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Development of high mobility p-type polymers with crosslinking functionality to facilitate OSC layer integrity when acting as charge transport layers in devices

Merck has further developed air-stable p-type organic semiconductors, which are amorphous in nature and therefore charge motilities are isotropic. Motilities achieved are in the 10-3 - 10-2 cm2/v.s region. A synthetic route to the attachment of cross-linkable groups to the materials has also been developed, although the cross-linking conditions remain to be optimised. The technology should facilitate OSC layer integrity in multi-layer emissive devices.

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Merck Chemicals Ltd
Hexagon House, Blackley
United Kingdom
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