Spatial heterogeneity in a polymer thin film probed by single molecules

Article Abstract:

Single molecule fluorescence imaging and lifetime measurements provide an effective approach for mapping spatially heterogeneous sites in a polymer melt near the glass transition temperature. A single molecule approach provides an ultimate solution on the long-standing mystery of the physics underlying the glass transition.

Semiconductors and related devices, Semiconductor and Related Device Manufacturing, Thin Film Materials, Thin films, Dielectric films

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Template synthesis of conducting polymeric nanocones of poly(3-methylthiophene)

Article Abstract:

The electrochemical synthesis of conducting poly(3-methylthiophene) nanocones on carbon cloth, employing an aluminal membrane as a template, is reported. A rapid charge transport within the nanocones and between the nanocones and the electrolyte is disclosed by the impedance and cyclic voltammetric measurements.

Observations, Electrochemistry, Chemical synthesis

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Excitation induced emission color change in conjugated polymers

Article Abstract:

Luminescence color change of poly-(2,5-dioctyl para-phenyleneethynylene) through variations of excitation intensity was reported. The two ways of changing the emission color are possible and para-pheyleneethynylene is expected to be useful in color tuning applications.

Spectra (Spectroscopy)

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