On November 21, 2001, Peng, Kang-Yung; Chen, Show-An; Fann, Wun-Shain published an article.Recommanded Product: 1-((2-Ethylhexyl)oxy)-4-methoxybenzene The title of the article was Efficient Light Harvesting by Sequential Energy Transfer across Aggregates in Polymers of Finite Conjugational Segments with Short Aliphatic Linkages. And the article contained the following:
A series of light-harvesting polymers (poly-DSBs) of dialkyloxy- or dialkyl-substituted distyrylbenzene ( substituents = methoxy, 2-ethylhexyloxy, and cyclohexyl) with methylene or ethylene spacers were prepared The interactions between lumophores and the role of chem. structure of poly-DSBs on the absorption, emission, and excitation spectra were studied. The proximity of distyrylbenzene lumophores was critical to effective interactions and to the energy-transfer processes. In concentrated solutions and solid films, intermol. aggregates exist resulting from different extents of interactions between lumophores and involve at least three species: loose, compact, and aligned aggregates as observed by photoluminescence and excitation spectroscopy. Sequential energy transfer was directly observed from individual lumophores to the most compact, aligned aggregates via looser intermol. aggregates by time-resolved fluorescence spectroscopy. This process mimics energy transfer in photosynthesis and is highly efficient; fluorescence can be red-shifted drastically by the presence of comparatively few aggregates and light from concentrated solutions and films of poly-DSBs is entirely or almost due to aggregation emission. Although sequential energy-transfer in fully conjugated electro/photoluminescent polymers due to inhomogeneity other than distributed conjugation length has never been directly observed at room temperature, events similar to those observed in poly-DSBs could occur but on a much shorter time scale, i.e., a few picoseconds. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Recommanded Product: 1-((2-Ethylhexyl)oxy)-4-methoxybenzene
The Article related to alkyl substituted styrylbenzene light harvesting polymer preparation, aggregation conjugated polymer alkyl substituted styrylbenzene lumophore, energy transfer aggregate alkyl substituted styrylbenzene polymer, conjugated polymer alkyl alkoxy substituted styrylbenzene and other aspects.Recommanded Product: 1-((2-Ethylhexyl)oxy)-4-methoxybenzene
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