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US 2026/0173547 A1Published application
Metal Oxynitride Back Contact Layers for Photovoltaic Devices
AssigneeFirst Solar, Inc.
InventorsChangming Jin, Vijay Karthik Sankar
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Abstract
According to the embodiments provided herein, back contacts for photovoltaic devices can include one or more metal oxynitride layers.
Claims20
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, and
- the metal oxynitride material comprises a group IV transition metal, a group V transition metal, or a group VI transition metal.
4 more elements
A photovoltaic device comprising:
- an absorber layer;
- 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;
- at least one layer comprising zinc and tellurium;
- and wherein:
- the at least one layer comprising zinc and tellurium is positioned between the layer comprising a metal oxynitride material and the first surface of the back contact.
7 more elements
Dependencies are inferred from the claim text.