Óxido misto de ítrio-alumínio dopado com Eu(III) Eu(III)-doped aluminium yttrium oxide
<abstract language="eng">In this work, we report the synthesis and the photoluminescence features of Eu(III)-doped yttrium-aluminium oxide obtained by non-hydrolytic sol-gel routes. After heating the powders above 600 ºC the XRD patterns show the presence of the Y4Al2O9 (YAM) and Y3A...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2005-03-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000200014 |
| _version_ | 1819211985876680704 |
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| author | Eduardo J. Nassar Lilian R. Avila Paula F. S. Pereira Omar J. de Lima Lucas A. Rocha Cesar Mello Katia J. Ciuffi Luis D. Carlos |
| author_facet | Eduardo J. Nassar Lilian R. Avila Paula F. S. Pereira Omar J. de Lima Lucas A. Rocha Cesar Mello Katia J. Ciuffi Luis D. Carlos |
| author_sort | Eduardo J. Nassar |
| collection | DOAJ |
| description | <abstract language="eng">In this work, we report the synthesis and the photoluminescence features of Eu(III)-doped yttrium-aluminium oxide obtained by non-hydrolytic sol-gel routes. After heating the powders above 600 ºC the XRD patterns show the presence of the Y4Al2O9 (YAM) and Y3Al5O12 (YAG) phases. At 800 and at 1500 ºC the PL spectra display the Eu(III) lines characteristic of the YAM monoclinic phase. The 5D0->7F2 transition is favored relatively to the 5D0->7F1 lines. However, at 1100 ºC the cubic YAG is the preferential phase and the 5D0->7F1 transition dominates the spectrum. The Eu(III) ions lie in a centrosymmetrical site. The different solvents used in the sol-gel synthesis also change the relative proportion between these two phases. This is monitored analyzing the modifications in the relative intensity between the 5D0->7F2 and the 5D0->7F1 transitions. |
| first_indexed | 2024-12-23T06:35:47Z |
| format | Article |
| id | doaj.art-c8dd036ab61e42b5af9632e7ce135be4 |
| institution | Directory Open Access Journal |
| issn | 0100-4042 1678-7064 |
| language | English |
| last_indexed | 2024-12-23T06:35:47Z |
| publishDate | 2005-03-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-c8dd036ab61e42b5af9632e7ce135be42022-12-21T17:56:48ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642005-03-0128223824310.1590/S0100-40422005000200014Óxido misto de ítrio-alumínio dopado com Eu(III) Eu(III)-doped aluminium yttrium oxideEduardo J. NassarLilian R. AvilaPaula F. S. PereiraOmar J. de LimaLucas A. RochaCesar MelloKatia J. CiuffiLuis D. Carlos<abstract language="eng">In this work, we report the synthesis and the photoluminescence features of Eu(III)-doped yttrium-aluminium oxide obtained by non-hydrolytic sol-gel routes. After heating the powders above 600 ºC the XRD patterns show the presence of the Y4Al2O9 (YAM) and Y3Al5O12 (YAG) phases. At 800 and at 1500 ºC the PL spectra display the Eu(III) lines characteristic of the YAM monoclinic phase. The 5D0->7F2 transition is favored relatively to the 5D0->7F1 lines. However, at 1100 ºC the cubic YAG is the preferential phase and the 5D0->7F1 transition dominates the spectrum. The Eu(III) ions lie in a centrosymmetrical site. The different solvents used in the sol-gel synthesis also change the relative proportion between these two phases. This is monitored analyzing the modifications in the relative intensity between the 5D0->7F2 and the 5D0->7F1 transitions.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000200014YAGEu IIIsol-gel |
| spellingShingle | Eduardo J. Nassar Lilian R. Avila Paula F. S. Pereira Omar J. de Lima Lucas A. Rocha Cesar Mello Katia J. Ciuffi Luis D. Carlos Óxido misto de ítrio-alumínio dopado com Eu(III) Eu(III)-doped aluminium yttrium oxide Química Nova YAG Eu III sol-gel |
| title | Óxido misto de ítrio-alumínio dopado com Eu(III) Eu(III)-doped aluminium yttrium oxide |
| title_full | Óxido misto de ítrio-alumínio dopado com Eu(III) Eu(III)-doped aluminium yttrium oxide |
| title_fullStr | Óxido misto de ítrio-alumínio dopado com Eu(III) Eu(III)-doped aluminium yttrium oxide |
| title_full_unstemmed | Óxido misto de ítrio-alumínio dopado com Eu(III) Eu(III)-doped aluminium yttrium oxide |
| title_short | Óxido misto de ítrio-alumínio dopado com Eu(III) Eu(III)-doped aluminium yttrium oxide |
| title_sort | oxido misto de itrio aluminio dopado com eu iii eu iii doped aluminium yttrium oxide |
| topic | YAG Eu III sol-gel |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000200014 |
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