Breaking the Efficiency Limit of Deep‐Blue Fluorescent OLEDs Based on Anthracene Derivatives (Adv. Mater. 1/2022). Issue 1 (7th January 2022)

• Record Type: Journal Article
• Authors: Lim, Hyoungcheol; Woo, Seung‐Je; Ha, Yeon Hee; Kim, Yun‐Hi; Kim, Jang‐Joo
• Is Part Of: Advanced materials. Volume 34:Issue 1(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-01-07
• Subjects: deep‐blue fluorescent organic light‐emitting diodes -- efficiency enhancement layers -- efficiency roll‐off -- organic light‐emitting diodes -- triplet–triplet annihilation; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.202270002
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : Organic Light‐Emitting Diodes Triplet exciton harvesting via triplet–triplet annihilation, is known to generate only 40% of the total radiative excitons in organic light‐emitting diodes (OLEDs) theoretically. In article number 2100161, Yun‐Hi Kim, Jang‐Joo Kim, and co‐workers realize a total radiative exciton ratio of nearly 50% with a carefully designed anthracene derivative and device structure, breaking the theoretical efficiency limit of OLEDs based on anthracene derivatives.