Efficient, narrow-band, and stable electroluminescence from organoboron-nitrogen-carbonyl emitter

Ying-Chun Cheng, Xun Tang, Kai Wang (), Xin Xiong, Xiao-Chun Fan, Shulin Luo, Rajat Walia, Yue Xie, Tao Zhang, Dandan Zhang, Jia Yu, Xian-Kai Chen (), Chihaya Adachi () and Xiao-Hong Zhang ()
Additional contact information
Ying-Chun Cheng: Soochow University
Xun Tang: Kyushu University
Kai Wang: Soochow University
Xin Xiong: Soochow University
Xiao-Chun Fan: Soochow University
Shulin Luo: Soochow University
Rajat Walia: Soochow University
Yue Xie: Soochow University
Tao Zhang: Soochow University
Dandan Zhang: Soochow University
Jia Yu: Soochow University
Xian-Kai Chen: Soochow University
Chihaya Adachi: Kyushu University
Xiao-Hong Zhang: Soochow University

Nature Communications, 2024, vol. 15, issue 1, 1-9

Abstract: Abstract Organic light-emitting diodes (OLEDs) exploiting simple binary emissive layers (EMLs) blending only emitters and hosts have natural advantages in low-cost commercialization. However, previously reported OLEDs based on binary EMLs hardly simultaneously achieved desired comprehensive performances, e.g., high efficiency, low efficiency roll-off, narrow emission bands, and high operation stability. Here, we report a molecular-design strategy. Such a strategy leads to a fast reverse intersystem crossing rate in our designed emitter h-BNCO-1 of 1.79×105 s−1. An OLED exploiting a binary EML with h-BNCO-1 achieves ultrapure emission, a maximum external quantum efficiency of over 40% and a mild roll-off of 14% at 1000 cd·m−2. Moreover, h-BNCO-1 also exhibits promising operational stability in an alternative OLED exploiting a compact binary EML (the lifetime reaching 95% of the initial luminance at 1000 cd m−2 is ~ 137 h). Here, our work has thus provided a molecular-design strategy for OLEDs with promising comprehensive performance.

Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-024-44981-1 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-44981-1

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-024-44981-1

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().