Extending the self-discharge time of Dicke quantum batteries using molecular triplets
Abstract
Quantum batteries, quantum systems for energy storage, have gained interest due to their potential scalable charging power density. A quantum battery proposal based on the Dicke model has been explored using organic microcavities, which enable a cavity-enhanced energy transfer process called superabsorption. However, energy storage lifetime in these devices is limited by fast radiative emission losses, worsened by superradiance. Here, we demonstrate a promising approach to extend the energy storage lifetime of Dicke quantum batteries using molecular triplet states. We examine a type of multi-layer microcavities where an active absorption layer transfers energy to the molecular triplets of a storage layer, identifying two regimes based on exciton-polariton resonances. We tested one of these mechanisms by fabricating and characterising five devices across a triplet-polariton resonance. We conclude by discussing potential optimisation outlooks for this class of devices.
Keywords
Cite
@article{arxiv.2404.00198,
title = {Extending the self-discharge time of Dicke quantum batteries using molecular triplets},
author = {Daniel J. Tibben and Enrico Della Gaspera and Joel van Embden and Philipp Reineck and James Q. Quach and Francesco Campaioli and Daniel E. Gómez},
journal= {arXiv preprint arXiv:2404.00198},
year = {2025}
}
Comments
9 pages, 5 figures. 6 supplementary pages, 4 supplementary figures