Title :
Electron-hole processes in an anti-lock m-n contact
Author :
Shekhovtsov, N.A. ; Shekhovtsov, A.N.
Author_Institution :
Radiphysical Dept., Kharkov Nat. Univ., Ukraine
Abstract :
The presence of inductive properties for contact of Sn-high resistance germanium of n-type has been shown experimentally. This is anti-closed m-n contact, which has φm<φn, where φm and φn are the work functions of electron from metal m- and n-type semiconductor respectively. The inductive properties of anticlosed m-n contact cannot be explained in the framework of metal-semiconductor contact theory. Owing to it, the electron-hole processes into anti-closed m-n contact are investigated at applied direct voltage. The energy conditions of dynamic equilibrium for the space-charge region (SCR) of m-n contact, which describes the dependence of boundary magnitude upon applied voltage, are determined. The equation of volt-ampere characteristics is defined. It is shown that the differential capacitance of m-n contact is changing the sign from positive to negative under growth of reverse voltage, and is changing exponentially under growth of forward voltage
Keywords :
elemental semiconductors; germanium; semiconductor-metal boundaries; space charge; tin; work function; Sn-Ge; anti-lock m-n contact; differential capacitance; dynamic equilibrium; electron-hole processes; inductive properties; metal-semiconductor contact; space charge region; volt-ampere characteristics; work function; Capacitance; Charge carrier processes; Crystals; Difference equations; Dynamic equilibrium; Electrons; Poisson equations; Thermodynamics; Thyristors; Voltage;
Conference_Titel :
Physics and Engineering of Millimeter and Sub-Millimeter Waves, 2001. The Fourth International Kharkov Symposium on
Conference_Location :
Kharkov
Print_ISBN :
0-7803-6473-2
DOI :
10.1109/MSMW.2001.946846