Product Introduction:
Quantum dot (QD) films have become an essential component in modern display and optoelectronic technologies, particularly in applications such as high-performance backlight units and color conversion layers. These films rely on semiconductor nanocrystals with precisely controlled optical properties to deliver vivid colors, high brightness, and enhanced energy efficiency. To facilitate the fabrication of high-quality QD films, QD concentrates have emerged as important intermediate materials.
Material Composition
This product features a CdSe/ZnCdSeS/ZnS core–shell nanostructure. In this structure, the CdSe core serves as the primary light-emitting center, while the ZnCdSeS intermediate shell helps optimize the electronic structure and improve photoluminescence efficiency. The outer ZnS shell further passivates surface defects and protects the core from environmental degradation. In addition, the surface of the quantum dots is modified with oleic acid ligands, which provide excellent solubility and dispersion stability in nonpolar organic solvents. This surface chemistry enables the QD concentrate to be easily incorporated into various film-forming systems, ensuring uniform distribution of quantum dots in the final film.
Product Advantages
- High Photoluminescence Efficiency
The optimized CdSe/ZnCdSeS/ZnS core–shell structure enables strong and efficient light emission, allowing the QD concentrates to deliver high brightness in quantum dot film applications.
- Narrow Emission Bandwidth
The materials exhibit a narrow full width at half maximum (FWHM), ensuring high color purity and enhanced color saturation.
The robust multi-shell structure combined with surface ligand protection improves resistance to environmental factors and processing conditions, ensuring consistent optical performance.
The carefully optimized composition helps reduce cadmium content while maintaining excellent luminescent properties, making the material more suitable for advanced optoelectronic applications.
Product Applications
Thanks to its high brightness, narrow emission spectrum, and outstanding stability, this QD concentrate is highly suitable for the preparation of quantum dot films used in advanced display systems. It can be incorporated into polymer matrices or coating formulations to create uniform QD layers with controlled optical density. These films are widely applied in display backlighting, color conversion layers, and other optoelectronic components that require precise color control and high optical efficiency.
Product Parameters
| Catalog Number | Color | PL Emission | FWHM | QY | Solvent | Optical Density (460 nm) |
| NM-QD0333 | Green | 527±2 nm | ≤26 nm | ≥90% | UV monomer IBOA | 55 |
| NM-QD0334 | Green | 532±2 nm | ≤26 nm | ≥90% | UV monomer IBOA | 55 |
| NM-QD0335 | Green | 535±2 nm | ≤26 nm | ≥90% | UV monomer IBOA | 55 |
| NM-QD0336 | Red | 623±2 nm | ≤28 nm | ≥90% | UV monomer IBOA | 85 |
| NM-QD0337 | Red | 628±2 nm | ≤28 nm | ≥90% | UV monomer IBOA | 85 |
| NM-QD0338 | Red | 633±2 nm | ≤28 nm | ≥90% | UV monomer IBOA | 85 |
Typical Coating Formulation
| Component | Content |
| Resin: UV resin, such as polyurethane acrylate | 20% |
| UV Monomer: DCPDA/TCDDA | 72% |
| Photoinitiator: TPO-L | 3% |
| Diffusion Particles: Nano titanium dioxide (200 nm) | 1% |
| Red Quantum Dot Concentrate | 1% |
| Green Quantum Dot Concentrate | 3% |
Leveraging its extensive expertise in nanomaterial development, Alfa Chemistry is dedicated to delivering high-performance QD concentrates tailored for quantum dot film applications. Our comprehensive product portfolio, combined with flexible customization capabilities, enables us to meet a wide range of technical and application requirements. If you are looking for related products, Alfa Chemistry is your ideal partner.
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