Patent ID: 9748096
Date: 2017-08-29
CPC Classifications: B82Y,C01B,C01P,C09K,H01L,Y10S

Claim:
1. A method of preparing semiconductor nanocrystals of a semiconductor material including one or more elements of Group IIIA of the Periodic Table of Elements and one or more elements of Group VA of the Periodic Table of Elements comprising: subjecting a mixture including one or more Group IIIA element precursors in a first solvent included in a reaction vessel at a first temperature of between about 25° C. and about 130° C., wherein the one or more Group IIIA element precursors comprise indium organic precursors; adding semiconductor nanocrystal seed particles comprising the semiconductor material including one or more elements of Group IIIA of the Periodic Table of Elements and one or more elements of Group VA of the Periodic Table of Elements to the reaction vessel at a second temperature of between about 150° C. and about 300° C., wherein the one or more elements of Group IIIA of the Periodic Table of Elements comprise indium and the one or more elements of Group VA of the Periodic Table of Elements comprise phosphorous; and adding one or more Group VA element precursors to the reaction vessel in a dropwise manner over a period of time sufficient to enlarge the semiconductor nanocrystal seed particles and form semiconductor nanocrystal core particles of a predetermined size, wherein the one or more Group VA element precursors comprise phosphorous organic precursors.