A composition suitable for use in an organic light-emitting layer (103) of an organic light-emitting device having an anode (101) and a cathode (105), the composition comprising a fluorescent light-emitting material, a first triplet-accepting material and a second triplet-accepting material that is different from the first triplet-accepting material. The fluorescent light-emitting material may be a repeat unit of a light-emitting polymer, and the first and second triplet-accepting materials may independently be repeat units of the light-emitting polymer or may be mixed with the fluorescent light-emitting material.

A composition is provided, including one or more quantum dots and at least one organic emitter. Further, a formulation including the composition, a use of the formulation and a device comprising the composition or formulation is provided.

Resins comprising nanoparticles formed from -conjugated cross-linked polymers are disclosed, together with their methods of manufacture and their applications in light emitting devices.

The present invention generally relates to artificial photosystems and methods of their use, for example in artificial photosynthesis, wherein the artificial photosystems comprise one or more light-harvesting antenna (LHA) comprising a conjugated polyelectrolyte (CPE) complex (CPEC) comprising a donor CPE and an acceptor CPE, wherein the donor CPE and acceptor CPE are an electronic energy transfer (EET) donor/acceptor pair.

A polymer comprising a repeat unit of formula (I): (I) wherein each Ar.sup.1 and each Ar.sup.2 independently represents a substituted or unsubstituted aromatic or heteroaromatic group; each Cy independently represents a saturated heterocyclic or carbocyclic ring that may be unsubstituted or substituted with one or more substituents; n is 1, 2 or 3; and adjacent groups Ar.sup.2 may be linked by Ca divalent linking group in the case where n is 2 or 3. The polymer may be used as a charge-transporting material or light-emitting material in an organic light-emitting device.

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An additive for a light-emitting layer contains a compound represented by formula (1):

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where X is P, C, or S; A is a cyclic hydrocarbon group that may have H, a direct bond, a chain hydrocarbon group, or a heteroatom; R is H or an alkyl group, and a plurality of R may link together to form a ring, and if said ring is formed, at least one R is an alkyl group; m is 0 or 1; r is 1 when X is a phosphorous atom or a carbon atom and 2 when X is a sulfur atom; n is a number represented by 3-m when X is a phosphorous atom, and a number represented by 2-m if X is a carbon atom or a sulfur atom; and p is 1 when m is 0, at least 1 when m is 1, and is a substitutable number in A.

Water-soluble, conjugated polymers containing one or more dibenzosilole monomer residues, as well as compositions, kits, and methods of making and using such polymers are disclosed. Also disclosed are dibenzosilole derivatives substituted with one or more water-solubilizing groups, and methods of making and using such derivatives to prepare water-soluble dibenzosilole polymers.

The present invention relates to polymers comprising structural units having partially fluorinated substituents, to mixtures and formulations comprising the polymers according to the invention, to a process for the preparation of the polymers according to the invention, and to the use of the polymers according to the invention as functional materials in electronic devices.

Water-soluble, conjugated polymers containing one or more dibenzosilole monomer residues, as well as compositions, kits, and methods of making and using such polymers are disclosed. Also disclosed are dibenzosilole derivatives substituted with one or more water-solubilizing groups, and methods of making and using such derivatives to prepare water-soluble dibenzosilole polymers.

The present invention relates to organic copolymers and organic semiconducting compositions comprising these materials, including layers and devices comprising such organic semiconductor compositions. The invention is also concerned with methods of preparing such organic semiconductor compositions and layers and uses thereof. The invention has application in the field of printed electronics and is particularly useful as a semiconducting material for use in formulations for organic thin film transistor (OTFT) backplanes for displays, integrated circuits, organic light emitting diodes (OLEDs), photodetectors, organic photovoltaic (OPV) cells, sensors, memory elements and logic circuits.