Conductive pastes using bimodal particle size distribution
US11254825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2019 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Apr 20, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B1/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Monodispersed metal nanoparticles are prepared by preparing a homogeneous metal complex solution by mixing metal salt with a complexing agent in solvent. A precipitating agent is added into the homogeneous metal complex solution to form a slurry. A homogeneous mixture of reducing agent and solvent is added to perform reducing reaction on the slurry to form metal nanoparticles in a controlled environment under gas purge. A capping agent is added to modify surface properties of metal nanoparticles. The metal nanoparticles are washed and the metal nanoparticles are recovered by phase extraction or centrifugation. The technique can be used to prepare conductive pastes with bimodal particle size distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.