Patent · US Active

Photovoltaic back contact

US9252302B2 · kind B2 · utility

0Cited by

4References

21Claims

0Family size

Assignee

First Solar, Inc. · US

Inventors

Pratima Addepalli · Saline, US
John S. Deeken · Toledo, US
Oleh Karpenko · San Jose, US

Key dates

Filing date	Nov 5, 2013
Grant date	Feb 2, 2016
Priority date	—
Expiry date	May 7, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A method to preparing Cadmium telluride surface before forming metal back contact is disclosed. The method can include removing carbon from Cadmium telluride surface.

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