Thin solid film
SPR for thin solid film characterization
Solid state films are often used as coatings (nano layers) to provide functionality for everyday products such as electronics, mobile phone displays, batteries, solar cells, packaging technology, auto parts and door handles. For example, copper and silver films are used as antimicrobial coatings to keep surfaces clean and hygienic. Ultra thin layer or nano Au/Ag provide plasma properties for future electronic products and biosensors. Alumina film can be used as barrier packaging material for food in the future. Nanocoating can be used to adjust the optical properties of optical elements and jewelry. In addition, new carbon based materials are entering all areas of the market.
In recent years, the manufacturing process has been greatly improved, thus saving the amount of materials needed to form a uniform coating. Therefore, thinner and thinner coatings must be analyzed, and the limitations of traditional methods are often encountered. Sensby uses plasmon to measure the thickness and refractive index of the nano layer, reflecting its plasma characteristics and molecular surface interaction.
Sensby brings SPR from drug discovery to semiconductors
Thickness and refractive index of ultrathin film: surface plasmon resonance (SPR) technology has been used in the field of drug research and development for more than 20 years. Thin metal film is used for biosensor to determine its true thickness.
Composite properties: Another area are the composites. The mixtures are formed from nanoparticles of different sizes, size, charge. The properties of the final product are heavily influenced by the surface properties of the nanoparticles and hence their forces towards other nanoparticles. SPR is a tool to design the nanoscale properties in order to control the final product.
Barrier coating quality: SPR can work in air, steam and liquid including solvent. It measures the process dynamics from dry to wet. It's easy to choose the best barrier coating for solar cells, displays, food packaging or implants.
Lubricant adsorption: SPR provides information on lubricant adsorption kinetics and layer mass.
See six reasons for choosing SPR to measure thin solid films:
1. Lubricant adsorption: SPR provides information on the kinetics of lubricant adsorption and the quality of the Ångström thickness layer.
2. Thickness and refractive index of the molecular layer were measured simultaneously
3. The most sensitive instrument for real-time measurement of surface adsorption kinetics
4. Dry and wet state, the same solution for the same configuration
5. The ability to cross verify the combination of microscopy and modeling
6. It can be measured in organic solvent without vacuum treatment
