Preparation of metal chalcogenides from reactions of metal compounds and chalcogen
US7393516B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Feb 2, 2004 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Feb 2, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/777
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of preparing metal chalcogenides from elemental metal or metal compounds has the following steps: providing at least one elemental metal or metal compound; providing at least one element from periodic table groups 13-15; providing at least one chalcogen; and combining and heating the chalcogen, the group 13-15 element and the metal at sufficient time and temperature to form a metal chalcogenide. A method of functionalizing the surface of semiconducting nanoparticles has the following steps: providing at least one metad compound; providing one chalcogenide having a cation selected from the group 13-15 (B, Al, Ga, In, Si, Ge, Sn, Pb, P, As, Sb and Bi); dissolving the chalcogenide in a first solution; dissolving the metal compound in a second solution; providing and dissolving a functional capping agent in at least one of the solutions of the metal compounds and chalcogenide; combining all solutions; and maintaining the combined solution at a proper temperature for an appropriate time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.