TY - JOUR
T1 - Vanadium-doped MgAl2O4 crystals as white light source
AU - Fujimoto, Yutaka
AU - Tanno, Hiroaki
AU - Izumi, Kazuhiro
AU - Yoshida, Shigetomo
AU - Miyazaki, Shiori
AU - Shirai, Masanobu
AU - Tanaka, Kouichirou
AU - Kawabe, Yutaka
AU - Hanamura, Eiichi
PY - 2008/3
Y1 - 2008/3
N2 - Spinel MgAl2O4 crystals doped with transition metals show charge-transfer transitions for Ti:MgAl2O4 on one hand and multiplet transitions of (3d)-electrons for Mn:, Fe:, and Co:MgAl2O4 on the other hand. We will show that optical responses of V:MgAl2O4 are closer to those of Ti:MgAl2O4 and also that white emission spectrum is observed. The microscopic process of the white emission is also proposed.
AB - Spinel MgAl2O4 crystals doped with transition metals show charge-transfer transitions for Ti:MgAl2O4 on one hand and multiplet transitions of (3d)-electrons for Mn:, Fe:, and Co:MgAl2O4 on the other hand. We will show that optical responses of V:MgAl2O4 are closer to those of Ti:MgAl2O4 and also that white emission spectrum is observed. The microscopic process of the white emission is also proposed.
KW - Charge-transfer excitation
KW - Color center
KW - Crystalline field splitting
KW - Tungsten-doped spinel
KW - V:MgAlO
KW - Vanadium-doped spinel
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U2 - 10.1016/j.jlumin.2007.07.022
DO - 10.1016/j.jlumin.2007.07.022
M3 - Article
AN - SCOPUS:36749066723
SN - 0022-2313
VL - 128
SP - 282
EP - 286
JO - Journal of Luminescence
JF - Journal of Luminescence
IS - 3
ER -