TY - JOUR
T1 - Preparation of La2O2S:Yb, Er, and its up-conversion luminescence property
AU - Han, Peng De
AU - Zhang, Le
AU - Chen, Yan
AU - Yang, Hao
AU - Wang, Li Xi
AU - Zhang, Qi Tu
PY - 2011/8
Y1 - 2011/8
N2 - La2O3:Yb, Er powder was prepared using coprecipitation and La2O2S:Yb, Er obtained by flux fusion method. Its crystalline structure and morphology were characterized by XRD and SEM, respectively, and its up-conversion emission property was tested by fluorescence spectrometer. The results showed when the co-precipitation temperature was 40°C, oxalic acid 5% excess, oxalic acid concentration 2.34%, pH value 5.53-6.45 and calcining temperature of La2O3 800°C, the idealized La2O3:Yb, Er could be prepared. Moreover, the optimal calcining temperature of La2O2S was 1250°C for 3 h. The morphology of the particles was irregular. Their average size was about 1 μm. Green and red emission bands were observed when the powder was excited by 980 nm laser.
AB - La2O3:Yb, Er powder was prepared using coprecipitation and La2O2S:Yb, Er obtained by flux fusion method. Its crystalline structure and morphology were characterized by XRD and SEM, respectively, and its up-conversion emission property was tested by fluorescence spectrometer. The results showed when the co-precipitation temperature was 40°C, oxalic acid 5% excess, oxalic acid concentration 2.34%, pH value 5.53-6.45 and calcining temperature of La2O3 800°C, the idealized La2O3:Yb, Er could be prepared. Moreover, the optimal calcining temperature of La2O2S was 1250°C for 3 h. The morphology of the particles was irregular. Their average size was about 1 μm. Green and red emission bands were observed when the powder was excited by 980 nm laser.
KW - Coprecipitation
KW - Rare-earth doping
KW - Rare-earth oxysulfide
KW - Up-conversion luminescence
UR - http://www.scopus.com/inward/record.url?scp=80052892183&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:80052892183
SN - 1009-606X
VL - 11
SP - 701
EP - 705
JO - Guocheng Gongcheng Xuebao/The Chinese Journal of Process Engineering
JF - Guocheng Gongcheng Xuebao/The Chinese Journal of Process Engineering
IS - 4
ER -