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Cd Free Core/Shell Quantum Dots – Organic Soluble


NOM Cd Free, Organic Soluble, Visible Quantum Dots have  fluorescent emission wavelengths ranging from 540 nm to 660 nm. They may be ordered in weights of 10, 25, 50, and 100 mg starting at $195.  The are normally dispersed in toluene, but other solvents are available by request.

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For applications where the toxicity of Cd based Quantum dots (QDs) limits their use, NanoOptical Materials offers Cd Free Quaternary Quantum Dots  (Q-QDs) composed of CuInZnS cores surrounded by a shell of ZnS.  These Cd Free QDs share the nearly ideal luminescent properties of other QDs because of their high brightness, strong optical absorbance over a wide excitation wavelength range, photostability and defined emission spectra.  Compared to Cd based QDs, CuInZnS/ZnS have larger FWHM bandwidths (95 to 125 nm) and lower Quantum Yields (30% to 50%).  These nanomaterials are finding a wide range of applications in a number of applications such as in vivo diagnostics, product packaging, and consumer products and in applications where their wider bandwidths are an advantage

The organic soluble forms of these quantum dots are surface coated with organic surfactants that make them lipophilic and dispersable in organic solvents such as toluene, chloroform, and hexane. These high quality Cd Free CuInZnS/ZnS core/shell QDs are available over the wavelength range of 540 nm to 660 nm, starting at $145. They are normally dispersed in toluene but other solvents available by request.  Click the product code links in the description table below to see specifications and spectra. (Water soluble forms are also available.)

                                             Available CuInZnS/ZnS Core/Shell Organic Soluble Quantum Dots
Product Code Emission Peak Center (nm) ± 10 nm Coating End Functional Group
 CIZS540-OS  540  Alkane
CIZS560-OS  560  Alkane
CIZS580-OS 580  Alkane
CIZS600-OS 600   Alkane
CIZS620-OS 620   Alkane
CIZS640-OS 640   Alkane
CIZS660-OS 660   Alkane
. We encourage you to Contact Us for questions or special requirements.


Additional information

Weight (mg)

10, 25, 50, 100

Wavelength (nm)

540, 560, 580, 600, 620, 640, 660, Specify 3