Evidence for an influence of local dipole excitations in thermal desorption

Article Abstract:

Ferroelectric crystalline copolymer films of vinylidene fluoride with trifluoroethylene strongly interact with the dipoles of adsorbed and absorbed water molecules. The electronic structure of the ferroelectric copolymer films of vinylidene fluoride with trifluoroethylene films is locally altered with incident UV radiation suggesting metastable excited states that may involve dipole reorientation

Semiconductors and related devices, Semiconductor and Related Device Manufacturing, Thin Film Materials, Thin films, Dielectric films, Ferroelectric crystals, Electron configuration, Chemical properties, Atomic properties

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Abnormal temperature dependence of photoemission intensity mediated by thermally driven reorientation of a monomolecular film

Article Abstract:

A monomolecular film is studied to explain the dependency of the photoemission intensities of organic molecular layers on the Debye-Waller temperature behavior. The analysis shows that such behavior is more likely caused by the temperature dependant changes in the molecular orientation though the result is not always positive.

Design and construction, Photoemission, Monomolecular films, Thermal properties

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