Our improved PbS/CdS Near IR Quantum Dots range in narrow band fluorescent emission wavelengths from 900 nm to 1000 nm.  These core/shell Quantum Dots have higher quantum yields (are brighter) and have greater wavelength stability relative to the core only PbS quantum dots that are commercially available.  Our water soluble versions of these quantum dots are surface coated with hydrophilic surfactants that make them water solubleOur Longer Near Infrared PbS/CdS  quantum dots can be ordered with surfactant coatings that have a terminal group that is either a carboxylic acid, a primary amine, or a diol (two adjacent hydroxyl groups). These groups allow covalent linking to a wide range of (bio)molecules.

Use the links below to order or see details of each type.

Acid Coating           Amine Coating           Diol Coating