Patent · US Active

Method for producing a thin-film solar module

US11444217B2 · kind B2 · utility

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16Claims

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Assignee

CNBM RESEARCH INSTITUTE FOR ADVANCED GLASS MATERIALS GROUP CO., LTD. · CN

Inventors

Andreas Heiss · Penzing, DE
Helmut Vogt · Munich, DE

Key dates

Filing date	Feb 8, 2019
Grant date	Sep 13, 2022
Priority date	—
Expiry date	Feb 8, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH10F77/311
WIPO fieldSemiconductors
WIPO sectorElectrical engineering

Abstract

A method for producing a thin-film solar module with serially connected solar cells and related device. A back electrode layer is deposited on one side of a flat substrate and subdivided by first patterning trenches. An absorber layer is deposited over the back electrode layer and subdivided by second patterning trenches. A front electrode layer is deposited over the absorber layer. At least the front electrode layer is subdivided by third patterning trenches. A direct succession of a first patterning trench, a second patterning trench, and two adjacent third patterning trenches forms a patterning zone. The third patterning trenches are produced by laser ablation through a pulsed laser beam, where one third patterning trench is produced with laser pulses of higher energy and the other third patterning trench of the patterning zone is produced with laser pulses of lower energy.

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