Graphene Quantum Dots by Strem Chemicals

Table of Contents

Graphene Quantum Dots
Suggested Applications

96-7410 Graphene Quantum Dots (GQDs) Master Kit 1 kit
This Master Kit contains all items currently included in the Mini Kits, 96-7420 and 96-7425, which are listed below with their contents and details. Each Mini Kit is also available for individual sale. All kit components are also available for individual sale.

96-7420 Graphene Quantum Dots in water (GQDs) Mini Kit (Liquids) 1 kit
Item # Description Color & Form Photoluminescence
QY+ * λmax * Max emission FWHM *
06-0332 Graphene Quantum Dots (GQDs) in water, Aqua-Green Luminescent cloudy orange liq. >17% 485 nm 525 nm 70 nm
06-0336 Graphene Quantum Dots (GQDs) in water, Blue Luminescent cloudy colorless liq. >65% 350 nm 445 nm 65 nm
06-0340 Graphene Quantum Dots (GQDs) in water, Cyan Luminescent cloudy brown liq. >25% 420 nm 490 nm 80 nm
This kit contains 100 ml of each product listed above. Components are available for individual sale.
Particle diameter: <5 nm
Topographic height: 1.0 - 2.0 nm
Concentration: 1 mg/ml
Storage and Handing: Use within 6 months of purchase. Do not freeze. Store in the dark.

96-7425 Graphene Quantum Dots (GQDs) Mini Kit (Powders) 1 kit
Item # Description Color & Form Photoluminescence
QY+ * λmax * Max emission FWHM *
06-0330 Graphene Quantum Dots (GQDs), Aqua-Green Luminescent dark red-brown pwdr. >17% 485 nm 525 nm 70 nm
06-0334 Graphene Quantum Dots (GQDs), Blue Luminescent dark brown pwdr. >65% 350 nm 445 nm 65 nm
This kit contains 100 mg of each product listed above. Components are available for individual sale.
Particle diameter: <5 nm
Topographic height: 1.0 - 2.0 nm
Storage and Handing: Use within 6 months of purchase. Do not freeze. Store in the dark.

* Abbreviations
QY+ Quantum Yield
λmax Maximum excitation wavelength
FWHM Full width at half maximum

Watch for the below product coming soon!
06-0338 Graphene Quantum Dots (GQDs), Cyan Luminescent dark brown pwdr. >25% 420 nm 490 nm 80 nm

Graphene Quantum Dots

There are five major characteristics:

  • Anti-bacterial properties
  • Non-toxic
  • Lower in price
  • Significantly higher QY (more than 75%)
  • Mass production is possible

Aqua-Green Luminescent 06-0330 and 06-0332

Blue Luminescent 06-0334 and 06-0336

Cyan Luminescent 06-0338 and 06-0340

Optical images of GQDs powder suspended in water under visible (left) and 365 nm UV light (right).

Suggested Applications

Graphene quantum dots, or GQDs, are sheets of few-layered graphene and have lateral dimensions smaller than 100 nm. They have strong edge effects and quantum confinement and therefore, they have distinctive physical properties such as strong photoluminescence, which can be customized for specific applications by controlling their functionality, defects, shape and size.

Contrary to classic QDs, such as silicon or metal quantum dots, GQDs are photostable, biocompatible and inherit superior mechanical, electrical and thermal properties from the graphene. These features can significantly contribute to various sophisticated applications:

  • Optical brighteners
  • Taggants for security application1
  • Bioimaging markers2
  • Fluorescent polymers3
  • Antibacterial4, antibiofouling5 and disinfection systems6
  • Heavy metals7, humidity and pressure8, sensors
  • Batteries9
  • Flash memory devices10
  • Photovoltaic devices11
  • Light-emitting diodes12

Find Out More About Graphene Quantum Dots

References

1. http://onlinelibrary.wiley.com/doi/10.1002/anie.201206791/abstract  

2. http://onlinelibrary.wiley.com/doi/10.1002/ppsc.201400219/abstract  

3. http://pubs.acs.org/doi/abs/10.1021/acsami.5b06057  

4. http://pubs.acs.org/doi/abs/10.1021/acsami.6b01765  

5. http://www.nature.com/articles/srep20142  

6. http://pubs.acs.org/doi/abs/10.1021/nn501640q  

7. http://www.sciencedirect.com/science/article/pii/S0013468615000468  

8. http://pubs.acs.org/doi/abs/10.1021/nl4003443  

9. http://pubs.acs.org/doi/abs/10.1021/nl504038s  

10. http://iopscience.iop.org/article/10.1088/0957-4484/25/25/255203/meta  

11. http://onlinelibrary.wiley.com/doi/10.1002/anie.200906291/abstract  

12. http://link.springer.com/article/10.1007/s10853-012-7016-8

This information has been sourced, reviewed and adapted from materials provided by Strem Chemicals.

For more information on this source, please visit Strem Chemicals.

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