TY - JOUR
T1 - Combustion synthesis and photoluminescence of Ce3+-activated MHfO3 (M = Ba, Sr, or Ca)
AU - Ji, Y. M.
AU - Jiang, D. Y.
AU - Wu, Z. H.
AU - Feng, T.
AU - Shi, J. L.
PY - 2005/9/1
Y1 - 2005/9/1
N2 - A simple sol-combustion route involving EDTA was employed to prepare nanosized MHfO3:Ce (M = Ba, Sr, or Ca) which were characterized by XRD, TEM and luminescent measurements. The as-prepared powders consist of particles with cube-like morphologies for Ce-doped BaHfO3 and SrHfO3 and uniform polyhedron-like morphology for Ce-doped CaHfO 3. The average sizes of crystallites of BaHfO3:Ce, SrHfO3:Ce and CaHfO3:Ce are 48, 34 and 30.4 nm, respectively. Broad emissions for nanocrystals of MHfO3:Ce (M = Ba, Sr, or Ca) resulting from Ce3+ 5d → 4f transitions were observed under UV excitation, and the Stokes shift for nanocrystals of Ce-doped BaHfO3, SrHfO3 and CaHfO3 are around 9000, 7400 and 7020 cm-1, respectively.
AB - A simple sol-combustion route involving EDTA was employed to prepare nanosized MHfO3:Ce (M = Ba, Sr, or Ca) which were characterized by XRD, TEM and luminescent measurements. The as-prepared powders consist of particles with cube-like morphologies for Ce-doped BaHfO3 and SrHfO3 and uniform polyhedron-like morphology for Ce-doped CaHfO 3. The average sizes of crystallites of BaHfO3:Ce, SrHfO3:Ce and CaHfO3:Ce are 48, 34 and 30.4 nm, respectively. Broad emissions for nanocrystals of MHfO3:Ce (M = Ba, Sr, or Ca) resulting from Ce3+ 5d → 4f transitions were observed under UV excitation, and the Stokes shift for nanocrystals of Ce-doped BaHfO3, SrHfO3 and CaHfO3 are around 9000, 7400 and 7020 cm-1, respectively.
KW - A. Optical materials
KW - B. Chemical synthesis
UR - https://www.scopus.com/pages/publications/22644444572
U2 - 10.1016/j.materresbull.2005.04.026
DO - 10.1016/j.materresbull.2005.04.026
M3 - 文章
AN - SCOPUS:22644444572
SN - 0025-5408
VL - 40
SP - 1521
EP - 1526
JO - Materials Research Bulletin
JF - Materials Research Bulletin
IS - 9
ER -