Patent · US Active

Method for producing a silicon ingot by solidification of a melt comprising a nucleation agent including nanoscale particles

US9238877B2 · kind B2 · utility

32Cited by

1References

30Claims

0Family size

Assignee

SOLARWORLD INNOVATIONS GMBH · DE

Inventors

Andreas Krause · Frankfurt am Main, DE
Bernhard Freudenberg · Coburg, DE
Gerd Fischer · Hannover, DE
Josef Stenzenberger · Freiberg, DE
Mark Hollatz · Neustadt, DE
Armin Muller · Freiberg, DE

Key dates

Filing date	Dec 29, 2011
Grant date	Jan 19, 2016
Priority date	—
Expiry date	Nov 19, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC30B11/14
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Method for producing a silicon ingot, comprising the following steps: providing a container to receive a silicon melt, providing a temperature control device to control the temperature of the silicon melt in the container, arranging raw material in the container comprising silicon and at least one nucleation agent to assist a heterogeneous nucleation in the silicon melt, and control of the temperature in the container for the directed solidification of the silicon melt, the nucleation agent comprising nanoscale particles.

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