Neodymium Compounds
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Neodymium in hydrogenated amorphous silicon sub-nitrides (a-SiNx:H) / Neodimio em sub-nitretos de silicio amorfo hidrogenado (a-SiNx:H)
In this work, we report a study of the photoluminescence (PL) optimization of a-SiNx:H
thin films prepared by RF co-sputtering. The PL was investigated as a function of nitrogen and neodymium concentrations. We observed that the Nd ions are excited through the amorphous matrix. The excitation mechanism is more efficient in samples where the optical gap E0 Publicado em: 2005
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2. Compostos de adição entre iodetos de itrio e lantanídeos(III) e a N,N,N\ ,N\ - tetrametilmalonamida / N, N, N\ , N\ - tetramethylmalonamide adducts of lanthanide iodides
Addition compounds of formula Lni3.xTMMA (x = 5 for Ln = La, Ce and x = 4 for Ln = Pr - Lu, Y) were prepared by reaction of N,N.N\ ,N\ -tetramethylmalonamide (TMMA) and lanthanide iodides in acetone. The crystalline adducts present the same, but fainter colors of the corresponding lanthanide ions; they are in general practically not hygroscopic and melt with
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/1979
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3. Compostos de adição entre hexafluorofosfatos de ítrio e lantanídeos (III) e a N,N - Dimetilacetamida (DNA) / N,N-Dimethylacetamide adducts of lanthanide hexafluorphosphates
The preparation and characterization of adducts between lanthanide hexafluorophosphates and DMA are described. According to elemental analysis the compounds present two general compositions: Ln(PF6)3.7DMA (Ln= La-Ho) and Ln(PF6)3.6DMA (Ln= Er-Lu, Y). The compounds are crystalline, not hygroscopic and melt between 115-125°C. They are soluble in water, nitrom
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/1977