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Nanostructured double layered hydroxides with up e down-conversion properties for applications as sensitizers in solar cells


The development of alternative energy sources able to solve the problem of the efficiency in solar energy conversion, i.e., increasing the relation between the energy absorbed and the available one is the key to attend the ever-increasing demand for energy. Rare earth doped mesostructured double layered hydroxides (LDH) provide significant potential for matching the requirements between molecular and mesoscopic organization of different photon conversion structures and sensitizers. In this kind of material, anionic sensitizing dyes or nanostructures can directly adsorb to positive charge located on the rare earth atoms leading to an efficient energy transfer, while additional photo-(chemical) conversion systems and/or substrates can be hosted in close vicinity within the mesostructure. This alternative allows the improvement of the overall energy harvesting efficiency of photo-chemical, -physical and voltaic applications. The successful synthesis of luminescent, mesostructured LDH materials is expect to have an impact in photochemical applications in the same way as the chemical revolution initiated by the introduction of large pore zeolites and other mesoporous aluminosilicates. In the frame of developing a multidisciplinary work, integrating two of the main areas of knowledge, physics and chemistry, this project aims the preparation and study of mesostructured LDH organized in nanotubular form with up and down-conversion properties for applications as photosensitizer in solar cells. (AU)

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Scientific publications (7)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
NUNES SILVA, IVAN GUIDE; MORAIS, ALYSSON FERREIRA; LIMA, BONIFACIO COELHO; GARCIA, FERNANDO ASSIS; MUSTAFA, DANILO. Investigation of the structure-luminescence relationship in ZnAlEu layered double hydroxides intercalated with nitrate and benzenecarboxylates. APPLIED CLAY SCIENCE, v. 199, DEC 1 2020. Web of Science Citations: 0.
SILVA, IVAN G. N.; MORALS, ALYSSON F.; MUSTAFA, DANILO. Synthesis, characterization and Judd-Ofelt analysis of Sm3+-doped anhydrous Yttrium trimesate MOFs and their Y2O3:Sm3+ low temperature calcination products. Journal of Luminescence, v. 210, p. 335-341, JUN 2019. Web of Science Citations: 0.
TEIXEIRA, ALEXANDRE C.; MORAIS, ALYSSON F.; SILVA, IVAN G. N.; BREYNAERT, ERIC; MUSTAFA, DANILO. Luminescent Layered Double Hydroxides Intercalated with an Anionic Photosensitizer via the Memory Effect. CRYSTALS, v. 9, n. 3 MAR 14 2019. Web of Science Citations: 1.
MORAIS, A. F.; MACHADO, F. O.; TEIXEIRA, A. C.; SILVA, I. G. N.; BREYNAERT, E.; MUSTAFA, D. Enhanced luminescence in ZnAlEu layered double hydroxides with interlamellar carboxylate and beta-diketone ligands. Journal of Alloys and Compounds, v. 771, p. 578-583, JAN 15 2019. Web of Science Citations: 1.
SILVA, I. G. N.; CUNHA, C. S.; MORAIS, A. F.; BRITO, H. F.; MUSTAFA, D. Eu3+ or Sm3+-Doped terbium-trimesic acid MOFs: Highly efficient energy transfer anhydrous luminophors. Optical Materials, v. 84, p. 123-129, OCT 2018. Web of Science Citations: 4.
SILVA, I. G. N.; MORAIS, A. F.; BRITO, H. F.; MUSTAFA, D. Y2O2SO4:Eu3+ nano-luminophore obtained by low temperature thermolysis of trivalent rare earth 5-sulfoisophthalate precursors. CERAMICS INTERNATIONAL, v. 44, n. 13, p. 15700-15705, SEP 2018. Web of Science Citations: 2.
SILVA, IVAN G. N.; MORAIS, ALYSSON E.; ZAMBON, LUIS F. M.; BRITO, HERMI F.; MUSTAFA, DANILO. Nanostructured CeO2:Eu3+ luminophore obtained by low temperature benzenetricarboxylate method. Optical Materials, v. 76, p. 48-55, FEB 2018. Web of Science Citations: 1.

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Filed patent(s) as a result of this research project

Solicitação em análise e dentro do prazo legal de sigilo previsto na legislação BR1020180092669 - Universidade de São Paulo (USP) . Solicitação em análise e dentro do prazo legal de sigilo previsto na legislação - May 2018, 07