Quantum Dots（QDS ) is a quasi zero dimension of nano materials, composed of a small number of atoms. Three dimensions of the quantum dot size are below 100nm , quantum dots is spherical , commonly made of semiconductor materials ( usually by the IIB ~ VIA or IIIA ~ VA elements ), the stability of the 2~20nm in diameter of nanoparticles. Quantum dot is a collection of atoms and molecules in nanoscale, can be composed of a semiconductor material, such as IIB. VIA group elements (such as CdS and CdSe, CdTe and ZnSe, etc.) or IIIA. VA group elements (such as InP, InAs), can also be composed of two or more than two kinds of semiconductor materials. As a kind of novel semiconductor nanomaterials, quantum dots have many unique properties, has become one of the most high-profile new materials industry today, can be widely used in touch display, light-emitting devices, solar cells, catalyst, biomarkers, and the biomedical sciences.

Parameters of CdSe/ZnS oil-soluble & core-shell structure of quantum dots :

1. The emission wavelength error : ±2nm    2. Ultraviolet absorption half peak width: 20nm

3. Surface function groups: oleic acid   4. Storage: 5-25℃  5. Optional solvent : Toluene, cyclohexane, acrylic monomer.   6.  Shelf life: 12months

CdSeZnS Quantum Dots Excitation Effect

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