Organic light-Emitting diode based on bis(10-phenylanthracen-9-yl) benzene derivatives with a stable white emission
- Authors
- Kim, Young Seok; Yoon, Jhin-yeong; Lee, Hyun Woo; Kim, Jwajin; Lee, Song Eun; Lee, Ho Won; Kim, Young Kwan; Yoon, Seung Soo
- Issue Date
- 1-Sep-2015
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Organic light-emitting diode; White emission; Anthracene; Suzuki reaction
- Citation
- JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, v.310, pp.134 - 140
- Journal Title
- JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
- Volume
- 310
- Start Page
- 134
- End Page
- 140
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/9495
- DOI
- 10.1016/j.jphotochem.2015.05.027
- ISSN
- 1010-6030
- Abstract
- In this work, we used the Suzuki cross-coupling reaction to synthesize the following two emitting materials: 1,3-bis(10-phenylanthracen-9-yl)benzene (1) and 2,6-bis(10-phenylanthracen-9-yl)pyridine (2). To investigate the electroluminescent (EL) properties of these materials, multilayered organic light-emitting diodes (OLEDs) devices were fabricated in the following sequence: indium-tin-oxide (ITO) (180 nm)/4,4'-bis(N-(1-naphthyl)-N-phenylamino)biphenyl (NPB) (50 nm)/emitting materials (1 and 2) (40 nm)/tris(8-hydroxyquinolinato)aluminium (Alq(3)) (15 nm)/lithium quinolate (Liq) (2 nm)/Al (100 nm). Of special significance, a device using 1 as an emitting material showed a white emission with maximum luminance, luminous, power, and external quantum efficiency values of 1727 cd/m(2), 1.74 cd/A, 0.78 lm/W, and 0.67% at 20 mA/cm(2), respectively, as well as CIE coordinates of (031, 0.44) at 7V. Another device using 2 exhibited a sky-blue emission with maximum luminance, luminous, power, and external quantum efficiency values of 2279 cd/m(2), 1.95 cd/A, 0.97 lm/W, and 0.93% at 20 mA/cm(2), respectively as well as CIE coordinates of (0.24, 0.29) at 7V. (C) 2015 Elsevier B.V. All rights reserved.
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