Differentiation between polaron-pair and triplet-exciton polaron spin-dependent mechanisms in organic light-emitting diodes by coherent spin beating

URN to cite this document:: urn:nbn:de:bvb:355-epub-267086
DOI to cite this document:: 10.5283/epub.26708

Baker, W. J. ; McCamey, D. R. ; van Schooten, K. J. ; Lupton, J. M.

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Date of publication of this fulltext: 15 Nov 2012 08:21

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Abstract

Pulsed electrically detected magnetic resonance offers a unique avenue to distinguish between polaron-pair (PP) and triplet-exciton polaron (TEP) spin-dependent recombination, which control the conductivity and magnetoresistivity of organic semiconductors. Which of these two fundamental processes dominates depends on carrier balance: by injecting surplus electrons we show that both processes ...