Nonparabolicity as a tool in band-gap engineering
- 1 March 1988
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 63 (5) , 1789-1791
- https://doi.org/10.1063/1.339869
Abstract
A new analytical, but still approximate, formula for the threshold energy of electron-electron-hole impact ionization is given for the case of parabolic valence and conduction bands of the simple Kane type. It is shown for the first time that impact ionization in this system can be ‘‘switched off’’ if the ratio of electron to hole effective mass is large enough. The condition for this to happen is given by a new formula which is exact within this model.This publication has 11 references indexed in Scilit:
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