Electroluminescent materials for edge emitters

An edge emitting electroluminescence device, comprising:

• an emitting layer composed of a host material doped with at least one dopant, said at least one dopant being a lanthanide and having one of a 3+ oxidation state and a 2+ oxidation state;
• a pair of dielectric layers sandwiching said emitting layer;
• and
• a pair of conductive layers sandwiching said dielectric layers and said emitting layer;
• said host material having at least two cations selected from the Group II elements and at least one anion selected from the Group VIA elements, said at least two cations being one of (Cd.sup.2+, Zn.sup.2+) and (Mg.sup.2+, Ca.sup.2+ Sr.sup.2+), said at least one anion being one of (S.sup.2-) and (Se.sup.2-, S.sup.2-).

An edge emitting electroluminescence device, comprising:

• an emitting layer composed of a host material doped with a first dopant;
• a pair of dielectric layers sandwiching said emitting layer;
• and
• a pair of conductive layers sandwiching said dielectric layers and said emitting layer;
• said host material having at least two cations selected from the Group II elements and at least one anion selected from the Group VIA elements, said at least two cations being selected from (Mg.sup.2+, Ca.sup.2+, Sr.sup.2+), said at least one anion being selected from (S.sup.2-) and (Se.sup.2-, S.sup.2-);
• said first dopant being selected from the rare earth elements.