What is it about?

Down-conversion, which consists in transforming a single high-energy photon into two lower energy ones, is one of the promising ways of improving solar cell efficiency. Photons from such systems will tend to be emitted in temporally-close pairs, yielding something known as bunched light, which is observed experimentally through correlation measurements. The article proposes a probability-based model allowing for a better understanding of the link between microscopic material properties, down-conversion mechanisms and the results of correlation experiments.

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Why is it important?

By concentrating on the example of down-conversion materials, which are highly relevant for future solar cell research, this work provides the basis for a more general framework for understanding light from a purely photonic point of view.

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This page is a summary of: A Bayesian approach to luminescent down-conversion, The Journal of Chemical Physics, January 2021, American Institute of Physics, DOI: 10.1063/5.0026396.
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