Process of making metal chalcogenide particles

摘要

There is disclosed a process of making metal chalcogenide particles. The process comprises the steps of reacting a metal salt solution with a precipitant solution under conditions to form metal chalcogenide particles and by-product thereof, coating the metal chalcogenide particles with a surfactant; and separating the surfactant coated chalcogenide particles from the by-product to obtain metal chalcogenide particles substantially free of by-product.

主权项

1. A process of making metal chalcogenide particles, the process comprising the steps of:
reacting a metal salt solution with a precipitant solution at a temperature of less than about 100 degrees Celsius for a time duration of less than 90 minutes under high shear conditions to form metal chalcogenide particles and by-product thereof, wherein said precipitant solution is an oxygen-containing base solution or a chalcogenide salt solution; coating said metal chalcogenide particles with a surfactant; and separating the surfactant coated chalcogenide particles from the by-product to obtain said metal chalcogenide particles substantially free of said by-product;wherein said surfactant is a silane coupling agent or a metal organic salt having a polar group and an apolar group thereon.