Core-shell semiconductor nanoparticles, production method thereof, and light-emitting device
US12221574B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 15, 2019 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Feb 15, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/0361
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided are core-shell semiconductor nanoparticles, each including a core and a shell disposed on a surface of the core, and emitting light when irradiated with light. The core contains a semiconductor containing M1, M2, and Z, M1 containing at least one selected from the group consisting of Ag, Cu, and Au, M2 containing at least one selected from the group consisting of Al, Ga, In, and Tl, and Z containing at least one selected from the group consisting of S, Se, and Te. The shell contains a semiconductor containing a Group 13 element and a Group 16 element, and having a greater band-gap energy than the core. The shell has a compound containing a Group 15 element disposed on a surface of the shell, and the Group 15 element containing at least P with a negative oxidation number.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.