Sumitomo Chemical Company, Limited

Cambridge Display Technology Limited

Sumitomo Chemical Companylimited

Sumitomo Chemical Company, Limtied

Cambridge Display Teclmology Limited

Kiran Timothy Kamtekar

Florence Bourcet

Annette Steudel

Martin Humphries

Ruth Pegington

James Morey

Thomas Kugler

Chizu Sekine

Matthew Roberts

William Tarran

Makoto Anryu

Hidenobu Kakimoto

Sheena Zuberi

Sophie Barbara Heidenhain

Natasha M Conway

Satoshi Mikami

Nir Yaacobi-Gross

Tania Zuberi

Michael Cass

Martina Pintani

Daniel Tobjork

James Lee

Philip Stackhouse

Elena Hojas Garcia

Sophie Jones

Annette Regine Steudel

Jonathan Behrendt

Sophie Heidenhain

Martin John Humphries

A compound of formula (I): EAG-EDG-EAG (I) wherein EDG is an electron-donating group comprising a polycyclic heteroaromatic group and each EAG is an electron-accepting group of formula (II): (II) wherein Rin each occurrence is H or a substituent; --- is a bond to EDG; and each X-Xis independently CRor N wherein Rin each occurrence is H or a substituent, with the proviso that at least one occurrence of at least one of X-Xis N. The compound may be used as an acceptor in a bulk heterojunction layer of an organic photodetector.

Photoactive compound

A composition comprising an electron acceptor material and an electron donor material wherein the electron acceptor material is a compound of formula (I): EAG-EDG-EAG (I) wherein each EAG is an electron-accepting group and EDG is a group of formula (II): (II) wherein: n is at least 1; each m is independently 0 or at least 1; each X, Y and A is independently O, S or Se; Z, independently in each occurrence if n is greater than 1, is O, S, C═O or NRwherein Ris H or a substituent; and R-Rare each independently selected from H or a substituent. The composition may be used as photosensitive organic layer of an organic photodetector.

Molecular materials based on phenoxyazine core for heterojunction organic solar cells

An organic photodetector comprising a photosensitive organic layer comprising an electron donor and an electron acceptor wherein the electron acceptor is a compound of formula (I):EAG-EDG-EAG  (I)wherein each EAG is an electron accepting group; and EDG is an electron-donating group of formula (II) or (III): A photosensor may comprise the organic photodetector and a light source, e.g. a near infra-red light source.

Organic photodetector

A composition comprising a light-emitting material having a photoluminescent spectrum with a peak wavelength of more than 600 nm and material comprising a group of formula (I): wherein 1 2 3 4 Ar, Ar, Arand Arare each independently a C6-20 aryl group which is unsubstituted or substituted with one or more substituents, Arindependently in each occurrence is a heteroarylene group or a Carylene group which is unsubstituted or substituted with one or more substituents, and m is 0, 1, 2 or 3. The composition may be used in an organic light-emitting device. 

Light-emitting composition

A compound of formula (I):EAG-EDG-EAG&#x2003;&#x2003; (I)wherein each EAG is an electron accepting group; and EDG is an electron-donating group of formula (IIa): The compound of formula (I) may be used in a photosensitive layer of an organic photodetector wherein the photosensitive layer comprises the compound of formula (I) and an electron donor. A photosensor may comprise the organic photodetector and a light source, e.g. a near infra-red light source.

A fluorescent infrared emitting composition comprising a mixture of a first material and a second material wherein the first material is a fluorescent infrared material and the second material is a fluorescent material having a higher photoluminescent quantum yield (PLQY) and shorter peak wavelength than the infrared emitting material. The composition may be used as the light-emitting layer of an organic light-emitting device.

