Fluoroalkylfluorene derivatives
AssigneeLomox Limited
InventorsLuke William Judd, Matthew Phillip Aldred, Gene Carl Koch
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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.
Claims20
A device comprising a polymer comprising 2,7-disubstituted 9,9-fluoroalkyl fluorene repeat units, wherein the device has a plurality of charge transport layers and/or emissive layers that contain 2,7-disubstituted 9,9-fluoroalkyl fluorene diradicals 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.
A device comprising:
- a polymer comprising 2,7-disubstituted 9,9-fluoroalkyl fluorene repeat units 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;
- an interface between a hole transporting layer and an electron transporting layer wherein at least one of said layers contains said 2,7-disubstituted 9,9-fluoroalkyl fluorene diradicals, optionally wherein the device is a photovoltaic device or a thin film transistor (TFT) device;
- and
- two or more 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.
Dependencies are inferred from the claim text.