Solvent systems for the preparation of photosensitive organic electronic devices
AssigneeSumitomo Chemical Company, Limited
InventorsGianluca Bovo, Nir Yaacobi-Gross
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Abstract
This invention relates to a formulation comprising p-type and n-type organic semiconductors and a solvent mixture comprising an aromatic hydrocarbon substituted with one or more substituents selected from alkyl and alkoxy groups and a unsubstituted or substituted benzothiazole, for example 2-methylbenzothiazole. The formulation may be used to form the photoactive layer (3) of a photosensitive organic electronic device, for example an organic photodetector, comprising an anode (2) a cathode (4) and the photoactive layer between the anode and the cathode.
Claims15
A formulation comprising an n-type organic semiconductor, a p-type organic semiconductor and a solvent mixture wherein the solvent mixture comprises an aromatic hydrocarbon substituted with one or more substituents selected from alkyl and alkoxy groups and a unsubstituted or substituted benzothiazole.
A method of manufacturing an organic photosensitive electronic device comprising an anode, a cathode and a photoactive layer between the cathode and the anode, the method comprising:
- applying the formulation according to any one of the preceding claims by a solution deposition method to form a wet film;
- drying the wet film to provide the photoactive layer;
- and
- forming the other of the anode and cathode over the photoactive layer.
Dependencies are inferred from the claim text.