Advances in solution-processed near-infrared light-emitting diodes

Near-infrared light-emitting diodes based on solution-processed semiconductors, such as organics, halide perovskites and colloidal quantum dots, have emerged a viable technological platform for biomedical applications, night vision, surveillance optical communications. The recently gained increased understanding of the relationship between materials structure photophysical properties has enabled design efficient emitters leading to devices with external efficiencies exceeding 20%. Despite considerable strides made, challenges remain in achieving high radiance, reducing efficiency roll-off extending operating lifetime. This Review summarizes recent advances emissive synthetic methods device key attributes that collectively contribute improved performance fabricated devices. A summary near-infrared are by means, coverage organic dots.