オプトシリウス List of Products and Services

Quantum dot coating agents are the latest products that mix acrylic UV-curable resins/silicone resins with quantum dots used in LEDs, lighting, displays, biomedical applications, and solar power generation. By applying special treatment before mixing with UV-curable resins, it becomes easier to conduct fundamental research and development prototypes that were previously difficult. The resin used has low viscosity and can cure with ultraviolet light, making it primarily suitable for coating applications. [Key Points for Selection] ● This product allows for the easy formation of a quantum dot coating layer. ● Ideal for fundamental research, development, and prototyping applications. ● Excellent stability against temperature and UV.

Cadmium selenide nanocrystals are cadmium selenide quantum dots coated with multiple layers of zinc sulfide, a semiconductor. The zinc sulfide coating around the cadmium selenide quantum dots serves to stabilize and protect the unique optical properties of the cadmium selenide quantum dots from damage due to environmental influences. Core/shell nanocrystals achieve the same absorption and emission characteristics as the cadmium selenide core while exhibiting brighter luminescence, superior stability, and processability, thereby increasing control over interfacial chemistry. These core/shell nanocrystals are provided in a state stored in water or nonpolar solvents.

Cadmium selenide nanocrystals are well-known single-crystal semiconductor nanoparticles that function as quantum dots. The uniqueness of these quantum dots arises from the fact that their optical and electrical properties vary with particle size, and they offer flexible processing possibilities. The size of these quantum dots ranges from 2 to 7 nanometers, and they possess optical properties across the entire visible spectrum (from blue to red). Typical cadmium selenide quantum dots are inorganic semiconductors coated with organic ligands on their surfaces. These ligands enable the stability, solubility, and processability of these nanocrystals in solvents. Quantum dots absorb a wide range of light and emit limited light. This property allows for the emission of true colors at specific wavelengths when excited by a broad spectrum of light. The luminescent potential of quantum dots is determined by the quality and size distribution of the nanocrystals in the solvent.

Cadmium sulfide nanocrystals are single-crystal semiconductor nanoparticles that are also well-known as quantum dots. The uniqueness of these quantum dots arises from the fact that their optical and electrical properties vary with particle size, as well as from the flexibility of processing possibilities. The size of these quantum dots ranges from 2 to 7 nanometers, and they possess optical properties across the ultraviolet to blue wavelength range. Typical cadmium sulfide quantum dots are inorganic semiconductors coated with organic ligands on their surfaces. These ligands enable the stability, solubility, and processability of these nanocrystals in solvents. Unlike organic dyes, quantum dots absorb a wide range of light and emit limited light. This property allows for the emission of true colors at specific wavelengths by exciting them with a broad spectrum of light. The luminescent potential of quantum dots is determined by the quality and size distribution of the nanocrystals in the solvent.

Iron oxide nanocrystals utilize the strong magnetic properties of iron oxide and are incorporated into nanosized materials. The iron oxide nanocrystals provided by NN-Labs achieve excellent size and size distribution characteristics to enable their use in high-level applications that require strict control over the properties and features of the nanocrystals. These high-quality iron oxide nanocrystals exhibit exceptional magnetic properties as they approach pure bulk iron oxide, and furthermore, they have the ability to be biologically functionalized in numerous applications. NN-Labs' iron oxide products can be provided in a stored state in non-polar solvents or water, or in powder form.

For research and educational purposes, indium phosphide-based quantum dots are a high-quality, environmentally friendly product that replaces cadmium selenide-based quantum dots without containing heavy metals. Cadmium selenide-based quantum dots, which are the flagship product for luminescent emission, are well known for their high toxicity and environmental harm. However, cadmium selenide-based quantum dots are still widely used due to the lack of alternative materials. NN-Labs has developed a product line of quantum dots based on indium phosphide (InP). This product is high-performance while avoiding the use of cadmium, a level A hazardous substance, and can withstand commercial applications with zero cadmium usage.

High-quality cadmium telluride (CdTe) quantum dots for solar cell applications. Compared to conventional silicon solar cell modules, these nanocrystals can be coated on thin, flexible substrates to reduce overall size and cell mass, making them particularly interesting for those researching and developing thin-film solar cells. Furthermore, by employing nanosized particles, it is possible to capture the same level of sunlight with a smaller amount of material. Cadmium telluride (CdTe) quantum dots possess the same level of functionality as other products with excellent size distribution, high stability, and quality.

Gold nanoparticles are of particular interest in the biomedical field due to their potential to utilize biomolecules, and they can be easily observed using a wide range of imaging systems, including UV-visible cameras, TEM, and SEM. Gold nanoparticles are used in a wide range of applications, from plasmonics-related and biosensor development to immunostaining, as well as in chemicals that enhance X-ray contrast and standards for SEM, TEM, UV-VIS cameras, and AFM. These high-quality gold nanoparticles meet NN-LABS' excellent quality control standards, achieving superior particle size distribution, monodispersity, and uniform morphology.

Zinc selenide-doped manganese is a unique product not solely based on size (particle diameter) like conventional quantum dots, but rather due to the dopant impurities within the crystal. These quantum dots offer a very high quantum efficiency of over 60%, excellent stability, and minimal reabsorption. Furthermore, this material does not contain harmful heavy metals such as cadmium, lead, or mercury. D-dots are expected to be utilized in the fields of lighting, biomedicine, and optoelectronics.

NN-LABS has started selling high-performance core-shell structures of CIS (Cu, In, Se) and ZnS (zinc sulfide) that do not contain heavy metals, replacing cadmium-based quantum dots. CuInS/ZnS (CIS) quantum dots have high quantum efficiency and excellent long-term stability, despite being non-toxic and environmentally friendly. The new CIS particles from NN-LABS are expected to serve as excellent alternative materials in the fields of biomedical applications, solar power generation, and LED lighting.