| 摘要 |
A scalable method for the manufacture of narrow, bright, monodisperse, photo-luminescent quantum dots prepared in the presence of a Group II-VI molecular seeding cluster fabricated in situ from a zinc salt and a thiol or selenol compound. Exemplary quantum dots have a core containing indium, phosphorus, zinc and either sulfur or selenium. |
| 主权项 |
1. A method of forming a quantum dot (QD), the method comprising:
reacting a group III precursor with a group V precursor to form a semiconductor core in the presence of a molecular cluster compound, the molecular cluster compound formed in situ by the reaction of a zinc precursor and a chalcogen precursor, wherein
the zinc precursor is any one of zinc acetate and zinc stearate,the chalcogen precursor is any one of 1-dodecanethiol, thiophenol, and 1-octane selenol, andthe group III precursor, the zinc precursor and the chalcogen precursor are present in a single reaction vessel prior to the in situ formation of the molecular cluster compound, and whereinthe reacting of the group III precursor with the group V precursor comprises:
heating a mixture comprising the group III precursor, the group V precursor, the zinc precursor and the chalcogen precursor at a first temperature sufficient to dissolve the group III precursor, the group V precursor, the zinc precursor and the chalcogen precursor, andheating the mixture to a second temperature sufficient to initiate growth of the QD. |
