Perovskite-Based Light-Emitting Diodes

Metal halide perovskitesMetal halide perovskite (MHP) (MHPsMetal halide perovskite (MHP)) have gathered a lot of attention to the researchers as highly promising semiconductor materials for a wide range of optical and electrical device applications, owing to their cost-effectiveness and exceptional optoelectronic characteristics. As one of the most significant application, Perovskite-based light emitting diodes (PeLEDsPerovskite LEDs (PeLEDs)) have emerged as a promising candidate for next-generation display technologies due to their unique properties, including high defect tolerant, tunable emission spectra, near unity photoluminescence quantum yield (PLQY)Photoluminescence quantum yield (PLQY), better color purity, narrow emission spectra, suitable solution processability, and versatility. In addition to their distinctive properties, the effectiveness of PeLEDsPerovskite LEDs (PeLEDs) is significantly influenced by challenges such as low exciton binding energyExciton binding energy, defects at grain boundariesGrain boundary (GB), balancing of carrier injection, and proper energy band alignmentAlignment. These issues must be carefully addressed to enhance the overall performance of PeLEDsPerovskite LEDs (PeLEDs). This book chapter provides a concise overview of the key aspects of PeLEDsPerovskite LEDs (PeLEDs), encompassing their fundamental properties, and current research trends. It also explores the recent progress in device architectureDevice architecture, including strategies to enhance stabilityStability, luminance, and to reduce toxicityToxicity. Additionally, the integration of perovskite materialsPerovskite materials into PeLEDsPerovskite LEDs (PeLEDs) for various applications, ranging from display technologies to lighting, is discussed. The challenges and opportunities in the commercializationCommercialization of PeLEDsPerovskite LEDs (PeLEDs) are highlighted, emphasizing the need for continued research to address scale-up production processes and their potential to revolutionize the landscape of future optoelectronic devices.