Some open problems in physics of disordered materials (and their possible solutions on the base of the barrier-cluster-heating model)

Abstract

The paper briefly summarizes the basic problems in physics of disordered materials, namely in physics of non-crystalline semiconductors. Although there was much attention devoted to the research in this area, many questions about the nature of processes taking place in these substances still remain unanswered. This article familiarizes the readers with the barrier-cluster-heating model of disordered semiconductors and discusses the possibility of explanations of the mentioned phenomena on its base. This article offers the explanation of the mid-gap absorption and mid-gap photoluminescence on the base of the barrier-cluster-heating model.