Quantum Dots for Sale | Fluorescent & Semiconductor Nanoparticles

Quantum Dots

Though quantum dots may sound like a cutting-edge invention of the 21st century, the science behind them is rooted in nature’s most fundamental behaviors. Long before the term quantum confinement was coined, artists in the 19th and early 20th centuries unknowingly worked with pigments like cadmium yellow and selenium based reds that contained nanoscale particles exhibiting size-dependent optical effects. These materials subtly demonstrated behaviors we now associate with quantum dots: light absorption and emission based on particle size. Today, those same principles are leveraged with precision in modern Quantum dots technologies transforming fields like bioimaging, displays, photovoltaics, and diagnostics.

At Higgsmond, we can supply precision-engineered quantum dots tailored for breakthrough research and commercial product development. As an India based nanomaterials trading company with a global sourcing network, we can offer high-purity, size-controlled, and functionally customized QDs suitable for industries spanning electronics, photonics, life sciences, energy, and sensors. Our portfolio includes carbon-based, perovskite, and traditional semiconductor quantum dots, available in a variety of aqueous and organic dispersions, with surface modifications optimized for your specific application.

What Makes Quantum Dots Unique?

Color from Size, Not Composition – Quantum dots emit different wavelengths of light based on particle size.
High Photostability – Resistant to photobleaching, ideal for long-term imaging and diagnostics.
Ultra-Bright Fluorescence – Strong, tunable luminescence with minimal energy input.
Broad Absorption + Narrow Emission – Enables multiplexing and high-contrast imaging or display output.
Energy Efficiency – Power-saving solutions for QLED displays and next-gen solar cells.

Carbon Nanomaterial Product Range

Cadmium Selenide (CdSe) QDs - Bioimaging, displays, optoelectronics
Indium Phosphide (InP) QDs - RoHS-compliant, heavy-metal-free QLEDs and consumer electronics
Zinc Sulfide (ZnS) Capped Core/Shell QDs - Enhanced fluorescence, reduced toxicity
Carbon Quantum Dots (CQDs) - Bioimaging, photocatalysis, biosensors, LEDs
Perovskite Quantum Dots (CsPbX₃; X = Cl, Br, I) - High-luminance displays, solar cells, photodetectors
Silicon Quantum Dots - Medical diagnostics, photonics, low-toxicity labeling
Graphene Quantum Dots (GQDs) - Fluorescent tagging, photothermal therapy, environmental sensing

Specifications

Particle Size Range: ~2–10 nm
Surface Functionalization: Amine, Carboxyl, PEGylated, Ligand-Free, Custom Chemistries
Dispersions Available In: Water, Toluene, Ethanol, DMSO, or Application-Specific Solvents
Emission Range: Tunable from UV to Near-IR (400–850 nm)
Purity: ≥99.5%, with low-metal and RoHS-compliant formulations available
Structure Options: Core, Core/Shell, Alloyed, Doped, and Multi-shell Architectures

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Frequently Asked Questions

Quantum dots (QDs) are nanoscale semiconductor particles that emit light based on their size, not chemical composition. Unlike traditional dyes or fluorophores, they offer brighter fluorescence, better photostability, and tunable emission from UV to near-infrared ranges.

Our quantum dots can be tuned to emit anywhere between ~400 nm (UV) and 850 nm (near-IR), enabling precision color control for QLED displays, photodetectors, and multiplexed bioassays.

We supply QDs in water, toluene, ethanol, DMSO, or customized solvents depending on the required polarity, application, or integration method (e.g., printing, coating, injection, or film formation).

Quantum dots are used in fluorescent tagging, biosensing, and deep-tissue imaging due to their intense brightness, size-tuned emission, and resistance to photobleaching—making them ideal for real-time or multiplexed imaging.

Higgsmond provides high-spec, globally sourced quantum dots tailored for Indian researchers and manufacturers. We combine reliable supply chains and regulatory compliance for both R&D and commercial deployment.