Zinc Selenide Quantum Dots (ZnSe/ZnS QD) 420 nm

Zinc Selenide/Zinc Sulfide (ZnSe/ZnS) Core-Shell Quantum Dots, engineered with a precise emission peak at 420 nm, represent a high-performance solution for short-wavelength optoelectronic and biomedical applications. Featuring a wide-bandgap semiconductor core protected by an epitaxial ZnS shell, these nanocrystals demonstrate exceptional quantum confinement effects and high photoluminescence efficiency. Unlike traditional heavy-metal QDs, ZnSe-based materials are inherently safer and more environmentally sustainable, offering a robust alternative for blue and violet light emission. These quantum dots are highly amenable to doping with transition metals (such as Manganese or Copper) to tune their optical properties and are characterized by an impressively narrow size distribution. Available in concentrations from 25 mg/mL to 100 mg/mL, they ensure high dispersibility and stability for integration into thin-film devices and complex chemical sensors.

Technical Properties

Applications

• Blue-Violet LEDs & Laser Diodes: Acts as an efficient light-emitting layer for pure blue and violet optoelectronic devices, bridging the gap in short-wavelength solid-state lighting.
• Biomedical Markers & Labeling: Serves as a biocompatible, cadmium-free fluorescent probe for high-energy biological imaging, minimizing interference from natural cellular fluorescence.
• Advanced Scintillators: Utilized in radiation detection and medical imaging (like X-ray conversion) due to their ability to convert high-energy ionizing radiation into visible light photons.
• Enhanced Photocatalysis: Leverages its wide bandgap for the photocatalytic degradation of organic pollutants and hydrogen production under UV light irradiation.
• Optical Sensors & Detectors: Integrated into sensitive detection systems for the monitoring of environmental gases and chemicals through fluorescence quenching or enhancement.
• Solar Cell Spectral Shifters: Used in photovoltaic research to harvest high-energy UV photons and down-convert them into usable visible light, increasing the overall quantum efficiency of solar panels.