Unique aggregate structure of fluoroperylene diimide thin film

Article Abstract:

The UV-vis absorption, fluorescence spectra, electron affinities, morphologies, topographies, and XRD patterns of evaporated N, N'-diperfluorophenyl-3, 4,9,10-perylenetetracarboxylic diimide (DFPP) films were examined and compared to those of DFPP's nonfluorinated analogue, N, N'-diphenyl-3, 4,9,10-perylenetetracarbxylic diimide (DPP) film, aiming to clarify the effect of fluorination on the aggregate structure of perylene diimide thin films. On the basis of the results, possible DFPP molecular stack in the film was proposed.

Ultraviolet radiation, Fluorine compounds

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Vacuum-deposited submonolayer thin films of a three-ring bent-core compound

Article Abstract:

The morphology, structure and phase behavior of vapor-deposited submonolayer films of a three-ring bent-core compound m-OSB is detailed. The bent core molecules are strongly dipolar, and aggregates made of such molecules are destined to have strong intermolecular interactions. The fluidlike behavior seen during the transition and the short-range positional order of the molecules in the droplet islands are indicative of a liquid crystal phase.

Vapor-plating, Vapor deposition, Vapour deposition

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Photoelectrochemical properties of a dinitrogen-fixing iron titanate thin film

Article Abstract:

The band edge positions of a nitrogen-fixing nanostructured semiconductor thin film are determined both in the dark through spectroelectrochemistry and under irradiation by photovoltage measurements. Both the methods give the same result indicating that the film in addition to the dinitrogen-fixing phase Fe2Ti2O7 also contains titanium dioxide.

Ilmenite, Nitrogen, Nitrogen fixation, Chemical properties

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