Perovskite Light‐Emitting Diodes: High‐Performance Blue Perovskite Light‐Emitting Diodes Enabled by Efficient Energy Transfer between Coupled Quasi‐2D Perovskite Layers (Adv. Mater. 1/2021). Issue 1 (4th January 2021)

• Record Type: Journal Article
• Authors: Ren, Zhenwei; Yu, Jiahao; Qin, Zhaotong; Wang, Jing; Sun, Jiayun; Chan, Christopher C. S.; Ding, Shihao; Wang, Kai; Chen, Rui; Wong, Kam Sing; Lu, Xinhui; Yin, Wan‐Jian; Choy, Wallace C. H.
• Is Part Of: Advanced materials. Volume 33:Issue 1(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-01-04
• Subjects: blue perovskite LEDs -- defect passivation -- energy transfer; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.202170006
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : The coupling of quasi‐2D perovskite layers is demonstrated by Kai Wang, Rui Chen, Wallace C. H. Choy, and co‐workers in article number 2005570 . Their results show that a bifunctional ligand can simultaneously diminish the weak van der Waals gap and passivate perovskite defects for efficient energy transfer and radiative recombination. They fabricate blue PeLEDs that show high performance with an EQE of 10.11% and a long stability of 81.3 min.