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US 10,084,137 B2Granted
Fluoroalkylfluorene derivatives
AssigneeLomox Limited
InventorsLuke William Judd, Matthew Phillip Aldred, Gene Carl Koch
Life of this patent
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Abstract
Compounds of the formula D-S1-A-S2—B1 wherein A comprises a 2,7-disubstituted 9,9-fluoroalkyl fluorene diradical of the formula wherein S1, S2, D and B1 have meanings given in the description that are useful as charge transport and emissive materials for the fabrication of electronic devices such as diodes, transistors, and photovoltaic devices.
Claims18
A device comprising a polymer comprising 2,7-disubstituted 9,9-fluoroalkyl fluorene repeat units of the formula
- wherein R represents a straight chain or branched achiral C1-C14 alkyl, C1-C14 haloalkyl or C2-C14 alkenyl group, optionally wherein 1, 2, 3, 4 or 5 of the methylene groups of R are replaced by an oxygen atom provided that no acetal, ketal, peroxide or vinyl ether is present, and partially or fully fluorinated derivatives of these groups;
- wherein the device has a plurality of charge transport layers and/or emissive layers that contain the 2,7-disubstituted 9,9-fluoroalkyl fluorene repeat units;
- wherein the layers are in the form polymerized patterned structures formed by exposure to radiation patterns;
- and
- wherein the device contains two or more of the polymerized patterned structures, said structures being comprised of materials that are electroluminescent in nature, wherein the wavelength of electroluminescence emitted by one patterned structure is different from the wavelength of electroluminescence emitted by at least one other patterned structure.
2 more elements
Dependencies are inferred from the claim text.