Abstract
The charge distribution in passivating coatings based on lead borosilicate glass was studied by temperature-dependent flat-band voltage measurements. The results indicate the presence of two types of charge in the interfacial layer of the glass: a temperature-independent negative charge and a variable positive charge, which increases with temperature. The variable charge is shown to be associated with the donor states present in the interfacial layer, which exchange electrons with the semiconductor bulk.
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