Patent number: 8043593
Abstract: An aggregated crystalline silicon powder with a BET surface area of 20 to 150 m2/g is provided. The aggregated silicon powder may be doped with phosphorus, arsenic, antimony, bismuth, boron, aluminium, gallium, indium, thallium, europium, erbium, cerium, praseodymium, neodymium, samarium, gadolinium, terbium, dysprosium, holmium, thulium, lutetium, lithium, ytterbium, germanium, iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium, platinum, copper, silver, gold, or zinc.
Type:
Grant
Filed:
April 13, 2010
Date of Patent:
October 25, 2011
Assignee:
Evonik Degussa GmbH
Inventors:
Markus Pridoehl, Paul Roth, Hartmut Wiggers, Frank-Martin Petrat, Michael Kraemer