| Grant number: | 12/20908-4 |
| Support Opportunities: | Scholarships in Brazil - Master |
| Effective date (Start): | March 01, 2013 |
| Effective date (End): | February 28, 2015 |
| Field of knowledge: | Engineering - Chemical Engineering |
| Principal Investigator: | Eduardo José Nassar |
| Grantee: | Camila Maria Alves Ferreira |
| Host Institution: | Reitoria. Universidade de Franca (UNIFRAN). Franca , SP, Brazil |
Abstract Thin luminescent films have seen great technological advances and can be used to produce a variety of materials such as sensors, solar cells, photovoltaic devices, and optical magnetic readers and recorders.New methodologies for the synthesis of polycrystalline yttrium and aluminum in milder conditions have emerged, including the sol-gel process. The sol-gel methodology has been applied to the development of solid-state lasers containing organic dopants. Although this method uses mild temperatures, the facile decomposition of the organic dopants in the reaction medium has limited its use. To overcome this limitation, several works have focused on the non-hydrolytic sol-gel route, which enables the in situ preparation of the reagents and affords a more homogeneous product. In this work, we will use the non-hydrolytic sol-gel method to prepare inorganic matrixes consisting of mixed yttrium and aluminum oxides doped with europium(III) ions; the precursor solutions will generate films that will be deposited by the 'dip-coating' and 'spin-coating' techniques. We will characterize the resultingfilms by X-ray diffraction, scanning electron microscopy, electronic and vibrational spectroscopy, and europium(III) ions photoluminescence. | |
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