New carbazole derivatives including coumarin moiety for blue emitting materials. (2nd September 2017)

• Record Type: Journal Article
• Authors: Lee, Hayoon; Jung, Hyocheol; Jo, Minjin; Shin, Dong-Hee; Kay, Kwang-Yol; Park, Jongwook
• Is Part Of: Molecular crystals and liquid crystals. Volume 654(2017)
• Page Start: 34
• Page End: 39
• Publication Date: 2017-09-02
• Subjects: Blue emitting materials -- carbazole -- coumarin -- fluorescence -- OLEDs; Molecular crystals -- Periodicals; Liquid crystals -- Periodicals; Liquid crystals; Molecular crystals; Periodicals; 548
• DOI: 10.1080/15421406.2017.1355197
• Languages: English
• ISSNs: 1542-1406

Abstract

ABSTRACT: New carbazole derivatives including coumarin moiety, 7-(3-Carbazol-9-yl-phenyl)-chromen-2-one (C-PCa), 7-(9-Phenyl-9H-carbazol-3-yl)-chromen-2-one (PCa-C), 7-[9-(3-Carbazol-9-yl-phenyl)-9H-carbazol-3-yl]-chromen-2-one (PDCa-C) were synthesized by Suzuki reaction. A non-doped OLED was fabricated using the synthesized material as emitting materials. Among the three synthesized compounds, PDCa-C showed the highest efficiency with current efficiency of 1.34 cd/A and C.I.E of (0.18, 0.23) in the current density 10 mA/cm 2 .