Fluorescent Nanocrystals (Quantum Dots)
Our range of semiconductor grade fluorescent nanocrystals (offered in both aqueous and organic formulations) has the potential to be used in numerous applications in the field of nanoelectronics and opto-electronics. These include photovoltaics (light capturing materials), solid state LED lighting, biodiagnostics (lab-on a chip), laser applications, fluorescent probes, memory devices, photodetectors, and multiplexing sensors.
Features
- Same size regardless of emission wavelength (5.5-6.5nm).
- Functionalized with Advanced Isolation Mechanism (AIM) Technology™.
- AIM Technology allows for functionalization without significant loss in quantum efficiency.
- Functionalized without a significant increase in quantum dot size or compromised stability.
Alkyl Nanocrystals
CdSxSe1-x/ZnS core/shell fluorescent nanocrystals with alkyl ligand surface.
Available with emission from 450nm to 665nm (custom emission also available)
Emission Spectra
Carboxyl Nanocrystals
CdSxSe1-x/ZnS core/shell fluorescent nanocrystals functionalized with carboxyl(-COOH) ligands.
Features
- Narrow and sharp emission peaks
- Photostable (no bleaching)
- pH Neutral
Amine Nanocrystals
CdSxSe1-x/ZnS core/shell fluorescent nanocrystals functionalized with amine(-NH3) ligands.
Features
- Narrow and sharp emission peaks
- Photostable (no bleaching)
- pH Neutral
Hydroxyl Nanocrystals
CdSxSe1-x/ZnS core/shell fluorescent nanocrystals functionalized with hydroxyl(-OH) ligands.
Features
- Narrow and sharp emission peaks
- Photostable (no bleaching)
- pH Neutral
Available emission wavelengths
| Emission maximum | Laser excitation source | |
|---|---|---|
| Trilite™ 450 | 450  |
Argon laser; UV-light; Blue diode laser; Violet 405 krypton laser |
| Trilite™ 490 | 490  |
Argon laser; UV-light; Blue diode laser; Violet 405 krypton laser |
| Trilite™ 525 | 525  |
Argon laser; UV-light; Blue diode laser; Violet 405 krypton laser |
| Trilite™ 540 | 540  |
Argon laser; UV-light; Blue diode laser; Violet 405 krypton laser |
| Trilite™ 575 | 575  |
Argon laser; UV-light; Blue diode laser; Violet 405 krypton laser; Argon 488 blue-green laser; Nd:YAG laser; Helium-Neon 543 green laser |
| Trilite™ 630 | 630  |
Argon laser; UV-light; Blue diode laser; Violet 405 krypton laser; Argon 488 blue-green laser; Nd:YAG laser; Helium-Neon 543 green laser; Helium-Neon 594 laser; Ar-Kr mixed-gas laser |
| Trilite™ 665 | 665 |
Argon laser; UV-light; Blue diode laser; Violet 405 krypton laser; Argon 488 blue-green laser; Nd:YAG laser; Helium-Neon 543 green laser; Helium-Neon 594 laser; Ar-Kr mixed-gas laser; Helium-Neon 633 laser; Red diode 635 laser |
| Trilite™ Custom Emission |  450 - 665 |
Argon laser; UV-light; Blue diode laser; Violet 405 krypton laser; Argon 488 blue-green laser; Nd:YAG laser; Helium-Neon 543 green laser; Helium-Neon 594 laser; Ar-Kr mixed-gas laser; Helium-Neon 633 laser; Red diode 635 laser |
Surface Chemistry Optimization Panels
Panels with all of our surface chemistries for each available emission wavelength combined into one kit.
Features
- All available surface chemistries in one kit
- Convenient small volume format
Emission Optimization Panels
Kits to optimize quantum dot emission in your particular application.
Features
- Kits available with multiple surface chemistries
- Convenient small volume format
Fluorescent Nanocrystal Properties
Diameter (physical): 5.5-7.0nm
Nanocrystals/mg: 1.2E+15
Molecular Weight: 650,000 Da
Extinction Coefficient: 350000 cm-1M-1
Quantum Efficiency: 55-65% (quantum efficiency for water soluble nanocrystals is approximately 10% lower)
