ZnO Quantum Dots and Nanoparticles of a Superior Quality
NANOXO Zinc Oxide quantum dots (ZnO QDs) are of unprecedented quality.
They have significantly better chemical and physical properties than their counterparts currently being produced by the most popular sol-gel method.
Organometallic approach
The organometallic approach developed by Nanoxo allows for manufacturing defect-free ZnO QDs with novel physicochemical properties such as long-term stability, monodispersity, a relatively high quantum efficiency, record-long luminescence lifetimes and EPR silence under standard conditions.
The unique features of the tightly coordinated and impermeable organic shells stabilizing the surface make the new ZnO quantum dots resistant to both chemical and biological environments
- True, non-toxic, bio-safe
- UV absorption up to 400 nm (depending on product version)
- Luminescence lifetime up to µseconds
- Tunable color emission (480 – 570 nm)
- High quantum yield and brightness
- Size tunable (2 – 10 nm)
- Possibility of attaching custom chemical groups for further coupling (click chemistry)
- Hydrophilic or hydrophobic (dependent on product version)
- Long term stability
- Do not aggregate into clusters
- Different shapes
- Scalability
High-quality Uncoated Zinc Oxide Quantum Dots (Nanoparticles)
- Superior nanocrystal quality in comparison to sol-gel derived ZnO QDs
- Well–soluble in DMSO – no agglomeration in time
- Lack of bulky organic coating – excellent electrical contact
- No surface defects – improved charge separation and stability
- High-purity ZnO without any added process metal impurities
General properties
Appearance | White, air-stable powder |
Excitation | 330 nm ± 5 nm |
Emission (max.) | 530 nm ± 5 nm |
FWHM | 135 nm ± 5 nm |
Core size | 2 – 10 nm |
Solubility | A colloidal solution in DMSO |
Zinc oxide is a kind of pure white powder, which is composed of amorphous or needle like small particles. As a basic chemical raw material, it has a wide range of applications, such as rubber electronics, medicine, coatings and other industries. Zinc oxide can be used as white pigment in printing and dyeing, papermaking, match and pharmaceutical industry. In rubber industry, it is used as vulcanizing agent, reinforcing agent and colorant of natural rubber, synthetic rubber and latex. It is also used in the manufacture of pigment zinc chrome yellow, zinc acetate, zinc carbonate, zinc chloride, etc. In addition, it is also used in electron laser materials, phosphors, feed additives, catalysts, etc. In medicine, it is used to make ointment, zinc paste, rubber paste, etc.
