Sumitomo Chemical Company, Limited

Cambridge Display Technology Limited

Fredrik Jakobsson

Jonathan Nigel Pillow

Christian Nielsen

Natasha M J Conway

Matthew Roberts

Thomas Pounds

Sophie Barbara Heidenhain

Michael Cass

Francesco Distasio

Edward Snedden

Light-emitting composition and devices including the same, the composition including a fluorescent light-emitting material and a polymer having a conjugating repeat unit and a non-conjugating repeat unit in a backbone of the polymer, and in which the conjugating repeat unit provides at least one conjugation path between repeat units linked to it; the non-conjugating repeat unit reduces conjugation of the polymer as compared to a polymer in which the non-conjugating repeat unit is absent; and a triplet excited state energy level of the light-emitting material is higher than a triplet excited state energy level of the non-conjugating repeat unit.

Polymer and organic light-emitting device

A light-emitting composition comprising a mixture of a fluorescent light-emitting material a triplet-accepting copolymer comprising a triplet-accepting repeat unit and a repeat unit of formula (I): wherein A is a divalent group; Rindependently in each occurrence is a substituent; Rin each occurrence is H or a substituent; and x independently in each occurrence is 0, 1, 2 or 3.

Organic light-emitting composition, device and method

A polymer comprising a repeat unit of formula (I): (I) wherein Arand Areach independently represent a substituted or unsubstituted aryl or heteroaryl group; Sp represents a spacer group comprising a chain of at least 2 aliphatic carbon atoms spacing Arfrom Ar; m is at least 1; and if m is greater than 1 then &#x2014;(Ar)m forms a linear or branched chain of Argroups in which Arin each occurrence may be the same or different. 

Fluorene containing copolymer used in light emitting devices

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Cambridge, United Kingdom

Fredrik Jakobsson