In the graphene/boron nitride stack, near-field electromagnetic energy transfer via hyperbolic phonon-polaritons was found to account for up to 75% of the electrical power injected into the device, becoming the dominant energy transfer mechanism.
Notes on verification
Confirmed via peer-reviewed Nature paper (Abou-Hamdan et al. 2025) and consistent institutional press releases (CNRS/ESPCI/Institut Langevin). Figure evolved slightly from ~71% in 2023 preprint to 75% in final publication, consistent with normal peer review refinement. All corroborating sources trace to the same underlying study, limiting true independence.
Sources
- L’électroluminescence du graphène, une découverte inattendue (inp.cnrs.fr)
- https://www.nature.com/articles/s41586-025-08627-6 (nature.com)
- https://www.espci.psl.eu/fr/actualites/2025/le-graphene-emet-de-la-lumiere-au-dela-de-l (espci.psl.eu)
- https://pontlevis.institut-langevin.espci.fr/electroluminescence_and_energy_transfer_mediated_by_hyperbolic_polaritons?lang=fr (pontlevis.institut-langevin.espci.fr)
- https://www.techno-science.net/actualite/electroluminescence-graphene-decouverte-inattendue-N26894.html (techno-science.net)
- https://ar5iv.labs.arxiv.org/html/2310.08351 (ar5iv.labs.arxiv.org)