Method for forming films or layers
AssigneeSouth Bank University Enterprise Ltd.
InventorPoopathy Kathirgamanathan
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Abstract
An improved method for forming films of organic-metallic complexes in which an organic complex and a labile metal salt are vaporised together or sequentially and the vapour condensed on to a substrate to form a film or layer of the organic-metallic complex on the substrate. The method produces electroluminescent films with improved performance.
Claims13
A method for forming a layer of an organic-metallic complex on a substrate which comprises vaporising at least one labile metal compound selected from the group consisting of salts of a transition metal, salts of lanthanides, salts of actinides, organic-metallic compounds of transition metals, organic-metallic compounds of lanthanides and organic-metallic compounds of actinides together with at least one organic complex, and condensing the vapour on to a substrate to form a layer or the organic-metallic complex on the substrate the layer having improved luminous efficiency.
A method as claimed in claim, 9 in which the organo-metallic complex is selected from the group consisting of Th, Y, Eu, Dy, and Sm complexes of tripyridyl and TMDH;
- thorium bathophen;
- yttrium tripyridyl and TMHD;
- europium (III) (TMHD)3;
- terbium (TMHD)3 OPNP;
- europium (II) (TMHD)2 and europium (II) (TMHD)2 OPNP.
A method for forming a layer of an organic-metallic complex on a substrate which comprises sequentially vaporising (i) a labile metal compound selected from the group consisting of salts of transition metals, salts of lanthanides, salts of actinides, organic-metallic compounds of transition metals, organic-metallic compounds of lanthanides and organic-metallic compounds of actinides and (ii) an organic complex and condensing the vapors on to a substrate to form a layer of the organic-metallic complex on the substrate, they layer having improved luminous efficiency.
Dependencies are inferred from the claim text.