1009629-20-2Relevant academic research and scientific papers
Photochemical Degradation of Various Bridge-Substituted Fluorene-Based Materials
Kobin, Bj?rn,Behren, Sandra,Braun-Cula, Beatrice,Hecht, Stefan
, p. 5474 - 5480 (2016)
Photochemical degradation is an important issue to be overcome in advancing the lifetime of fluorene-containing conjugated polymers. In order to optimize the inertness of the materials, a quantitative measure for the efficiency of degradation is needed. Here, we introduce a method to measure a relative quantum yield of the photochemical degradation by monitoring the kinetics of the process by means of UV/vis spectroscopy and liquid chromatography (LC) techniques. This method is employed to a set of differently substituted 2,7-diphenylfluorenes, serving as model compounds for polyfluorene materials. Our measurements show that the quantum yield changes by orders of magnitude upon varying the bridge substituents and that altered kinetics indicate changing degradation mechanisms.
Highly Soluble p-Terphenyl and Fluorene Derivatives as Efficient Dopants in Plastic Scintillators for Sensitive Nuclear Material Detection
Yemam, Henok A.,Mahl, Adam,Tinkham, Jonathan S.,Koubek, Joshua T.,Greife, Uwe,Sellinger, Alan
supporting information, p. 8921 - 8931 (2017/07/11)
Plastic scintillators are commonly used as first-line detectors for special nuclear materials. Current state-of-the-art plastic scintillators based on poly(vinyltoluene) (PVT) matrices containing high loadings (>15.0 wt %) of 2,5-diphenyloxazole (PPO) off
LUMINESCENT COMPOUNDS AND ELECTROLUMINESCENT DEVICE USING THE SAME
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Page/Page column 20, (2011/04/14)
The present invention relates to organic electroluminescent compounds and organic electroluminescent devices employing the same. More specifically, the invention relates to organic electroluminescent compounds containing an anthracenyl group or an aryl group having an anthracenyl substituent m the aryl ring of fluorene or indenofluorene, as a blue electroluminescent material in an organic electroluminescent layer. The electroluminescent compounds according to the invention exhibit high luminous efficiency and excellent life property, so that an OLED device having very good operation lifetime can be prepared therefrom.
ELECTROLUMINESCENT COMPOUNDS WITH HIGH EFFICIENCY AND ORGANIC LIGHT-EMITTING DIODE USING THE SAME
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Page/Page column 24, (2011/07/06)
The present invention relates to novel organic electroluminescent compounds and an organic light-emitting diode comprising the same. The organic electroluminescent compounds according to the present invention exhibit high luminous efficiency and excellent life property as a material, so that an OLED device having very good operation life can be prepared therefrom.
