Mn(2+) into CLS:Tb(3+), tunable emissions are generated due to the efficient energy transfer from Tb(3+) to Mn(2+). The CL spectrum of CLS:Tb(3+) displays that the characteristic (5)D4-(7)FJ (J=6-3) transitions of Tb(3+) are found under electron beam excitation. The above investigation results imply that the CLS:Tb(3+), Mn(2+) phosphors could have potential applications on LEDs and FEDs.
School of Physics and Electronic Electrical Engineering, Huaiyin Normal University, 111 West Chang Jiang Road, Huai'an 223001, China. Electronic address: zhangjianew@126.com.
Jia
J
Zhang
School of Physics and Electronic Electrical Engineering, Huaiyin Normal University, 111 West Chang Jiang Road, Huai'an 223001, China.
Beibei
B
Zhou
School of Physics and Electronic Electrical Engineering, Huaiyin Normal University, 111 West Chang Jiang Road, Huai'an 223001, China.
Xichen
X
Wang
Ca(3)La(6)(SiO(4))(6):Tb(3+), Mn(2+); Luminescence; Phosphor