A new pyroelectric technique for the thermal wave scanning microscopy is presented. The potentiality of the method for probing and characterizing defects in solid samples is tested for surface and subsurface defects.
The photothermal pyroelectric technique is applied to the characterization of photovoltaic cells and a comparison with the photoacoustic detection is presented. The difference between the photoacoustic and the pyroelectric data is interpreted in terms of a simple model for a junction-type solar cell.
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