Optical device
AssigneeCambridge Display Technology Limited
InventorsNalinkumar Patel, Mark Leadbeater, Craig Murphy
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Abstract
The disclosure relates to a method of forming an optical device including the steps of (i) providing a substrate carrying a first electrode capable of injecting or accepting charge carriers of a first type; (ii) depositing a polyfluorene over the first electrode; and (iii) forming over the polyfluorene a second electrode capable of injecting or accepting charge carriers of a second type, wherein the polyfluorene is heated before and after forming the second electrode. The disclosure has particular application in the preparation of organic light emitting devices.
Claims24
A method of forming an optical device comprising the steps of:
- providing a substrate carrying a first electrode capable of infecting or accepting charge carriers of a first type;
- depositing a polyfluorene over the first electrode;
- and
- forming over the polyfluorene a second electrode capable of injecting or accepting charge carriers of a second type,
- and further comprising heating the polyfluorene before and after forming the second electrode.
A method of forming an optical device comprising the steps of:
- providing a substrate carrying a first electrode capable of injecting or accepting charge carriers of a first type;
- depositing an organic semiconductor over the first electrode;
- and
- forming over the organic semiconducting materiel a second electrode capable of injecting or accepting charge carriers of a second type, and further comprising heating the organic semiconductor below its glass transition temperature before end after forming the second electrode.
Dependencies are inferred from the claim text.