Patent ID: 8784701

Claim:
A process for producing nanoparticles represented by the formula: AB 1-x B′ x Se 2-y C y where A is Cu; B and B′ are each independently selected from the group consisting of In and Ga; C is selected from the group consisting of S and Te; x is greater than or equal to 0 and less than or equal to 1; y is greater than or equal to 0 and less than 2; subject to the proviso that where x is greater than 0, B′ is not equal to B, the process comprising: effecting conversion of a nanoparticle precursor composition comprising A and B ions, and optionally B′ ions; wherein the conversion is effected in the presence of a selenol compound having the formula R—SeH, wherein R is a substituted or unsubstituted organic compound wherein the R of the selenol compound is incorporated into the nanoparticles as a capping agent.