Novel Fluoranthene Structure for Deep-Blue Organic Light-Emitting Diodes
Abstract:As a new fluoranthene derivative, a synthesis of benzo[k]fluoranthene was suggested, so new blue emitting materials, 7,12-diphenylbenzo[k]fluoranthene [DPBF] and 7,8,10-triphenylfluoranthene [TPF] were synthesized. PLmax values of both compounds showed the wavelengths of 458 nm (TPF) and 434 nm, 453 nm (DPBF) that are in blue region. ELmax wavelength of the device using DPBF as an emitting layer was 436 and 454 nm in the deep-blue region, which are similar values with PL. The device that used DPBF as an emitting layer showed high efficiency of 2.11 cd/A and the excellent color coordinate value of (0.161, 0.131) in deep-blue region.
Document Type: Research Article
Publication date: 2008-09-01
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