Electron and hole quasi-fermi levels in the vicinity of a grain boundary under uniform illumination: An approximate method of computation

Abstract

An approximate method for the computation of quasi-Fermi levels under various illumination and zero bias is presented. The theory is based on two approximations: an abrupt depletion space charge region surrounding the grain boundary, and a parabolic variation, assumed to be small, of the majority quasi-Fermi level. Results indicate the approximations in our analysis are valid at low illumination. © 1985.