In 2018, measurements of electrical current fluctuations in high-quality graphene suggested that its electrons could reach a nonequilibrium state favorable to light emission via electroluminescence.
Notes on verification
Matches the Andersen et al. Science 2019 paper on electron-phonon Cerenkov instability in ultraclean graphene, detected via current noise measurements. Corroborated by multiple independent sources tracing to the same study, but publication date is 2019, not 2018 as claimed; the 2018 attribution likely refers to when the research/measurements were conducted. [cascade flags: aggregator_dropped_primary_exists | tier=silver indep_score=1.0 clusters=3 claim_tier=notable | kind=attributed eligibility=medium]
Sources
- L’électroluminescence du graphène, une découverte inattendue (seed:science_and_space)
- https://www.science.org/doi/10.1126/science.aaw2104 (corroboration)
- https://science.sciencemag.org/content/364/6436/154.editor-summary (corroboration)
- https://kim.physics.harvard.edu/publications/electron-phonon-instability-graphene-revealed-global-and-local-noise-probes (corroboration)