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Conjugated Polymer Exhibits Phosphorescence

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Richard Gaughan

Conjugated polymers are a class of materials that hold promise as a basis for electro-optical applications, but that promise has been blunted by the fact that electrical injection creates a substantial proportion of long-lived dark states. Now metallic contamination in ladder-shaped poly(para-phenylene) polymer (LPPP) has been shown to display electrically induced phosphorescence. When two monomers assemble into the poly(para-phenylene) structure shown here and the units combine into a long, ladderlike structure, triplet excitons travel along the "ladder" to a metal atom, where they...Read full article

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    Published: December 2002
    energyMaterialsResearch & Technology

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