Deep Blue Organic Light-Emitting Diodes Based on [7,7-Dimethyl-9-(10-phenylanthracen-9-yl)-7H-Indeno[1,2-f] Isoquinoline] Derivatives

Jinho Park; Beomsu Jang; Yu Ji Moon; Hakjun Lee; Young Kwan Kim; Seung Soo Yoon

doi:10.1166/jnn.2020.18759

Deep Blue Organic Light-Emitting Diodes Based on [7,7-Dimethyl-9-(10-phenylanthracen-9-yl)-7H-Indeno[1,2-f] Isoquinoline] Derivatives

J Nanosci Nanotechnol. 2020 Nov 1;20(11):6648-6652. doi: 10.1166/jnn.2020.18759.

Authors

Jinho Park¹, Beomsu Jang¹, Yu Ji Moon², Hakjun Lee², Young Kwan Kim², Seung Soo Yoon¹

Affiliations

¹ Department of Chemistry, Sungkyunkwan University Suwon, 16419, Korea.
² Department of Information Display, Hongik University, Seoul, 04066, Korea.

PMID: 32604490
DOI: 10.1166/jnn.2020.18759

Abstract

In this study, we synthesized and characterized two novel deep blue emitting materials based on indenoquinoline-substituted phenylanthracene derivatives. Multilayer organic light-emitting diodes were fabricated with the following sequence: indium-tin-oxide (ITO)/4,4',4″-tris[2-naphthyl(phenyl)amino (2-TNATA)/4,4'-bis(N-N-naphthyl)-N-phenylamino) biphenyl (NPB)/Blue emitting material (1 or 2)/Bathophenanthroline (Bphen)/lithium quinolate (Liq)/Al. A device B using '7,7-dimethyl-9-(10-phenylanthracen-9-yl)-7H-indeno[1,2-f] isoquinoline (2)' as an emitter showed the efficient emission with the luminous efficiency, power efficiency, and external quantum efficiency of 2.30 cd/A, 1.02 lm/W, 2.94% at 20 mA/cm², respectively. This device exhibited deep-blue emission with the Commission Internationale De LÉnclairage (CIE) coordinates of (0.16, 0.08) and λ^max = 436 nm at 8.0 V.