Blue Perovskite LEDs: Reducing Architecture Limitations for Efficient Blue Perovskite Light‐Emitting Diodes (Adv. Mater. 20/2018). Issue 20 (14th May 2018)

• Record Type: Journal Article
• Authors: Gangishetty, Mahesh K.; Hou, Shaocong; Quan, Qimin; Congreve, Daniel N.
• Is Part Of: Advanced materials. Volume 30:Issue 20(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-05-14
• Subjects: blue LEDs -- device architecture -- perovskite LEDs; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201870137
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : Blue perovskite light‐emitting diodes (LEDs) have lagged significantly behind red and green ones. In article number1706226, Daniel N. Congreve and co‐workers show that the device architecture plays a key role in this lag, and they propose an alternate structure that maintains robust nanocrystal emission. Devices with this architecture show external quantum efficiencies of 0.50% at 469 nm. This architecture enables efficient devices across the entire blue–green portion of the spectrum.