TY - JOUR
T1 - Luminescence properties of La2O2S:Tb3+ phosphors and phosphor-embedded polymethylmethacrylate films
AU - Wang, Lixi
AU - Yang, Xiaojuan
AU - Zhang, Qitu
AU - Song, Bo
AU - Wong, Chingping
N1 - Publisher Copyright:
© 2017
PY - 2017/7/5
Y1 - 2017/7/5
N2 - La2O2S:Tb3+ phosphors were synthesized by a one-step K2CO3/Na2CO3 flux method and phosphor-embedded polymethylmethacrylate (PMMA) films were fabricated by spin coating. Effects of calcination temperature and flux on the crystal structure, morphology and luminescence performance were evaluated by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, photoluminescence and calculation of CIE color coordinates. In the emission spectra, several emission peaks corresponding to 5D4→7F6, 5D4→7F5, 5D4→7F4, and 5D4→7F3 transitions appeared, with the 5D4→7F3 green emission being the dominant emission. The energy band gap, quantum efficiency, fluorescence decay curves, and thermal stability were also investigated with the aim of exploring the potential applicability of the synthesized phosphors in optical devices.
AB - La2O2S:Tb3+ phosphors were synthesized by a one-step K2CO3/Na2CO3 flux method and phosphor-embedded polymethylmethacrylate (PMMA) films were fabricated by spin coating. Effects of calcination temperature and flux on the crystal structure, morphology and luminescence performance were evaluated by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, photoluminescence and calculation of CIE color coordinates. In the emission spectra, several emission peaks corresponding to 5D4→7F6, 5D4→7F5, 5D4→7F4, and 5D4→7F3 transitions appeared, with the 5D4→7F3 green emission being the dominant emission. The energy band gap, quantum efficiency, fluorescence decay curves, and thermal stability were also investigated with the aim of exploring the potential applicability of the synthesized phosphors in optical devices.
KW - Green emission
KW - LaOS:Tb
KW - PMMA films
KW - Phosphors
UR - http://www.scopus.com/inward/record.url?scp=85017163147&partnerID=8YFLogxK
U2 - 10.1016/j.matdes.2017.04.003
DO - 10.1016/j.matdes.2017.04.003
M3 - 文章
AN - SCOPUS:85017163147
SN - 0264-1275
VL - 125
SP - 100
EP - 108
JO - Materials and Design
JF - Materials and Design
ER -