ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
In measurements of capacitance as a function of bias on selenium-metal diodes, an anomalous minimum has been observed at frequencies below about 1 kHz. As the frequency is increased, the minimum disappears. For Se-Bi, Se-Au, Se-Tl, and Se-Mg diodes, prepared by evaporation of the metal on a layer of crystallized selenium, the voltage at which the minimum occurs shifts systematically with the magnitude of the barrier height, as determined from capacitance at reverse-bias and current-voltage characteristics. However, no singularities have been observed in parallel incremental resistance at these particular voltages. A simple equivalent circuit model is proposed, which phenomenologically accounts essentially for the observed facts.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.342821
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