Quantum dot, quantum dot film and LED package and display device including the same
US10450507B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2016 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Sep 30, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/952
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A quantum dot includes a seed and a core enclosing the seed. The core is grown from the seed to improve size uniformity of the core. The seed includes a first compound without Cd. The first compound may be GaP. The core may include a second compound including elements from group XIII and group XV. The second compound may be InP. The quantum dot may also include a first shell of a third compound enclosing the core. The third compound may be ZnSe or ZnS. The quantum dot may also include a second shell of a fourth compound enclosing the first shell. The fourth compound may be ZnS when the third compound is ZnSe. Embodiments also relate to a quantum dot including first to third elements selected from XIII group elements and XV group elements and fourth to sixth elements selected from XII group elements and XVI group elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.