METHODS FOR PREPARING SILICON GERMANIUM ALLOY NANOCRYSTALS

摘要

The present invention relates to a method of preparing silicon germanium alloy nanocrystals by the simultaneous thermal disproportionation of a silic eous material and GeX2 in a conventional tube furnace. Also included is a me thod of preparing free standing silicon germanium nanocrystals by the acid e tching product of the product of the thermal disproportionation of a siliceo us material and GeX2.