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Erschienen in:
01.02.2009
4-(p-N,N-Diarylphenyl)substituted 1H-pyrazolo[3,4-b]quinolines as novel luminophors for organic light emitting diode—synthesis, electroluminescent devices
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 2/2009
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Abstract
We have synthesized 4-(p-N,N-diarylphenyl)substituted 1H-pyrazolo[3,4-b]quinolines 6–9. The principal novelty of these materials consists in N,N-aryl substituents in the 4-positioned phenyl ring. We have explored their spectral properties, in particularly absorption, photoluminescence and electroluminescence to obtain a possibility to tune the emission with the varied substituents in the visible spectral range. Quantum chemical simulations were done and the origin of the observed spectra is discussed. Role of the surrounding matrices on the observed absorption, photoluminescent and electroluminescent spectra is discussed.