Fluorescent infrared emitting composition

A compound of formula (I) or (III) (Formulae (I), (III)) wherein: one Y is a substituent Rbound directly to the fluorene unit of formula (I) by an sp-hybridised carbon atom; the other Y is an aryl or heteroaryl group Arthat may be unsubstituted or substituted with one or more substituents; Aris an arylene or heteroarylene group; Ris a substituent; b is 0, 1, 2, 3 or 4; c is 0, 1, 2 or 3; and X is a group of formula (II): (Formula (II)) wherein Z is O or S; Rindependently in each occurrence is a substituent; each x is independently 0, 1, 2 or 3; and * is a bond to the fluorene unit of formula (I). The compounds may be used as host materials for phosphorescent dopants in organic light-emitting devices. 

Compound, composition and organic light-emitting device

A compound of formula (I) wherein Z is a group of formula (II) and Core is selected from groups of formula (IIIa) or (IIIb) wherein X is S or O; Ris a substituent; n is 0 or a positive integer; Arindependently in each occurrence is an arylene group; Ris a substituent; Ris a substituent; Ris an arylene or heteroarylene group; Y is C or Si; a is 1, 2 or 3; b is 0 or a positive integer; and c is 0 or a positive integer. The compound of formula (I) may be used as a host for a light-emitting dopant in an organic light-emitting device. 

Dibenzofuran and dibenzothiophene derivatives and organic light-emitting devices containing them

A compound of formula (I): wherein M is a transition metal; x is at least 1; z is 0 or a positive integer; Lis a ligand selected from one of ligands (II-A), (II-B); Lis a ligand selected from another of ligands of formulae (II-A), (II-B) and (II-C); and Lis a ligand other than a ligand of formulae (II-A), (II-B) or (II-C): (II-A) (II-B) (II-C) in which each of R-Ris substituent and Ar-Arare each an unsubstituted or substituted aryl or heteroaryl group. The compound of formula (I) may be used as a phosphorescent light-emitting material of an organic light-emitting device. 

Light-emitting compound

A polymer comprising a repeat unit of formula (I): (I) wherein each Arand each Arindependently 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 Armay be linked by a 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. 

Polymer

A cationic nanoparticulate material comprises polymer and a BF, PFor SbFcounterion. A layer of an organic electronic device, such as an organic light-emitting device, comprises the nanoparticulate material dispersed in an organic semiconducting layer.

Nanoparticles

A material substituted with a group of formula (I): wherein: Aris an aryl or heteroaryl group; Sprepresents a first spacer group; n1 is 0 or 1; m1 is 1 if n1 is 0 and m1 is at least 1 if n1 is 1; Rindependently in each occurrence is H or a substituent, with the proviso that at least one R1 is a group R11 selected from: alkyl comprising a tertiary carbon atom directly bound to a carbon atom of the cyclobutene ring of formula (I); branched alkyl wherein a secondary or tertiary carbon atom of the branched alkyl is spaced from a carbon atom of the cyclobutene ring of formula (I) by at least one &#x2014;CH&#x2014; group; and alkyl comprising a cyclic alkyl group; or with the proviso that at least two Rgroups are linked to form a ring.

Hole transporting cyclobutene compound

A polymer having a backbone of alternating N atoms and aromatic or heteroaromatic groups including a repeating structure of formula (I) wherein: Rindependently in each occurrence is a substituent; m is 0 or a positive integer; Arand Arare an aryl or heteroaryl group and at least one group selected from Arand Arhas formula (II) wherein: each x is independently 0 or a positive integer; each y is independently 0 or a positive integer, and Rand Rindependently in each occurrence is a substituent.

Polymers comprising amino dihydrophenanthrene repeating units and organic electronic devices using the same

Methods of metal-catalysed polymerisation are described using a metal catalyst of formula (III): wherein Rin each occurrence is independently selected from Calkyl and aryl that may be unsubstituted or substituted with one or more substituents; y is 0 or 2; and Zis an anion. Methods described include Buchwald-type and Suzuki-type polymerisation.

Method of forming polymers

A polymer comprising repeat units of formula (I) and repeat units of formula (II): 

Growing community of inventors

Cambridge, United Kingdom

Kiran Timothy Kamtekar