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Thermally stimulated discharge of alternate-layer Langmuir-Blodgett film structures

The technique of thermally stimulated discharge (TSD) has been applied to polar Langmuir-Blodgett films. Two types of alternate-layer film, in which the polarisation is in opposite senses with respect to the substrate, have been studied, and four features have been distinguished in their TSD thermograms. Two of these are almost certainly due to the pyroelectric effect and to disordering of the organic lattice. The origins of the other two features are less clear, but the experimental results suggest that one is due to the release of excess charges, and the other to the reorientation of dipoles.