Koninklijke Philips Corporation N.v.

Marijn Goes

Jan Willem Verhoeven

Johannes Willem Hofstraat

The invention pertains to a non-fluorescent label which is suitable for making a charge-transfer fluorescent probe having a donor-bridge-acceptor structure, characterized in that the label comprises a maleimide moiety and the donor-bridge-acceptor structure, wherein the bridge is a group which leads to an all-trans orbital coupling of the donor and the acceptor, and the donor-bridge-acceptor structure has a higher energy charge-transfer emissive state than at least one non-emissive state of part of the label comprising the maleimide moiety, which non-emissive state must have a higher energy than the charge-transfer emissive state of the donor-bridge-acceptor structure after coupling of the maleimide moiety to a suitable system.

Label for making a charge-transfer fluorescent probe

A description is given of an electroluminescent device ( ) comprising an active layer ( ) of an organic charge-transfer compound having a donor-bridge-acceptor structure in a polymer matrix. A blue emitting EL device may be formed having a high electroluminescent intensity and increased stability.

Electroluminescent device

An electroluminescent device ( ) comprising an active layer ( ) of an organic charge-transfer compound having a donor-bridge-acceptor structure in a polymer matrix. A blue emitting EL device may be formed having a high electroluminescent intensity and increased stability.

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Amsterdam, Netherlands

Marijn Goes