Description
Lead Sulfide Quantum Dots (PbS QDs) – 950 nm
Lead Sulfide Quantum Dots (PbS QDs) are near-infrared (NIR) nanomaterials with outstanding optical and electronic properties. With an emission peak at 950 nm, these QDs provide tunable absorption and emission through quantum confinement, enabling precise control of their bandgap by adjusting particle size. This makes them highly adaptable for a broad spectrum of applications ranging from infrared photodetectors to next-generation photovoltaics.
PbS QDs are notable for their broad spectral response, long exciton lifetimes, strong NIR luminescence, and high carrier mobility, offering superior performance in optoelectronic devices, solar cells, and biomedical imaging. Their unique combination of stability and tunability makes them one of the most versatile materials in the quantum dot family.
At Nanographenex, we provide high-purity PbS QDs (950 nm) with controlled size distribution, reliable optical quality, and excellent dispersibility. These materials are suitable for both research laboratories and industrial-scale production, ensuring reproducibility and performance for advanced applications.
Product Overview
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Material: Lead Sulfide Quantum Dots (PbS QDs)
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Emission Peak: 950 nm (NIR region)
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Key Features: Size-tunable bandgap, strong NIR absorption, broad emission spectrum
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Advantages: High stability, long exciton lifetime, strong photoluminescence efficiency, excellent carrier transport
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Applications: Photodetectors, LEDs, solar cells, energy systems, transistors, biomedical devices
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Customization: Available in various particle sizes, solvents, and concentrations to meet application needs
Nanographenex PbS QDs are manufactured under strict quality assurance, making them ideal for scientific research, optoelectronics, renewable energy, and bioimaging technologies.
Applications
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Photodetectors & Infrared Sensors:
PbS QDs with 950 nm emission are highly effective in infrared photodetectors for night vision, fiber-optic communication, environmental monitoring, and LIDAR systems. Their tunable absorption enhances detection sensitivity and selectivity. -
Light Emitting Diodes (LEDs):
PbS QDs can be utilized in NIR LEDs for optoelectronic circuits, secure communication systems, and medical devices requiring near-infrared light sources. -
Transistors & Electronics:
Due to their high carrier mobility, PbS QDs are suitable for thin-film transistors (TFTs) and other next-generation semiconductor devices, supporting improved electronic performance. -
Photovoltaics & Solar Cells:
PbS QDs are key materials in quantum dot solar cells, where their absorption into the NIR region increases solar spectrum utilization. Their tunable bandgap makes them effective in tandem and multi-junction solar architectures. -
Electrocatalysis & Energy Systems:
PbS QDs show potential in electrocatalytic reactions, including hydrogen evolution and oxygen reduction, which are essential for renewable energy storage and conversion technologies. -
Biomedical Imaging & Diagnostics:
Emission at 950 nm lies in the NIR window, offering deep-tissue imaging, reduced scattering, and high-resolution bioimaging. These properties make them valuable in non-invasive diagnostics and biosensing platforms.