Complete polarization of electronic spins in OLEDs

URN to cite this document:: urn:nbn:de:bvb:355-epub-511550
DOI to cite this document:: 10.5283/epub.51155

Scharff, Tobias ; Ratzke, Wolfram ; Zipfel, Jonas

; Klemm, Philippe ; Bange, Sebastian

; Lupton, John M.

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Date of publication of this fulltext: 08 Dec 2021 05:35

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Abstract

At low temperatures and high magnetic fields, electron and hole spins in an organic light-emitting diode become polarized so that recombination preferentially forms molecular triplet excited-state species. For low device currents, magnetoelectroluminescence perfectly follows Boltzmann activation, implying a virtually complete polarization outcome. As the current increases, the ...