First Solar, Inc.

Long Cheng

Benyamin Buller

Akhlesh Gupta

Anke Abken

Jigish Trivedi

Pawel Mrozek

A method and apparatus for an amount of Cu or Sb dopant incorporated into a zinc-based layer as the layer is being formed. The layer is formed over a coated substrate using an electrochemical deposition (ECD) process. In the ECD process, the bias voltage and plating solution composition may be systematically changed during the electrochemical deposition process to change the amount of Cu or Sb dopant incorporated into the plated layer.

Method and apparatus for forming copper(Cu) or antimony(Sb) doped zinc telluride and cadmium zinc telluride layers in a photovoltaic device

A photovoltaic device can include an intrinsic metal layer adjacent to a semiconductor absorber layer; and a doped metal contact layer adjacent to the intrinsic metal layer, where the doped metal contact layer includes a metal base material and a dopant.

Metal barrier-doped metal contact layer

The present invention relates to methods for cleaning semiconductors used in photovoltaic cells and modules, and methods for manufacturing p-n junctions for photovoltaic cells and modules. More particularly, the method comprises providing at least one semiconductor layer of a photovoltaic module and scrubbing the surface of the least one semiconductor layer in the presence of a chemical solution.

Photovoltaic module cleaner

A photovoltaic device can include a doped contact layer adjacent to a semiconductor absorber layer, where the doped contact layer includes a metal base material and a dopant.

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Perrysburg, OH, United States of America

Long Cheng