1220509-75-0Relevant academic research and scientific papers
Preparation of novel fused ring spiro[benzotetraphene-fluorene] derivatives and application for deep-blue host materials
Kim, Min-Ji,Lee, Chil-Won,Gong, Myoung-Seon
, p. 1639 - 1646 (2014/07/07)
A series of novel fused-ring spiro compounds, spiro[benzo[ij]tetraphene-7, 9′-fluorene] (SBTF) derivatives containing an end-capping aryl substituent at both the C3 and C10-positions hasbeen designed and synthesized via multi-step Suzuki coupling reactions. 3-(1-Naphthyl)-10-phenylSBTF (1N-PSBTF), 3-(2-naphthyl)-10-phenylSBTF (2N-PSBTF) and 3-[4-(1-naphthyl)phenyl]-10- phenylSBTF (NP-PSBTF) showed improved glass transition temperatures (T g) with good thermal stability. Their photophysical, electrochemical, and electroluminescent properties were investigated and were used to construct blue organic light emission diodes (OLEDs). The typical OLED devices showed excellent performance; the NP-PSBTF-based device exhibited highly efficient deep blue-light emission with a maximum efficiency of 5.27 cd/A (EQE, 4.63%) with CIE (x = 0.133, y = 0.144). According to these characteristics, these deep-blue light emitting materials have sufficient potential for fluorescent OLED applications.
NOVEL AROMATIC DERIVATIVES AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING SAME
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Page/Page column 32, (2010/04/27)
The compound of formula (I) of the present invention has improved thermal and thin film stability which can be advantageously used in the manufacture of an organic electroluminescent device having improved properties in terms of luminous efficiency, operation stability, color purity, and life time.
