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US 2022/0102567 A1Published application
Metal oxynitride back contact layers for photovoltaic devices
AssigneeFirst Solar, Inc.
InventorsChangming Jin, Vijay Karthik Sankar
Life of this patent
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Abstract
According to the embodiments provided herein, back contacts for photovoltaic devices can include one or more metal oxynitride layers.
Claims25
A photovoltaic device comprising:
- a conducting layer having a surface formed by a layer comprising aluminum;
- and
- a back contact having a first surface, a second surface, and a thickness defined between the first surface of the back contact and the second surface of the back contact, wherein:
- the second surface of the back contact is in contact with the surface of the conducting layer;
- and
- the back contact comprises a layer comprising a metal oxynitride material and one or more layers containing zinc, cadmium, tellurium, or any combination thereof positioned between the layer comprising the metal oxynitride material and the first surface of the back contact.
3 more elements
4-7. (canceled)
10-11. (canceled)
(canceled)
(canceled)
A photovoltaic device comprising:
- an absorber layer comprising cadmium and tellurium;
- and
- a back contact having a first surface, a second surface, and a thickness defined between the first surface of the back contact and the second surface of the back contact, wherein:
- the first surface of the back contact is in contact with the absorber layer;
- and
- the back contact comprises a layer comprising a metal oxynitride material and one or more layers containing zinc, cadmium, tellurium, or any combination thereof positioned between the layer comprising a metal oxynitride material and the first surface of the back contact.
3 more elements
29-52. (canceled)
Dependencies are inferred from the claim text.