Method for preparation of magic-sized nano-crystalline substance
US10865109B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2016 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Jul 8, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L21/02601
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A method for preparing a magic-sized nano-crystalline substance, wherein a component containing at least one metal element of groups IIB, IIIA and IVA in the periodic table, and a component containing at least one non-metal element of groups VIA and VA are used as raw materials. In a reaction system for preparing a conventional nano-crystalline substance and in an inert gas atmosphere, after heating the reaction, reactants are cooled to a temperature 50% lower than the actual heating temperature of the reaction thereof, and after standing, the target product of the magic-sized nano-crystalline substance is obtained. The required pure target product can be obtained by the preparation method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.