Electronic structure of ZnTe:O and its usability for intermediate band solar cell

Abstract

The electronic structures of lattice highly mismatched ZnTe1−xOx alloys are calculated with the linear scaling three-dimensional fragment method. We found that the intermediate band states should be described as a result of the coupling between O impurity states rather than the coupling of the impurity state with the conduction band states. We also found that this system can be used for intermediate band state solar cell with a theoretical efficiency of 63%.