Opto-Electrical Devices and Methods of Making the Same
AssigneesCDT Oxford Limited, Sumation Co., Ltd.
InventorsCarl R. Towns, Caroline Towns, Ilaria Grizzi
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Abstract
An opto-electrical device comprising: a first electrode for injecting charge carriers of a first polarity; a second electrode for injecting charge carriers of a second polarity; and a layer of organic material disposed between the first and second electrodes, the layer of organic material comprising a blend of a first charge transporting and/or light-emissive polymer and a second charge transporting and/or light-emissive polymer, wherein at least the first polymer is cross-linked providing a first cross-linked matrix in which the second polymer is disposed.
Claims22
An opto-electrical device comprising:
- a first electrode for injecting charge carriers of a first polarity;
- a second electrode for injecting charge carriers of a second polarity;
- and a layer of organic material disposed between the first and second electrodes, the layer of organic material comprising a blend of a first charge transporting and/or light-emissive polymer and a second charge transporting and/or light-emissive polymer, wherein at least the first polymer is cross-linked providing a first cross-linked matrix in which the second polymer is disposed.
A method of manufacturing an opto-electrical device, the method comprising:
- depositing, on a substrate comprising a first electrode for injecting charge carriers of a first polarity, a mixture of a first and a second polymer in a solvent;
- cross-linking the first polymer to form a first cross-linked matrix in which the second polymer is disposed;
- and
- depositing a second electrode for injecting charge carriers of a second polarity.
A method of manufacturing an opto-electrical device, the method comprising:
- depositing, on a substrate comprising a first electrode for injecting charge carriers of a first polarity, a first polymer in a first solvent;
- depositing, over the first polymer material, a second polymer in a second solvent;
- waiting a period of time to allow the first and second polymer materials to inter-mix at least partially;
- cross-linking the first and/or the second polymers to form an interpenetrating or semi-interpenetrating network;
- and
- depositing a second electrode for injecting charge carriers of a second polarity.
A method of manufacturing an opto-electrical device, the method comprising:
- depositing, over a substrate comprising a first electrode for injecting charge carriers of a first polarity, a first charge transporting and/or light-emissive polymer;
- partially crosslinking said first polymer depositing a charge transporting and/or light-emissive material over said partially crosslinked first polymer;
- further crosslinking said first polymer;
- and
- depositing a second electrode for injecting charge carriers of a second polarity.
An opto-electrical device comprising:
- a first electrode for injecting charge carriers of a first polarity;
- a second electrode for injecting charge carriers of a second polarity;
- and a layer of organic material disposed between the first and second electrodes, the layer of organic material comprising a blend of a first charge transporting material and a second charge transporting material, wherein at least one of the first and second charge transporting materials comprises a cross-linked polymer.
Dependencies are inferred from the claim text.