PROCEDE ET APPAREIL DE RECUPERATION DU LAITIER DE METALLURGIE SECONDAIRE ET DE RECYCLAGE DE CELUI–CI DANS UN PROCEDE DE PRODUCTION D'ACIER AU MOYEN D'UN FOUR A ARC ELECTRIQUE
| N° de brevet: |
EP1863942 (A2) |
| Date de publication: |
2007-12-12 |
| Inventeur(s): |
MEMOLI FRANCESCO [IT];BRIONI OSVALDO [IT];BIANCHI FERRI MAURO [IT]; |
| Demandeur(s): |
TECHINT SPA [IT]; |
| Classification: |
C21B3/08;C21C5/52;F27D3/00; |
| N° de demande: |
EP20060724175 20060328 |
| Numéro(s) de priorité: |
WO2006EP03239 20060328;IT2005MI00538 20050401 |
An organic electroluminescent element 1 according to the present invention includes: a substrate 2; a first electrode 3 formed on the substrate; an organic light-emitting layer 5 formed on the first electrode 3 so as to be brought into contact with the first electrode 3; and a second electrode 6 formed on the organic light-emitting layer 5, characterized in that an ion-doped surface onto which hydrogen ions or hydroxide ions are doped as dopant is provided in the vicinity of a contact interface B between the first electrode 3 and the organic light-emitting layer 5. By such characteristics, an organic electroluminescent element can be obtained, in which a low-voltage drive is made possible, and a long lifetime is realized.
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