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Author Yoon, Jhin-yeong ♦ Na, Eun Jae ♦ Park, Soo Na ♦ Lee, Seok Jae ♦ Kim, Young Kwan ♦ Yoon, Seung Soo
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ ANTHRACENE ♦ COLOR ♦ COUPLING ♦ ELECTROLUMINESCENCE ♦ ELECTRONS ♦ FLUORESCENCE ♦ LAYERS ♦ LIGHT EMITTING DIODES ♦ NAPHTHALENE ♦ ORGANIC PHOSPHORUS COMPOUNDS ♦ PHOSPHINE OXIDES ♦ QUANTUM EFFICIENCY ♦ SYNTHESIS
Abstract Highlights: • Blue fluorescent material is important for application in full-color displays. • We have synthesized emitters based on anthracene connected with oxide moieties. • 1C shows a highly efficient blue EL emission due to electron-injection property. - Abstract: A series of new blue-emitting materials: (4-(10-(naphthalen-2-yl)anthracen-9-yl)phenyl)(phenyl)methanone (1); 9-(naphthalen-2-yl)-10-(4-((diphenyl)phosphine oxide)phenyl)anthracene (2); 9-(naphthalen-2-yl)-10-(4-(phenylsulfonyl)phenyl)anthracene (3) were designed and synthesized via Suzuki cross-coupling reaction. Multilayer OLEDs were fabricated in the following sequence: ITO (180 nm)/NPB (50 nm)/blue materials 1–3 (30 nm)/TPBi (15 nm)/Liq (2 nm)/Al (100 nm). All devices showed the efficient blue EL emissions. In particular, the device using 1 as an emitter exhibited efficient blue electroluminescent properties with a maximum luminous, power, external quantum efficiency and CIE coordinates of 0.36 cd/A, 0.90 lm/W, 0.55% at 20 mA/cm{sup 2} and (x = 0.16, y = 0.20) at 10.0 V, respectively.
ISSN 00255408
Educational Use Research
Learning Resource Type Article
Publisher Date 2014-10-15
Publisher Place United States
Journal Materials Research Bulletin
Volume Number 58


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