The observed graphene electroluminescence emits light in the mid-infrared range at a wavelength of 6.5 µm.
Notes on verification
Confirmed against CNRS press release and Nature paper (Abou-Hamdan et al. 2025); corroborated by multiple institutional pages and a follow-up conference abstract, but all sources trace back to the same research group and single study, limiting full independence. [tier=gold indep_score=0.838 clusters=4 claim_tier=notable | framework convergence=single on The Nature 2025 paper 'Electroluminescence and energy transfer mediated by hyperbolic polaritons' by the LPENS/Institut Langevin team (upstreams: Abou-Hamdan et al., Nature 639, 909-914 (2025), DOI 10.1038/s41586-025-08627-6) — publishers independent, evidence may not be | kind=empirical eligibility=high]
Sources
- L’électroluminescence du graphène, une découverte inattendue (seed:science_and_space)
- https://www.techno-science.net/en/news/graphene-electroluminescence-an-unexpected-discovery-N26894.html (corroboration)
- https://www.nature.com/subjects/materials-for-optics/nature (corroboration)
- https://www.nature.com/subjects/nanophotonics-and-plasmonics/nature (corroboration)
- https://phantomsfoundation.com/GRAPHENECONF/2026/Abstracts/Grapheneconf2026_Baudin.pdf (corroboration)
- https://www.institut-langevin.espci.fr/electroluminescence_and_energy_transfer_mediated_by_hyperbolic_polaritons?lang=fr (corroboration)