Organic optoelectrical device and method of fabrication of an organic optoelectronic device

A method of fabricating an organic optoelectrical device comprising:

• depositing a layer of bank material over a subtrate on which at least one first electrode is disposed;
• patterning the layer of bank material to define a plurality of wells;
• depositing a layer of organic semi-conductive material in the wells;
• depositing at least one second electrode over the layer of organic semi-conductive material in the wells;
• and,
• placing an encapsulant over the at least one second electrode, wherein the step of depositing bank material includes providing a layer of the bank material at a periphery of the device, and using a metallic seal to adhere the encapsulant to the layer of bank material at the periphery of the device, the bank material being an inorganic electrically insulating material whereby the substrate, the bank material, the metallic seal, and the encapsulant form a seal at the periphery of the device.

An organic optoelectrical device comprising:

• a substrate;
• at least one first electrode disposed over the substrate;
• a layer of bank material disposed over the first electrode and defining a plurality of wells;
• a layer of organic semi-conductive material disposed in the wells;
• at least one second electrode disposed over the layer of organic semi-conductive material in the wells;
• and,
• an encapsulant disposed over the at least one second electrode, the bank material comprising a fluorinated inorganic electrically insulating material.