Abstract
AbstractA new poly(ionic liquid) (Terpy‐PIL) carrying a terpyridine group in each repeating unit of the polymer architecture was readily prepared by polymerization of the monomer (Terpy‐IL), which was initiated by azobis(isobutyronitrile) (AIBN). The obtained poly(ionic liquid) can coordinate and sensitize europium(III) ions through numerous chelating terpyridine moieties, which are linked to the polymer chains. A red‐emitting luminescent material was obtained by the complexation of europium(III) salts with Terpy‐PIL, and the luminescence is due to an energy transfer from the terpyridine moieties to Eu3+ ions. The luminescence performance of the luminescent material based on Terpy‐PIL, for example the 5D0 quantum efficiency and the decay time, is much higher than that of the luminescent material prepared from the monomer Terpy‐IL, which can be ascribed to the confinement of the europium(III)–terpyridine complexes to the polymer architecture.
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