Erbium -oxide

Erbinerde, /. erbia, erbium oxide, erbitten, v.t. request persuade, erbittern, v.t. exasperate. 

Dysprosium was first discovered in 1886 by the chemist, Paul-Emile Lecoq de Boisbaudran (1838-1912) as he analyzed a sample of the newly discovered erbium oxide (element 68). Boisbaudran was able to separate erbium oxide from a small sample of a new oxide of a metal. He identified this new element as element 66 on the periodic table and called it dispro-... 

There is only one oxide of erbium, which is called erbium oxide or erbia (2Er +30 —>... 

Erbium oxide was separated and obtained from the rare earth oxide, yttrea in 1842 by Mosander. Urbain and James independently separated this oxide from other rare earth oxide mixtures in 1905. The pure metal was produced by Klemm and Bommer in 1934 in powdered form. 

Ytterhium was discovered in 1878 by J. C. G. de Marignac. He found a new component ytterbia in supposedly pure erbia or erbium oxide that had been... 

Spectrum of the Glowing Oxide.—Neodymium oxide is one of the very few solids with a discontinuous spectrum. The spectrum which was known long before neodymium was separated from its fellow element praesodymium, was briefly described by Bunsen1 in 1864, who in the same communication mentions the discovery by Bahr2 of the similarly banded spectrum of erbium oxide. Thus far, however, no thorough-going study seems to have been made of this class of spectrum. 

PlOC-3 See The decomposition of nitrous oxide on neodymium oxide, dysprosium oxide and erbium oxide, J. Catal., 28, 428 (1973). Some investigators have reported the rate of this reaction to be independent of oxygen concentration and first-order in nitrous oxide concentration, while others have reported the reaction to be first-order in nitrous oxide concentration and negative one-half-order in oxygen concentration. Can you propose a mechanism that is consistent with both observations ... 

The first pure samples of erbium oxide (erbia) were produced in 1905 by French chemist George Urbain (1872-1938) and American chemist Charles James (1880—1928). It was not until 1934 that the first pure erbium metal was produced. 

The name comes from a truncation of the name Ytterby, a town in Sweden where the original ore was discovered. It was one of a number of rare-earth elements linked to yttrium and was first identified by Carl Gustav Mosander (1797-1858) in 1843. It was prepared in impure elemental form in 1905 and in pure form in 1934. One of the rare earths associated with yttria, it is a relatively rare compound and has few uses. Erbium oxide has been used to give glass a pink color. 

Chloride, ErCI, hexahydrate, detiquesc crystals. Sot in w ter slightly sol in alcohol. Prepd by careful evaporation of a soln of erbium oxide in coned HCI Jantsch er of, Z. Anorg. Chem. 207, 353 (1932) dehydrated by heating in a stream of hydrogen chloride. The anhydr form is a pinkish powder, d 4.1. LDn on mice 535 mg/kg i.p. 6.2 g/kg... 

Dierbium trioxide EINECS 235-045-7 Erbia Erbium oxide Erbium oxide (Er203) Erbium sesquioxide Erbium trioxide Erbium(3- ) oxide Erbium(lll) oxide. Phosphor activator, infrared-absorbing glass Solid d 8,64 changing into crystals on heating at 1300 soluble in acids, H2O, Aiomergic Chametals Cerac Noah Cham. Rhone-Poulenc. 

Cu5FeS4 PENTACOPPER IRON TETRASULFIDE 616 Er203 ERBIUM OXIDE (CUBIC) 660... 

Photoluminescence excitation (PLE) spectroscopy was carried out at 77K on oxidized porous silicon containing iron/erbium oxide clusters. The novel PLE spectrum of the 1535 nm Er PL band comprises a broad band extending from 350 to 570 nm and very week bands located at 640, 840, and 895 nm. The excitation at wavelengths of 400 - 560 nm was shown to be the most effective. No resonant PLE peaks related to the direct optical excitation of Er by absorption of pump photons were observed. The lack of the direct optical excitation indicates conclusively that Er is in the bound state and may be excited by the energy transfer within the clusters. 

Uniform 1.5 pm thick PS layers were formed by anodization of p-type Si wafers of 0.3 Ohm em resistivity in 48% HE. After anodization, the HE electrolyte was replaced by a O.IM FeS04+0.001M EifNOals solution and a Fe Er film was electrochemically deposited into PS. As SIMS analysis showed, both Er and Fe can be introduced deeply into PS by this electrochemical technique [5], The maximum Er and Fe concentrations were estimated to be 0.1 and 10 at. %. The samples were oxidized at 500°C for 360 min and then at 1100°C for 15 min in O2 atmosphere. This treatment has been shown to form 5-50 nm iron/erbium oxide clusters inside OPS [5]. As comparison reference, Er-doped OPS containing Si clusters (without Fe) samples were fabricated in a similar way by polarization of PS in an Er(N03)3 solution. Photoluminescence excitation (PLE) spectra were recorded at 77 K by a grating spectrometer MDR-23 equipped with a Ge Cu detector. A Xe lamp was used as the excitation source. 

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