An improved analysis for the determination of trap levels in silicon from laser microwave photoconductive decay measurements

Abstract

Dominant trap energy levels in silicon are extracted from the temperature dependence of minority carrier recombination lifetime, observed through laser microwave photoconductive decay. A small correction is made to the Arrhenius plot by incorporating the weakly temperature-dependent term in the recombination lifetime expression, hitherto ignored. The new extraction technique is simple to implement and the results are in good agreement with published data. © 1997 American Institute of Physics.