FORMING SPHERICAL SEMICONDUCTIVE NANOPARTICLES

摘要

In certain embodiments, a material comprising one or more semiconductive substances is vaporized to generate a vapor phase condensate. The vapor phase condensate is allowed to form nanoparticles. The nanoparticles are annealed to yield substantially spherical nanoparticles.

主权项

1. A system comprising:
a vacuum chamber; a material hopper coupled to the vacuum chamber; a heating element disposed within the vacuum chamber; and a quenchant gas supplier disposed within the vacuum chamber; the vacuum chamber configured to provide an near vacuum volume; the material hopper configured to direct material to the heating element, the material comprising one or more semiconductive substances; the heating element configured to raise the temperature of the material to vaporize the material to generate a vapor phase condensate; the quenchant gas supplier configured to introduce a quenchant gas into the vacuum chamber to cool the vapor phase condensate to form a plurality of nanoparticles; and the heating element configured to raise the temperature of the nanoparticles to anneal the nanoparticles to yield substantially spherical nanoparticles.