Zinc Selenide Quantum Dots (ZnSe/ZnS QD) 450 nm

Zinc Selenide/Zinc Sulfide (ZnSe/ZnS) Core-Shell Quantum Dots, engineered for a precise 450 nm royal-blue emission, represent the next generation of environmentally friendly semiconductor nanomaterials. Unlike traditional Cd-based dots, these heavy-metal-free nanocrystals offer a sustainable solution without compromising on optical performance. Featuring a wide-bandgap ZnSe core encapsulated by an epitaxial ZnS shell, these dots exhibit exceptional quantum confinement and high photoluminescence quantum yields. The core-shell architecture effectively passivates surface defects, ensuring robust photostability and a narrow emission profile.

Technical Properties

Applications

• Eco-Friendly QLEDs & LEDs: Serves as a high-performance blue emitter for cadmium-free displays and lighting, meeting strict environmental regulations (RoHS) while providing high color purity.
• Advanced Photocatalysis: Utilizes its wide bandgap for efficient light-harvesting in solar-to-chemical energy conversion, specifically in hydrogen production and organic pollutant degradation.
• High-Contrast Biological Markers: Functions as a safe, non-toxic fluorescent probe for cellular imaging and molecular labeling, particularly in studies where cadmium toxicity is a concern.
• Next-Gen Scintillators: Employed in radiation detection and medical imaging devices (like PET scans) due to its fast decay time and efficient conversion of ionizing radiation into visible blue light.
• Blue-Spectrum Solar Cells: Integrated into quantum dot sensitized solar cells (QDSSCs) to improve the spectral response in the high-energy blue and UV regions.
• Nanoscale Sensors: Acts as a sensitive transducer for detecting environmental pollutants and chemical vapors through precise fluorescence quenching mechanisms.