Patent ID: 11968885
Assignee: SUMITOMO CHEMICAL COMPANY LIMITED
Field: nan (nan)
Classification: CPC H  Y | IPC H

Claim 13:
14. A method of manufacturing an organic photodetector, the method comprising:
depositing a first formulation on a substrate to form a first wet film over a cathode, wherein the cathode is coupled with the substrate and the first formulation comprises an organic electron donor and an organic electron acceptor dissolved in a first solvent or a first solvent mixture, wherein the first solvent or solvent mixture comprises 1,3,5-trimethoxybenzene;
drying the first wet film to provide a photoactive layer comprising the organic electron donor and the organic electron acceptor;
depositing a second formulation onto the photoactive layer to form a second wet film, wherein the second formulation comprises an electron blocking compound dissolved in a second solvent or a second solvent mixture and the electron blocking compound comprises a compound having a formula according to General Formula (I):

[M]a+[X]a−   (General Formula (I)), where M is a metal; X is CN, SCN, SeCN or TeCN; and a is at least 1;
drying the second wet film to provide the electron blocking layer;
forming the anode over the electron blocking layer;
drying the second wet film to provide an electron blocking layer comprising the electron blocking compound;
forming an anode over the electron blocking layer; and
connecting the organic photodetector to a voltage source configured to apply a reverse bias to the organic photodetector.