ORGANIC LIGHT EMITTING DIODES USED IN BIOMEDICAL FIELD

 Abstract: Organic light-emitting diodes (OLEDs) are commonly employed in contemporary TVs and smartphone screens as solid-state light sources based on amorphous organic semiconductors. OLEDs have drawn interest as light sources for small and "invisible" biomedical devices that utilise light to probe, image, alter, or treat biological matter because of the significant advancements in stability, efficiency, and brightness made during the past three decades. In this situation, OLEDs' inherent mechanical flexibility and compatibility with a wide range of substrates and geometries are particularly advantageous. Review of recent developments in the creation and utilisation of OLEDs for biomedical applications. These pose certain needs, which are outlined and contrasted with the state of the art, especially in terms of brightness