Zinc Sulfide and Copper Indium Disulfide Quantum Dots

The zinc sulfide and copper indium disulfide quantum dots from Strem Chemicals are sold under a distribution agreement with UbiQD, Inc. for research purposes only. US Patent No. US9748422.

Copper Indium Disulfide/Zinc Sulfide Quantum Dots, QY >75%
CAS# 927198-36-5; Available Unit Sizes: 50 mg, 250 mg
Catalog # Peak Emission FWHM
29-8500 550 nm ± 10 nm 115 nm ± 20 nm
29-8510 590 nm ± 10 nm 120 nm ± 20 nm
29-8520 630 nm ± 10 nm 125 nm ± 20 nm
29-8530 680 nm ± 10 nm 130 nm ± 20 nm
29-8540 800 nm ± 10 nm 180 nm ± 20 nm
29-8550 950 nm ± 10 nm 250 nm ± 20 nm

 

Advantages over Traditional QDs

  • Made using safe and scalable non-injection synthesis
  • Free of toxic heavy metals (for example - Cd, Pb) or phosphines
  • Low self-absorption as a result of a large Stokes shift >300 meV
  • Bright PL (up to >75% QY) tunable from 550 to 950 nm
  • Stable PL at elevated temperature in water, air, and various composites

Use and Handling Recommendations

The products are delivered in powder form, and are soluble in non-polar solvents (for example - chloroform, toluene). Standard concentrations are ~5-200 mg/mL for a majority of applications. The dots have been cleaned by dissolution/precipitation three times to develop a dried powder. It is recommended that the product is used within 12 months of receipt.

Product Specifications

. .
QY >75%
Material composition CuInS2/ZnS
Material Form Powder
Compatible Solvents Nonpolar solvents: toluene, chloroform
Particle Size 5-10 nm

Zinc Sulfide and Copper Indium Disulfide Quantum Dots

Characteristic TEM Image
Product Image & Spectra Graph - Peak Emission: 550 nm
Product Image & Spectra Graph - Peak Emission: 590 nm
Product Image & Spectra Graph - Peak Emission: 630 nm
Product Image & Spectra Graph - Peak Emission: 680 nm
Product Image & Spectra Graph - Peak Emission: 800 nm
Product Image & Spectra Graph - Peak Emission: 950 nm

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