3 years ago

Novel methoxy spirobifluorene and alkyl substituted diphenylacene based organic blue light emitting polymers for application in organic electronics

Novel methoxy spirobifluorene and alkyl substituted diphenylacene based organic blue light emitting polymers for application in organic electronics
We report on the synthesis and characterisation of a series of blue light emitting alkoxy substituted poly(spirobifluorenes) based on acene moiety. The obtained polymers had been fully characterised by FTIR, NMR, TGA, GPC techniques. The obtained polymers showed good photoluminescence and electroluminescence properties with blue fluorescence, obtained by supressing the excimer formation as a result of intermolecular interactions. The optical band gaps of all polymers were estimated to be in the range of 2.64–2.71 eV with good fluorescent quantum yield. The introduction of a spiro-structure in polymer backbone leads to its high thermal stability and good solubility in common organic solvents such as CH2Cl2, CH3Cl, toluene, tetrahydrofuran etc.

Publisher URL: www.sciencedirect.com/science

DOI: S0032386117307012

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