Synthesis and optical characterization of Er-doped bismuth titanate nanoparticles grown by sol-gel hydrothermal method
Fuentes, Sandra (Centro para el Desarrollo de la Nanociencia y la Nanotecnología (Chile))
Muñoz, Pamela (Universidad Católica del Norte)
Llanos, Jaime ![ORCID Identifier](/img/uab/orcid.ico)
(Universidad Católica del Norte)
Vega, Mauricio (Universidad Católica del Norte)
Martin, Inocencio R. (Universidad de La Laguna)
Chávez Ángel, Emigdio ![ORCID Identifier](/img/uab/orcid.ico)
(Institut Català de Nanociència i Nanotecnologia)
Date: |
2017 |
Abstract: |
The Er-doped bismuth titanate (BiTiO, BIT) nanoparticles were synthesized by a combined sol-gel and hydrothermal method under a partial oxygen pressure of 30 bar. The composition and morphology were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Raman scattering. They showed pure and homogeneous spherical BIT nanoparticles with a size below the 30 nm. The incorporation of Er ions showed a strong decrease in the lattice parameters, as well as averaged particle size. The photoluminescence up-conversion (excitation wavelength =1480 nm) showed an enhancement of the infrared emission (980 nm) as Er concentration increased, achieving a maximum for 6% mol, while photoluminescence spectra (excitation wavelength =473 nm) showed a strong green emission (529 and 553 nm) with a maximum at 4% mol. |
Rights: |
Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. ![Creative Commons](/img/licenses/by-nc-nd.ico) |
Language: |
Anglès |
Document: |
Article ; recerca ; Versió acceptada per publicar |
Subject: |
Oxide materials ;
Sol-gel processes ;
Hydrothermal ;
Photoluminescence |
Published in: |
Ceramics international, Vol. 43, Issue 4 (March 2017) , p. 3623-3630, ISSN 0272-8842 |
DOI: 10.1016/j.ceramint.2016.11.200
The record appears in these collections:
Research literature >
UAB research groups literature >
Research Centres and Groups (research output) >
Experimental sciences >
Catalan Institute of Nanoscience and Nanotechnology (ICN2)Articles >
Research articlesArticles >
Published articles
Record created 2020-06-25, last modified 2022-09-10