With the rapid development of new display and lighting technologies， the demand for efficient and stable green light emitting devices has been increasing. Perovskite light-emitting diodes （PeLEDs） have demonstrated significant potential in optoelectronic displays and lighting applications， owing to their high luminous efficiency， low fabrication costs， and high color purity. As green light is the most sensitive wavelength band to the human eye， perovskite materials and devices based on green light emission have garnered widespread attention in recent years， achieving notable progress. This paper provides an overview of the crystal structures and fabrication methods of perovskite materials in different dimensions from the perspectives of material synthesis and device optimization. It also summarizes various device optimization strategies for achieving high-performance green PeLEDs. Finally， the paper discusses the current challenges and future development prospects of green PeLEDs.

green perovskite;light-emitting diode;material synthesis;device optimization