Cadmium Selenide Quantum Dots (CdSe/ZnS QD) 460 nm

Cadmium Selenide/Zinc Sulfide (CdSe/ZnS) Core-Shell Quantum Dots, precision-engineered for a 460 nm deep-blue emission, represent the cutting edge of short-wavelength semiconductor nanotechnology. These nanocrystals feature a highly uniform CdSe core encapsulated within an epitaxial ZnS shell, a structural design that effectively passivates surface states and eliminates non-radiative recombination pathways. Despite the challenges of maintaining stability at the ultra-small particle sizes required for blue emission, our 460 nm QDs exhibit exceptional photoluminescence quantum yields and remarkable resistance to photo-oxidation. Characterized by a narrow FWHM (Full Width at Half Maximum) and high molar extinction coefficients, these dots provide a vibrant, high-energy signal that is essential for high-fidelity color reproduction and sophisticated optoelectronic transitions.

Technical Properties

Applications

• High-Purity Blue QLEDs: Functions as the primary blue-light emitting layer in advanced display architectures, enabling a broader color gamut and high-energy efficiency for next-generation screens.
• Short-Wavelength Bioimaging: Serves as a high-resolution fluorescent probe for multi-color labeling, providing a stable blue signal that allows for the simultaneous tracking of multiple cellular components.
• Spectral Down-conversion: Utilized in photovoltaic systems to harvest high-energy UV/violet photons and convert them into usable blue light, enhancing the overall efficiency of solar cells.
• Advanced Fluorescence Sensors: Integrated into diagnostic platforms where high-energy blue emission is required for the detection of trace analytes through fluorescence quenching or energy transfer.
• Nano-Photonics & Laser Diodes: Employed in the development of blue laser diodes and optical micro-cavities, leveraging the high-energy density and discrete electronic states of the quantum dots.
• Ultraviolet-to-Blue Converters: Used in specialized lighting applications to modify the output of UV LEDs, creating stable and monochromatic blue light sources for industrial and medical use.