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CdSeTe/ZnS Quantum Dots, NIR region, Water solvent, 720nm

Typical Properties
Catalog ACMA00021741
Molecular Weight 1.82 x 105 g/mole
Purity 99.9 %
Appearance Dispersion
Storage Shelf life ≥ 1 yr if stored in dark between -15 and 8 °C
Absorption coefficient at first exciton peak 7.5 x 104 Liters/mole-cm
Composition CdSeTe/ZnS
Diameter 2.8 nm
Diameter of core plus shell 4.6 nm
Emission Peak Width 41 nm
Fluorescent Emission Peak 720 nm
Functional Group Thiol molecule terminated with Acid, Amine or Diol
Quality Level 100
Quantum Yield ≥ 70 %
Shipping Ambient Temperature
Solvent Water
Surfactant Coating Thiol with carboxylic aicid/primary amine/2 adjacent hydroxyl end group
Overview
Description

Our cadmium-based near-infrared water-soluble quantum dots with narrow-band fluorescence emission wavelengths ranging from 700 nm to 880 nm are highly luminescent CdSeTe/ZnS core/shell complexes. These quantum dots are coated with a hydrophilic surfactant to enable dispersion in water. Three different water-soluble forms have surfactant end groups, which are carboxylic acids (-COOH), primary amines (-NH2), or diols (-CHOH-CH2OH). These coatings allow QDs to be covalently bonded to various molecular probes and surfaces for many fluorescent labeling applications.

Features

·Uniform particle size
·Strong monodispersity
·Broad absorption spectrum
·High level of photoluminescence
·Excellent stability

Application

·Fluorescent probes
·Solar battery
·In vivo bioimaging
·Microbial detection
·Drug carrier