Photovoltaic devices including doped semiconductor films

摘要

A photovoltaic cell can include a dopant in contact with a semiconductor layer.

主权项

1. A photovoltaic cell comprising:
a transparent conductive layer; a first semiconductor window layer over the transparent conductive layer; a dopant layer comprising a first dopant over the first semiconductor window layer; a second semiconductor window layer over the first semiconductor window layer, wherein the dopant layer is between the first semiconductor window layer and the second semiconductor window layer, and wherein the second semiconductor window layer includes an oxidant and the first dopant; and a semiconductor absorber layer over the second semiconductor window layer; wherein the first and second semiconductor window layers comprise CdS; and wherein the dopant layer containing the first dopant has a thickness between 4 and 15 Angstroms.