Development of bandgap graded a-SiOx:H solar cells for two-terminal and four-terminal applications

In this thesis, graded bandgap energy a-SiO_x:H solar cells are developed to attain a high JSC without compromising their high <i>V_OC </i>× FF product. First, a grading method which takes into account the interdependence of bandgap energy, deposition rate and the desired grading profile for a-SiO_x:H materials is...