Electroluminescent properties of diphenylamino-dibenzo[g, p]chrysene derivatives. (1st September 2016)

• Record Type: Journal Article
• Authors: Kim, Dong Young; Kim, Young Seok; Lee, Hyun Woo; Jeong, Sujin; Kim, Young Kwan; Yoon, Seung Soo
• Is Part Of: Molecular crystals and liquid crystals. Volume 636(2016)
• Page Start: 99
• Page End: 106
• Publication Date: 2016-09-01
• Subjects: Organic light-emitting diode -- blue fluorescence -- dibenzochrysene -- Buchwald–Hartwig reaction; Molecular crystals -- Periodicals; Liquid crystals -- Periodicals; Liquid crystals; Molecular crystals; Periodicals; 548
• DOI: 10.1080/15421406.2016.1201386
• Languages: English
• ISSNs: 1542-1406

Abstract

ABSTRACT: We designed and synthesized two diphenylamino-dibenzo[ g, p ]chrysene derivatives. To investigate EL properties of these blue emitting compounds, devices were fabricated as following structure : indium-tin-oxide (ITO) (180 nm) / N, N' -di(1-naphthyl)- N, N' -diphenyl-(1, 1′-biphenyl)−4, 4′-diamine (NPB) (50 nm) / 2-methyl-9, 10-bis(naphthalen-2-yl)anthracene (mADN); emitters1 and2 (3% doping) (20 nm) / tris(8-hydroxyquinolinato)aluminum (Alq3 ) (30 nm) / lithium quinolate (Liq) (1 nm) / Al (100 nm). Particularly, a device using 3, 6-dimethyl-11, 14-bis(diphenylamino)-dibenzo[ g, p ]chrysene as a dopant showed good EL properties with power, luminous, and external quantum efficiency of 0.99 lm/W, 2.28 cd/A, and 2.81%, respectively, at 20 mA/cm 2 . The CIE coordinates were (0.15, 0.12) at 6.0 V.