Abstract: A polymer containing an optionally substituted repeat unit of formula (I) wherein each R is the same or different and represents H or an electron withdrawing group, and each R1 is the same or different and represents a substituent.

Abstract: An organic electronic device structure, the structure comprising: a substrate; a base layer supported by said substrate and defining the base of a well for solvent-based deposition of organic electronic material; one or more spacer layers formed over said base layer; a bank layer formed over said spacer layer to define a side of said well; and wherein an edge of said well adjacent said base layer is undercut to define a shelf over said base layer, said shelf defining a recess to receive said organic electronic material.

Abstract: A monomer for use in manufacturing a conjugated polymer, the monomer having a structure as shown formula (2): Ar1, Ar2 and Ar3 are independently selected from optionally substituted aryl or heteroaryl, X1 and X3 both independently comprise a leaving group capable of participating in polymerisation and Z represents a direct bond or an optionally substituted bridging atom.

Abstract: A method is provided to produce an opto-electronic device comprising a substrate, a first electrode layer, a second electrode layer of opposite polarity to said first electrode layer, any interlayers and, between said first and second electrode layers, a first functional material in interfacial contact with a second functional material, wherein the first functional material has the structure of a laterally porous film and the second functional material is a film disposed over and interpenetrating with the film of the first functional material.