Cadmium Selenide ZnS Core Shell (CdSe/Zinc Sulphide Quantum Dots-520nm)

Cadmium Selenide ZnS Core-Shell Type Quantum Dots

Cadmium Selenide (CdSe) ZnS Core-Shell Quantum Dots (QDs) are a popular class of nanomaterials known for their remarkable optical and electronic properties. The core consists of CdSe, a semiconductor material, and is coated with a shell of ZnS to improve the overall properties of the QDs.

Biomedical Imaging and Diagnostics

Fluorescent Imaging: CdSe/ZnS quantum dots are highly luminescent, making them ideal for in vivo and in vitro biological imaging. Their tunable emission wavelengths enable high-resolution imaging at multiple depths within tissues.

Cancer Diagnosis: Due to their narrow and tunable emission spectra, CdSe/ZnS QDs can be used as biomarkers for early-stage cancer detection by targeting specific cancerous cells, providing high contrast in imaging.

Fluorescent Probes: They are used in fluorescent tagging for tracking cells, proteins, or other biomolecules in biological systems.

LEDs and Display Technologies

Quantum Dot Displays (QLED): CdSe/ZnS quantum dots are used in quantum dot-based light-emitting diodes (QLEDs) for high-efficiency displays. Their tunable emission spectrum allows for the creation of displays with vibrant colors, which is useful in consumer electronics such as televisions, monitors, and smartphones.

Backlighting for LCDs: CdSe/ZnS QDs are also used in LCD backlight units to improve color purity and brightness.

Solar Cells

Quantum Dot Solar Cells: CdSe/ZnS quantum dots are being investigated for use in photovoltaic devices, especially quantum dot solar cells. These cells can have a higher efficiency than traditional silicon-based cells because they can absorb a broader range of the solar spectrum.

Light Harvesting: The QDs can be tuned to absorb sunlight at specific wavelengths, improving the efficiency of energy conversion in solar devices.

Photocatalysis

Water Splitting: CdSe/ZnS quantum dots can be used in photocatalysis for hydrogen production through water splitting. They absorb light efficiently and can catalyze the breakdown of water molecules into hydrogen and oxygen, a promising method for clean energy production.