Multilayer Organic Device
AssigneeThorn Lighting Limited
InventorsAndrew Monkman, Hameed Al-Attar
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Abstract
In a multilayer organic device (10) comprising a substrate bearing an anode (12) and a cathode (20), wherein located between the anode (12) and the cathode (20) is at least a first layer (16) comprising a first organic semiconductor material; and a second layer (18) over the first layer (16) comprising a second organic semiconductor material; the first organic semiconductor material is a polymer and the second organic material is a polymer or an oligomer, the average molecular weight of the first organic semiconductor material being higher than the average molecular weight of the second organic semiconductor material.
Claims20
A multilayer organic device (10) comprising a substrate bearing an anode (12) and a cathode (20), wherein located between the anode (12) and the cathode (20) is at least a first layer (16) comprising a first organic semiconductor material;
- and a second layer (18) over the first layer (16) comprising a second organic semiconductor material;
- characterised in that the first organic semiconductor material is a polymer and the second organic material is a polymer or an oligomer, the average molecular weight of the first organic semiconductor material being higher than the average molecular weight of the second organic semiconductor material.
A method of fabricating a multilayer organic device (10) comprising providing a substrate, depositing an anode (12) over the substrate and by a solution processing step depositing over the anode (12) at least a first layer (16) comprising a first organic semiconductor material and a second layer (18) over the first layer (16) comprising a second organic semiconductor material;
- characterised in that the first organic semiconductor material is a polymer and the second organic material is a polymer or an oligomer, the average molecular weight of the first organic semiconductor material being higher than the average molecular weight of the second organic semiconductor material.
Dependencies are inferred from the claim text.