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TitleTunable phenylenevinylene dimer and trimer molecules for light harvesting antennas
Publication TypeConference Paper
Year of Publication2014
AuthorsBhuiyan, M.D.H., Winch N.M., Smith G.J., Breukers R.D., Raymond S.G., Kay A.J., and Smith T.A.
Conference NameProceedings of SPIE - The International Society for Optical Engineering
Date Published2014
Keywords1 ,4-phenylenevinylene, Absorption, Alkoxy substituents, Dimers, Excited singlet state, fluorescence, HOMO and LUMO energies, Light-harvesting antennas, Molecules, Oligomers, Organic polymers, Phenylenevinylene, Physical characterization, Quantum-mechanical calculation, Solar concentrators, Synthesis (chemical)
AbstractHere we report the synthesis and physical characterization of four substituted phenylenevinylene molecules, 1-4, which serve as short chain model oligomers of poly(1,4-phenylenevinylene). Quantum mechanical calculations on alkoxy substituted stilbene derivatives 1 and 2 reveal a direct correlation between the torsional angles and the substituent pattern. HOMO and LUMO energy levels were calculated for all four compounds and showed that the introduction of alkoxy substituents reduce the energy gaps between the ground and first excited singlet states of these molecules. In addition, absorption spectra, fluorescence life-times and quantum yield data of the four compounds are presented. © 2014 Copyright SPIE.

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