Internal photoemission spectroscopy for a PtSi/p-type Si Schottky-barrier diode

Abstract
Internal photoemission spectroscopy characteristics for a PtSi/p-type Si Schottky-barrier diode have been studied. The authors present a one-dimensional calculation of the internal photoemission spectroscopy for Schottky-barrier diodes, taking into account the effective barrier height and the position from the PtSi/p-type Si interface. The internal photoemission spectroscopy characteristics so calculated are then compared with the measured characteristics obtained for PtSi/p-type Si Schottky-barrier diodes under different PtSi thicknesses and applied voltage conditions. The hot hole escape depths in both PtSi and Si are then determined and the excitation energy effects are presented.