TY - JOUR
T1 - Enhancement of photoluminescence properties of CaAl 2Si 2O 8:Eu 2+ by SiO 2 addition
AU - Kim, B. S.
AU - Song, Y. H.
AU - Jo, D. S.
AU - Abe, T.
AU - Senthil, K.
AU - Masaki, T.
AU - Toda, K.
AU - Yoon, D. H.
PY - 2012/10
Y1 - 2012/10
N2 - SiO 2 added phosphors, CaAl 2Si 2O 8:Eu 2+ + xSiO 2 (x = 0, 1, 2, 3, 4, 5, 6 and 13 mol) were synthesized by a novel liquid phase precursor (LPP) method. The photoluminescence properties of phosphor added by 5 mol of SiO 2 showed 110% enhancement in the emission intensity compared to the CaAl 2Si 2O 8:Eu 2+ phosphor. A broad emission and excitation wavelength was observed approximately from 400 nm to 600 nm centered at 430 nm and from 280 nm to 400 nm centered at 365 nm, respectively. Photoluminescence intensity of the phosphors increased continuously by SiO 2 addition up to x = 5 mol and then it decreased with further addition of SiO 2. The observed photoluminescence properties of the phosphors were discussed related to their crystalline structure and morphology.
AB - SiO 2 added phosphors, CaAl 2Si 2O 8:Eu 2+ + xSiO 2 (x = 0, 1, 2, 3, 4, 5, 6 and 13 mol) were synthesized by a novel liquid phase precursor (LPP) method. The photoluminescence properties of phosphor added by 5 mol of SiO 2 showed 110% enhancement in the emission intensity compared to the CaAl 2Si 2O 8:Eu 2+ phosphor. A broad emission and excitation wavelength was observed approximately from 400 nm to 600 nm centered at 430 nm and from 280 nm to 400 nm centered at 365 nm, respectively. Photoluminescence intensity of the phosphors increased continuously by SiO 2 addition up to x = 5 mol and then it decreased with further addition of SiO 2. The observed photoluminescence properties of the phosphors were discussed related to their crystalline structure and morphology.
KW - A. Optical materials
KW - C. X-ray diffraction
KW - D. Luminescence
KW - D. Optical properties
UR - https://www.scopus.com/pages/publications/84866308213
U2 - 10.1016/j.materresbull.2012.04.109
DO - 10.1016/j.materresbull.2012.04.109
M3 - Article
AN - SCOPUS:84866308213
SN - 0025-5408
VL - 47
SP - 3015
EP - 3019
JO - Materials Research Bulletin
JF - Materials Research Bulletin
IS - 10
ER -