Challenges and developments for the blue perovskite nanocrystal light-emitting diodes

Abstract

Perovskite nanomaterials have been highly thought as next-generation light emitters after recent development, owing to their benefits of simple synthesis, low-cost, large-area, and wide color gamut. Encouragingly, the external quantum...

Shape-controlled synthesis of CsPbBr3 nanorods with bright pure blue emission and high stability

“…[5][6][7] However, as one of the three primary colors, pure blue PeLEDs still lag behind the red and green PeLEDs due to the low photoluminescence quantum yield and poor stability of the blue perovskite emission layer. 8,9 Despite the EQE of sky-blue PeLEDs reaching 18% at 480 nm, 10 sky-blue emission cannot meet the full color display requirements for the Rec.2020 standards. 11 Therefore, precisely controlled synthesis of a pure blue perovskite emission layer is essential for high-performance pure-blue PeLEDs and meeting commercial display standards.…”