Product Name: Visible Water Soluble CdSe/ZnS core shell quantum dots, 640 nm

Specifications:
Chemical Composition
CdSe/ZnS
Surfactant coating – Acid (yy = Ac)
Thiol w/ carboxylic acid end group
Surfactant coating – Amine (yy = Am)
Thiol w/ primary amine end group
Surfactant coating – Diol (yy = OH)
Thiol with 2 adjacent hydroxyl end group
Diameter of core
5.0 nm
Diameter of core plus shell
6.8 nm
Fluorescent Emission Peak
640 nm ±10 nm
Emission Peak Width (FWHM)
42
Absorption coefficient at first exciton peak
4.1 x 105 Liters/mole-cm
Molecular Weight, core + shell 4.75 x 105 g/mole
Shelf life ≥1 yr if stored in dark between -15 and 8˚C
 
Spectra:
QD640_Spectra