Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
126 0 |
SM ISO690:2012 SIRBU, Lilian, URSACHI, Veaceslav, TIGINYANU, Ion, DOLGALEVA, Ksenia, BOYD, Robert W.. Red and green nanocomposite phosphors prepared from porous GaAs templates. In: Journal of Optics (United Kingdom), 2007, vol. 9, pp. 401-404. ISSN 2040-8978. DOI: https://doi.org/10.1088/1464-4258/9/4/015 |
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Journal of Optics (United Kingdom) | ||||||
Volumul 9 / 2007 / ISSN 2040-8978 /ISSNe 2040-8986 | ||||||
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DOI:https://doi.org/10.1088/1464-4258/9/4/015 | ||||||
Pag. 401-404 | ||||||
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Rezumat | ||||||
Rare-earth-containing oxide nanocomposites are prepared in a controlled fashion from porous GaAs templates. The initial porous GaAs network is replaced by a β-Ga2O3 one during annealing at temperatures from 500 to 900 °C. The impregnation of Eu and Er lanthanides from EuCl 3:C2H5OH and ErCl3:C 2H5OH solutions results in the formation of xenotime EuAsO4 and ErAsO4 microcrystals finely dispersed into the native oxide matrix. The 4f-4f intrashell transitions in Eu3+ and Er3+ ions ensure red and green emission from EuAsO4 and ErAsO4 nanophases. These nanocomposites may prove useful in future generations of optoelectronic and photonic devices. |
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Cuvinte-cheie photoluminescence, porous materials, X-ray diffraction |
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Dublin Core Export
<?xml version='1.0' encoding='utf-8'?> <oai_dc:dc xmlns:dc='http://purl.org/dc/elements/1.1/' xmlns:oai_dc='http://www.openarchives.org/OAI/2.0/oai_dc/' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd'> <dc:creator>Sîrbu, L.</dc:creator> <dc:creator>Ursachi, V.V.</dc:creator> <dc:creator>Tighineanu, I.M.</dc:creator> <dc:creator>Dolgaleva, K.P.</dc:creator> <dc:creator>Boyd, R.</dc:creator> <dc:date>2007-04-01</dc:date> <dc:description xml:lang='en'><p>Rare-earth-containing oxide nanocomposites are prepared in a controlled fashion from porous GaAs templates. The initial porous GaAs network is replaced by a β-Ga<sub>2</sub>O<sub>3</sub> one during annealing at temperatures from 500 to 900 °C. The impregnation of Eu and Er lanthanides from EuCl <sub>3</sub>:C<sub>2</sub>H<sub>5</sub>OH and ErCl<sub>3</sub>:C <sub>2</sub>H<sub>5</sub>OH solutions results in the formation of xenotime EuAsO<sub>4</sub> and ErAsO<sub>4</sub> microcrystals finely dispersed into the native oxide matrix. The 4f-4f intrashell transitions in Eu<sup>3+</sup> and Er<sup>3+</sup> ions ensure red and green emission from EuAsO<sub>4</sub> and ErAsO<sub>4</sub> nanophases. These nanocomposites may prove useful in future generations of optoelectronic and photonic devices.</p></dc:description> <dc:identifier>10.1088/1464-4258/9/4/015</dc:identifier> <dc:source>Journal of Optics (United Kingdom) () 401-404</dc:source> <dc:subject>photoluminescence</dc:subject> <dc:subject>porous materials</dc:subject> <dc:subject>X-ray diffraction</dc:subject> <dc:title>Red and green nanocomposite phosphors prepared from porous GaAs templates</dc:title> <dc:type>info:eu-repo/semantics/article</dc:type> </oai_dc:dc>