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Complete polarization of electronic spins in OLEDs

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Scharff, Tobias ; Ratzke, Wolfram ; Zipfel, Jonas ; Klemm, Philippe ; Bange, Sebastian ; Lupton, John M.
License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 08 Dec 2021 05:35


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 ...


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