Sb3+/Mn2+ co-doped tunable white emitting borosilicate glasses for LEDs.
Luminescent properties of Sb(3+)/Mn(2+) co-doped borosilicate glasses containing no rare earth ions were systematically investigated through absorption, excitation, emission spectra, and decay curves. Upon 250-340 nm light excitation, the glasses exhibit broad blue emission at 400 nm (Sb(3+)) and red emission at 615 nm (Mn(2+)). The varied emitted color from blue through white and eventually to red can be obtained by properly tuning the content of Mn(2+) ions due to energy transfer from Sb(3+) to Mn(2+). Our investigation shows that Sb(3+)/Mn(2+) co-doped glasses may provide a new platform to design and fabricate luminescent materials for UV LED chips in the future.
Department of Physics, Zhejiang Normal University, Jinhua, Zhejiang 321004, China. ghh@zjnu.cn
Hai
H
Guo
RongFei
R
Wei
YunLe
Y
Wei
XueYun
X
Liu
JiaYu
J
Gao
ChongGeng
C
Ma