Patent · US Active

Method for producing a CdTe solar cell

US11081616B2 · kind B2 · utility

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2References

2Claims

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Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Daniel Hirsch · Dresden, DE
Olaf Zywitzki · Freiberg, DE
Thomas Modes · Dresden, DE
Torsten Werner · Dresden, DE
Torsten Kopte · Dresden, DE
Christoph Metzner · Dresden, DE

Key dates

Filing date	May 24, 2019
Grant date	Aug 3, 2021
Priority date	—
Expiry date	May 24, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A method for producing a CdTe solar cell is provided, wherein at least the following layers are deposited on a glass substrate within a vacuum chamber: a TCO layer acting as a frontal contact; at least one CdTe layer; a thin layer of a chlorine-containing compound, and an electrically conductive layer acting as a return contact. Here, a maximally 20 nm thick passivation layer made from CdS, in which chemically non-bound oxygen is embedded, is deposited on the TCO layer prior to deposition of at least one CdTe-layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.