Homogeneously bright, flexible and foldable lighting devices with\n functionalised graphene electrodes

2016/06/17 by Elías Torres Alonso, Alonso, Elias Torres, George Karkera +7
Engineering · Materials Science · #Advanced Sensor and Energy Harvesting Materials #FOS: Physical sciences #Graphene research and applications #Materials Science (cond-mat.mtrl-sci) #Molecular Junctions and Nanostructures #Nanowire Synthesis and Applications

paper · pdf · doi:10.48550/arxiv.1606.05482

openalex publication_date 2016/06/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Alternating current electroluminescent technology allows the fabrication of\nlarge area, flat and flexible lights. Presently the maximum size of a\ncontinuous panel is limited by the high resistivity of available transparent\nelectrode materials causing a visible gradient of brightness. Here, we\ndemonstrate that the use of the best known transparent conductor\nFeCl₃-intercalated few-layer graphene boosts the brightness of\nelectroluminescent devices by 49 % compared to pristine graphene. Intensity\ngradients observed for high aspect ratio devices are undetectable when using\nthese highly conductive electrodes. Flat lights on polymer substrates are found\nto be resilient to repeated and flexural strains.\n

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