Sumitomo Chemical Company, Limited

Cambridge Display Technology Limited

Philip Stackhouse

Martin Humphries

Jonathan Nigel Pillow

Kiran Timothy Kamtekar

Tomoyasu Yoshida

Ruth Pegington

Sophie Barbara Heidenhain

William Tarran

James Lee

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 copolymer comprising a repeat unit of Formula (I) and at least one further repeat unit: Formula (I) wherein: wherein: Arand Arare each independently selected from aryl and heteroaryl, each of which is independently unsubstituted or substituted with one or more substituents; each R is independently a substituent; each n is independently 0, 1 or 2; each m is independently 0, 1, 2 or 3, and at least one of the repeat units of the polymer is a partially conjugating repeat unit. 

Polymer and device

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Philip Stackhouse