TY - JOUR
T1 - Temperature-dependent photoconductivity of Ce3+-doped SrAl 2O4
AU - Jia, Dongdong
AU - Wang, Xiao Jun
AU - Jia, W.
AU - Yen, W. M.
PY - 2006/7
Y1 - 2006/7
N2 - Long persistence SrAl2O4:Ce3+ single-crystal fibers were prepared using laser-heated pedestal growth method. Four 5d levels split due to crystal field were found in excitation spectrum with peaks at 3.65, 3.87, 4.26, and 4.79 eV, respectively, and the Ce 3+ emission band was observed at 3.22 eV in this host. Temperature-dependent photoconductivity was performed. The results from the photoconductivity measurements indicated that the four 5d manifolds were located at 1.3, 0.5, 0.1, and -0.1 eV (±0.05 eV), respectively, relative to the bottom of the host conduction band. The Ce3+ ground state was then calculated at 2.7 eV above the host valence band.
AB - Long persistence SrAl2O4:Ce3+ single-crystal fibers were prepared using laser-heated pedestal growth method. Four 5d levels split due to crystal field were found in excitation spectrum with peaks at 3.65, 3.87, 4.26, and 4.79 eV, respectively, and the Ce 3+ emission band was observed at 3.22 eV in this host. Temperature-dependent photoconductivity was performed. The results from the photoconductivity measurements indicated that the four 5d manifolds were located at 1.3, 0.5, 0.1, and -0.1 eV (±0.05 eV), respectively, relative to the bottom of the host conduction band. The Ce3+ ground state was then calculated at 2.7 eV above the host valence band.
KW - Delocalization
KW - Excited state dynamics
KW - Photoconductivity
KW - Rare earth
UR - http://www.scopus.com/inward/record.url?scp=33645137177&partnerID=8YFLogxK
U2 - 10.1016/j.jlumin.2005.12.011
DO - 10.1016/j.jlumin.2005.12.011
M3 - Article
AN - SCOPUS:33645137177
SN - 0022-2313
VL - 119-120
SP - 55
EP - 58
JO - Journal of Luminescence
JF - Journal of Luminescence
IS - SPEC. ISS.
ER -