Structural and Luminescence Properties of Lu2O3:Eu3+ F127 Tri-Block Copolymer Modified Thin Films Prepared by Sol-Gel Method
| Autor: | Antonieta García Murillo, Dulce Yolotzin Medina Velazquez, Felipe de Jesús Carrillo Romo, Joel Moreno Palmerin, María Luz Carrera Jota, Ángel de Jesús Morales Ramírez, Margarita García Hernández |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Materials science
Scanning electron microscope chemistry.chemical_element Mineralogy F127 lcsh:Technology Article Microscopy Lu2O3 luminescence General Materials Science Thin film lcsh:Microscopy Porosity tri-block copolymer lcsh:QC120-168.85 Sol-gel m-lines lcsh:QH201-278.5 lcsh:T Chemical engineering chemistry lcsh:TA1-2040 lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Engineering (General). Civil engineering (General) Luminescence Europium lcsh:TK1-9971 Refractive index |
| Zdroj: | Materials Materials; Volume 6; Issue 3; Pages: 713-725 Materials, Vol 6, Iss 3, Pp 713-725 (2013) |
| ISSN: | 1996-1944 |
| Popis: | 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 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|