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arXiv · 1508.03475

Exciton Recombination in One-Dimensional Organic Mott Insulators

Zala Lenarčič·Martin Eckstein·Peter Prelovšek
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Abstract

We present a theory for the recombination of (charged) holons and doublons in one-dimensional organic Mott insulators, which is responsible for the decay of a photoexcited metallic state. Due to the charge-spin separation, the dominant mechanism for recombination at low density of charges involves a multi-phonon emission. We show that a reasonable coupling to phonons is sufficient to explain the fast recombination observed by pump-probe experiments in ET-F$_2$TCNQ, whereby we can also account for the measured pressure dependence of the recombination rate.

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Zala Lenarčič, Martin Eckstein, Peter Prelovšek. 2015-08-14. Exciton Recombination in One-Dimensional Organic Mott Insulators. https://doi.org/10.1103/physrevb.92.201104

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