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Abstract
Physical reservoir computing aims to increase computational efficiency of machine learning tasks by shifting the computational burden to a physical system. Reservoirs based on ion dynamics are of particular interest due to the non-linear and integrative nature of ion transport. Here, we demonstrate all-optical operation of a physical reservoir based on electrochemical Li-ion doping of lead halide perovskite microcrystals. Optical excitation changes lithium ion insertion kinetics, which in turn modulate the luminescence response. The heterogenous structure of the crystals leads to a large internal state space of the reservoir. The device can be fabricated using solution-based fabrication and operated using LED illumination, reducing fabrication cost. Our proof-of-concept results demonstrate optically excited state dynamics and ion transport as a promising platform for physical reservoir computing.
Document type: | Preprint |
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Place of Publication: | Heidelberg |
Date Deposited: | 03 Feb 2025 11:54 |
Date: | 2025 |
Faculties / Institutes: | Fakultät für Chemie und Geowissenschaften > Institute of Physical Chemistry The Faculty of Physics and Astronomy > Kirchhoff Institute for Physics |
DDC-classification: | 530 Physics 540 Chemistry and allied sciences 600 Technology (Applied sciences) |