TY - JOUR
T1 - Synthesis of Lu2O3:Eu3+ luminescent ceramic powder embedded in SiO2 matrix
AU - Jota, María Luz Carrera
AU - Hernández, Margarita García
AU - Murillo, Antonieta García
AU - De Jesús Carrillo Romo, Felipe
AU - Becerril, Ernesto Rivera
AU - De Jesús Morales Ramírez, Angel
AU - Enrriquez, Haggeo Desirena
AU - De La Rosa Cruz, Elder
N1 - Publisher Copyright:
© 2014 The Japan Institute of Metals and Materials
PY - 2014
Y1 - 2014
N2 - In the present work, the effect of SiO2 was analyzed in different molar ratios (Lu : Si = 4 : 1, 6 : 1, 8 : 1, 10 : 1 and 1 : 0), in order to prepare SiO2 embedded Lu2O3:Eu3+ sol-gel luminescent powders, from a modified PVP-containing solution. The crystalized SiO2 embedded Lu2O3:Eu3+ powders were characterized by Fourier transform infrared spectroscopy revealing the presence of high intensity bands associated with siloxanes groups at 700° C, which could indicate a cross-linked Si-O groups to Lu2O3:Eu3+. X-ray diffraction results showed that cubic phase was present in the powder heat treated at 500° C and remained up to 700° C. The powders SiO2 embedded Lu2O3:Eu3+ powders in molar ratio Lu:Si 4 : 1 and 10 : 1 masked the crystallinity of glass ceramic. The SiO2 effect on the morphology of the glass ceramic systems was monitored by scanning electron microscopy observations, from these results homogenous particles were obtained for Lu:Si 6 : 1 and 8 : 1 systems. Photoluminescence studies showed that adding silica to the ceramic systems increases the typical emission to around λem = 611 nm.
AB - In the present work, the effect of SiO2 was analyzed in different molar ratios (Lu : Si = 4 : 1, 6 : 1, 8 : 1, 10 : 1 and 1 : 0), in order to prepare SiO2 embedded Lu2O3:Eu3+ sol-gel luminescent powders, from a modified PVP-containing solution. The crystalized SiO2 embedded Lu2O3:Eu3+ powders were characterized by Fourier transform infrared spectroscopy revealing the presence of high intensity bands associated with siloxanes groups at 700° C, which could indicate a cross-linked Si-O groups to Lu2O3:Eu3+. X-ray diffraction results showed that cubic phase was present in the powder heat treated at 500° C and remained up to 700° C. The powders SiO2 embedded Lu2O3:Eu3+ powders in molar ratio Lu:Si 4 : 1 and 10 : 1 masked the crystallinity of glass ceramic. The SiO2 effect on the morphology of the glass ceramic systems was monitored by scanning electron microscopy observations, from these results homogenous particles were obtained for Lu:Si 6 : 1 and 8 : 1 systems. Photoluminescence studies showed that adding silica to the ceramic systems increases the typical emission to around λem = 611 nm.
KW - Europium
KW - Glass ceramic powder
KW - Luminescent properties
KW - Lutetium oxide
KW - Sol-gel
UR - http://www.scopus.com/inward/record.url?scp=84911898202&partnerID=8YFLogxK
U2 - 10.2320/matertrans.M2014247
DO - 10.2320/matertrans.M2014247
M3 - Artículo
SN - 1345-9678
VL - 55
SP - 1867
EP - 1871
JO - Materials Transactions
JF - Materials Transactions
IS - 12
ER -