Electronic properties of grain boundaries in semiconductors

J.C. Bourgoin , A. Mauger , M. Lannoo

The aim of this communication is to describe the main results which we have obtained in the past years on the electronic properties of grain boundaries in semiconductors. The study, experimental as well as theoretical, has focused on the main electronic characteristics i.e. density of states, optical cross sections, carrier capture cross sections (and recombination velocity) from which all the other electronic properties can be derived. The experimental results concern mostly Ge and Si bicrystals although some experiments were performed in poly-Si. Since the results obtained are rather numerous and detailed in publications, here we discuss them briefly, focusing on the leading idea with connects them.

Keywords: defect electron energy states; electron hole recombination; electronic density of states; elemental semiconductors; germanium; optical constants; silicon; semiconductor; grain boundaries; electronic properties; electronic characteristics; density of states; optical cross sections; carrier capture cross sections; recombination velocity; bicrystals; poly Si; Si; Ge

Domains: Physics archives

J.C. Bourgoin, A. Mauger, M. Lannoo. Electronic properties of grain boundaries in semiconductors. Revue de Physique Appliquée, 1987, 22 (7), pp.579-583. ⟨10.1051/rphysap:01987002207057900⟩. ⟨jpa-00245579⟩