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Conditions for quasi-equilibrium in a semiconductor surface space-charge layer

Authors
Journal
Surface Science
0039-6028
Publisher
Elsevier
Publication Date
Volume
3
Issue
2
Identifiers
DOI: 10.1016/0039-6028(65)90036-1

Abstract

Abstract The transport equations in a surface space-charge layer are solved approximately. The results show that the quasi-equilibrium approximation is generally invalid for the bulk minority carriers in an accumulation layer or in an inversion layer under extraction, and for the bulk majority carriers in an inversion layer under injection. The possibility of complete depletion of carriers of one or the other type at the surface imposes a finite upper limit on the effective surface recombination velocity.

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