Large Scale Metal Chalcogenide (e.g. Copper Sulfide) Nanoparticle Synthesis
- Detailed Technology Description
- We offer a method to synthesize high-quality metal chalcogenide (e.g.copper sulfide, cadmium sulfide, etc.) nanoparticles. Our method has demonstrated several orders ofmagnitude increase in batch yield (>200 g) compared to current 0.1−5gefforts.
- Others
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· C. Williamson, D. Nevers, T. Hanrath, R.D.Robinson. “Prodigious Effects of Concentration Intensification on NanoparticleSynthesis: A High-Quality, Scalable Approach” J. Am. Chem. Soc., 2015, 137 (50), pp15843–15851 DOI: 10.1021/jacs.5b10006
· R.D. Robinson, T. Hanrath, C. Williamson, D. Nevers. “Dimensionallyfocused nanoparticle synthesis methodology” Patent Application Number: WO2016054527A1
- *Abstract
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Large scaleimplementation of nanoparticle-based technologies requires efficient and robustsynthesis methods that can consistently produce large quantities ofhigh-quality nanoparticles. We offer amethod that meets these criteria; our method is based on the ‘heat-up method’ anduses previously unexplored high concentrations near the solubility limit of thenanoparticle precursors. In this highly concentrated and viscous regime the nanoparticlesynthesis parameters are less sensitive to experimental variability and therebyprovide a robust and scalable synthesisfor monodisperse sized nanoparticles.
As a proof ofconcept, we demonstrate the ability to synthesize high-quality copper sulfide nanoparticlesapproaching nearly a 1000-fold increasein Cu2−xS batch size (>200g yields) relative to current 0.1−5g efforts. Compared to conventional synthesismethods (typically hot injection with dilute precursor concentration) that relyon rapid growth and result in low yields, our highly concentrated nanoparticlesystem permits remarkably controlled growth rates, a 10-fold increase in nanoparticle volumetric production capacity (86g/L) and highly monodisperse size distributions.
PotentialApplications
- Quantum Dot Synthesis
- Large scale synthesis of:
- Copper Sulfide (Cu2-xS)
- Copper Indium Sulfide (CuInS)
- Lead Sulfide (PbS)
- Cadmium Sulfide (CdS)
- Cu, Pb, Cd, In or Zn Tellurides andSelenides
Advantages
- Narrow distribution of particle sizes
- Production quantity scalable
- Suitable for a diverse range of Metal Chalcogenides
Keywords: Physical Sciences, Chemicals, Catalysts, Materials, Metals, Surface Science, Nanotechnology, Industrial Nanofabrication, Nanoapplications, Nanoparticle Synthesis, Metal Oxides, Metal Chalcogenides
- *Licensing
- Carolyn A. Theodorecat42@cornell.edu607 254 4514
- Country/Region
- USA
