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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