Role of desorption in the growth process of molecular organic thin films

Article Abstract:

The strong desorption tendency of 4T thin films are demonstrated, and it has important results on the study of the growth process or organic materials and on the performances of devices based ion these systems. A quantitative description of desorption is provided by comparing the prediction of thermodynamics for the quarterthiophene/silica system with the experimental observation of the growth dynamics of the film and the results of approximate kinetic models.

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Thermodynamic theory of light-induced material transport in amorphous azobenzene polymer films

Article Abstract:

A novel thermodynamic approach is proposed that explains a number of experimental findings including the light-induced deformation of free-standing films and the formation of surface relief gratings for main inscription geometries. The magnitude of the elastic stress, estimated by taking the derivative of the free energy over the sample deformation, is shown to be sufficient to induce plastic deformation of the polymer film.

Petrochemical Manufacturing, Benzene, Optical properties, Amorphous substances, Amorphous materials

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Modeling square-wave voltammetry of thin protein films using Marcus theory

Article Abstract:

A model combining Marcus theory with Gaussian distributions of kinetic and thermodynamic parameters was developed for square-wave voltammetry (SWV) and applied to the protein myoglobin in thin films of didocyldimethylammonium bromide on electrodes. Nonlinear regression analysis allowed direct estimation of electron transfer rate constants and reorganization energies from single experiments at relatively large pulse heights.

Gaussian distribution, Normal distribution

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