TY - JOUR
T1 - Structural and luminescence properties of lu2O3
T2 - Eu3+ F127 tri-block copolymer modified thin films prepared by sol-gel method
AU - Ramírez, Angel de Jesus Morales
AU - Hernández, Margarita García
AU - Murillo, Antonieta García
AU - Romo, Felipe de Jesús Carrillo
AU - Palmerin, Joel Moreno
AU - Velazquez, Dulce Yolotzin Medina
AU - Jota, María Luz Carrera
PY - 2013
Y1 - 2013
N2 - Lu2O3:Eu3+ transparent, high density, and optical quality thin films were prepared using the sol-gel dip-coating technique, starting with lutetium and europium nitrates as precursors and followed by hydrolysis in an ethanol-ethylene glycol solution. Acetic acid and acetylacetonate were incorporated in order to adjust pH and as a sol stabilizer. In order to increment the thickness of the films and orient the structure, F127 Pluronic acid was incorporated during the sol formation. Structural, morphological, and optical properties of the films were investigated for different F127/Lu molar ratios (0-5) in order to obtain high optical quality films with enhanced thickness compared with the traditional method. X-ray diffraction (XRD) shows that the films present a highly oriented cubic structure <111> beyond 1073 K for a 3-layer film, on silica glass substrates. The thickness, density, porosity, and refractive index evolution of the films were investigated by means of m-lines microscopy along with the morphology by scanning electron microscope (SEM) and luminescent properties.
AB - Lu2O3:Eu3+ transparent, high density, and optical quality thin films were prepared using the sol-gel dip-coating technique, starting with lutetium and europium nitrates as precursors and followed by hydrolysis in an ethanol-ethylene glycol solution. Acetic acid and acetylacetonate were incorporated in order to adjust pH and as a sol stabilizer. In order to increment the thickness of the films and orient the structure, F127 Pluronic acid was incorporated during the sol formation. Structural, morphological, and optical properties of the films were investigated for different F127/Lu molar ratios (0-5) in order to obtain high optical quality films with enhanced thickness compared with the traditional method. X-ray diffraction (XRD) shows that the films present a highly oriented cubic structure <111> beyond 1073 K for a 3-layer film, on silica glass substrates. The thickness, density, porosity, and refractive index evolution of the films were investigated by means of m-lines microscopy along with the morphology by scanning electron microscope (SEM) and luminescent properties.
KW - F127
KW - LuO
KW - Luminescence
KW - M-lines
KW - Tri-block copolymer
UR - http://www.scopus.com/inward/record.url?scp=84875788560&partnerID=8YFLogxK
U2 - 10.3390/ma6030713
DO - 10.3390/ma6030713
M3 - Artículo
C2 - 28809336
SN - 1996-1944
VL - 6
SP - 713
EP - 725
JO - Materials
JF - Materials
IS - 3
ER -