CdSe Znse Core Shell Nanoparticles (CdSe/ZnSe, 99.9%, APS: 80-100nm, Inorganic (Semiconductor) Core/Shell Nanoparticles)

CdSe Znse Core-Shell Nanoparticles

CdSe/ZnSe core-shell nanoparticles are advanced semiconductor nanomaterials that consist of a cadmium selenide (CdSe) core and a zinc selenide (ZnSe) shell. These nanoparticles combine the unique optical and electronic properties of CdSe with the enhanced stability and improved photophysical characteristics provided by the ZnSe shell. The core-shell structure helps to mitigate some of the toxicity concerns associated with Cd-based quantum dots while enhancing their photoluminescence and stability. This makes CdSe/ZnSe core-shell quantum dots suitable for various high-performance applications in fields such as biomedical imaging, optoelectronics, and energy harvesting.

Applications

Biomedical Applications

Fluorescent Imaging: CdSe/ZnSe quantum dots are widely used for biological imaging due to their high fluorescence intensity and size-tunable emission spectra. These quantum dots can be used for in vivo and ex vivo imaging, enabling the tracking of cells, tissues, and organs with high resolution.

Drug Delivery and Targeted Therapy: Functionalized CdSe/ZnSe quantum dots can be used in targeted drug delivery systems for cancer therapy and other diseases. The high surface area and ability to functionalize these quantum dots with targeting ligands allow them to deliver therapeutic agents specifically to diseased cells.

Biosensing and Diagnostics: Due to their bright fluorescence and surface tunability, CdSe/ZnSe quantum dots are used in biosensing applications for the detection of biomarkers, pathogens, or environmental toxins. Their multiplexing capability allows for the simultaneous detection of multiple targets in diagnostic assays.

Cell Imaging and Tracking: CdSe/ZnSe quantum dots can be used in cellular imaging and cell tracking to study processes such as cell migration, proliferation, and differentiation over time. Their bright fluorescence allows for long-term imaging without significant photobleaching.

Optoelectronic Devices

Quantum Dot LEDs (QLEDs): The tunable emission and high quantum efficiency of CdSe/ZnSe core-shell quantum dots make them excellent candidates for quantum dot-based light-emitting diodes (QLEDs). These devices are used in displays, lighting, and backlighting applications due to their vivid colors and high energy efficiency.

Solar Cells: CdSe/ZnSe quantum dots are also used in quantum dot solar cells (QDSCs). The ability to tune the absorption spectrum of quantum dots enables better utilization of the solar spectrum, improving the efficiency of solar cells by harvesting both visible and infrared light.

Photodetectors: These quantum dots are used in photodetectors and light sensors, where their high sensitivity and wide spectral response are valuable for detecting low-intensity light and enabling high-performance imaging.

Photonic and Quantum Devices

Quantum Computing and Cryptography: CdSe/ZnSe quantum dots are being studied for their potential use in quantum computing and quantum cryptography. Their discrete energy levels and size-dependent optical properties make them suitable for use as qubits or as part of quantum communication systems.

Photonic Devices: The ability to control the optical properties of these quantum dots allows for their integration into photonic devices, such as lasers, optical modulators, and waveguides, which are key components in communication systems and photonics-based technologies.