Patent · US Expired

Multicrystalline silicon having a low proportion of active grain borders

US6576831B2 · kind B2 · utility

6Cited by

3References

9Claims

0Family size

Assignee

DEUTSCHE SOLAR GMBH · DE

Inventors

Peter Woditsch · Krefeld, DE
Gunther Stollwerck · Krefeld, DE
Christian Hassler · Krefeld, DE
Wolfgang Koch · Batavia, US

Key dates

Filing date	Nov 14, 2001
Grant date	Jun 10, 2003
Priority date	—
Expiry date	Nov 14, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S136/29
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Directionally solidified, multicrystalline silicon having a low proportion of electrically active grain borders, its manufacturing and utilisation, as well as solar cells comprising said silicon and a method of manufacturing said cells.

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