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The Role Of Interface Effects And Minority Carriers In The Metal-Semiconductor Schottky Junction, Sabih Uddin Omar

Theses and Dissertations

The metal-semiconductor (MS) Schottky barrier junction, formed by putting a metal in contact with a semiconductor crystal, is the simplest form of electronic rectifier. Despite the simple structure, the MS junction shows a variety of anomalous electrical characteristics. The non-ideality is generally described as a linear bias-dependence of the energy barrier height at the MS junction, quantified by an ideality factor. As the physical origin of this bias-dependent barrier height, the presence of various interface effects, such as the Schottky barrier inhomogeneity, interface trap states and morphological defects, have been proposed. However, there is no consensus among the researchers about …