TY - JOUR
T1 - Enhanced photoluminescence property of sulfate ions modified YAG:Ce3+ phosphor by co-precipitation method
AU - QUE, Meidan
AU - QUE, Wenxiu
AU - ZHOU, Ting
AU - SHAO, Jinyou
AU - KONG, Lingbing
N1 - Publisher Copyright:
© 2017 The Chinese Society of Rare Earths
PY - 2017/3/1
Y1 - 2017/3/1
N2 - The sulfate ions modified YAG:Ce3+ phosphors were prepared by co-precipitation method and characterized by X-ray diffraction, transmission electron microscopy, and photoluminescence. Effects of sulfate ions on the photoluminescence (PL) property of the as-prepared YAG:Ce3+ phosphors were studied, with sodium dodecyl sulfate (SDS) being added to R3+ (Ce3+, Y3+, Al3+) ions. Results indicated that pure YAG:Ce3+ phosphors with different ratios of sulfate ions could be easily obtained by calcining the as-synthesized precursor at 950 °C for 2 h, the YAG:Ce3+ phosphors with an optimal mass ratio of 3.5 wt.% SDS had the highest emission intensity and the best dispersion behavior, and the fluorescence decay of the as-obtained YAG:Ce3+ phosphors was related to the lattice defect, reabsorption and cross correlation. Furthermore, thermal quenching properties of the YAG:Ce3+ phosphors and the YAG:Ce3+ phosphors with 3.5 wt.%SDS were also discussed, indicating that the YAG:Ce3+ with SDS phosphors could have potential applications in the daylight LEDs or warm white LEDs.
AB - The sulfate ions modified YAG:Ce3+ phosphors were prepared by co-precipitation method and characterized by X-ray diffraction, transmission electron microscopy, and photoluminescence. Effects of sulfate ions on the photoluminescence (PL) property of the as-prepared YAG:Ce3+ phosphors were studied, with sodium dodecyl sulfate (SDS) being added to R3+ (Ce3+, Y3+, Al3+) ions. Results indicated that pure YAG:Ce3+ phosphors with different ratios of sulfate ions could be easily obtained by calcining the as-synthesized precursor at 950 °C for 2 h, the YAG:Ce3+ phosphors with an optimal mass ratio of 3.5 wt.% SDS had the highest emission intensity and the best dispersion behavior, and the fluorescence decay of the as-obtained YAG:Ce3+ phosphors was related to the lattice defect, reabsorption and cross correlation. Furthermore, thermal quenching properties of the YAG:Ce3+ phosphors and the YAG:Ce3+ phosphors with 3.5 wt.%SDS were also discussed, indicating that the YAG:Ce3+ with SDS phosphors could have potential applications in the daylight LEDs or warm white LEDs.
KW - YAG:Ce phosphor
KW - luminescence properties
KW - rare earths
KW - sodium dodecyl sulfate
KW - uniform dispersion
UR - https://www.scopus.com/pages/publications/85014117578
U2 - 10.1016/S1002-0721(17)60902-5
DO - 10.1016/S1002-0721(17)60902-5
M3 - 文章
AN - SCOPUS:85014117578
SN - 1002-0721
VL - 35
SP - 217
EP - 222
JO - Journal of Rare Earths
JF - Journal of Rare Earths
IS - 3
ER -