Layers and Coatings
Thin solid films are typically applied as coatings (“nanolayers”) to provide functionality to everyday products from electronics and phone displays through batteries, solar cells and packaging to automotive components and doorknobs.
Advanced Nanolayer Analysis with MP-SPR Technology
With BioNavis’ novel configuration of Multi-Parametric Surface Plasmon Resonance (MP-SPR), we combine plasmonics to reach the Ångström level with a goniometric setup similar to that of ellipsometer to obtain a working range and multiple wavelengths similar to spectroscopic ellipsometry to define refractive index of each measured layer. This provides reliable measurements of thickness and refractive index of nanolayers, their plasmonic properties and surface interactions.
Reasons to choose MP-SPR for measurements of thin solid films:
- Measures ultrathin films from a few Ångström thickness thanks to measurement at wide angular range and multiple wavelengths
- Thickness and refractive index solved simultaneously using LayerSolver™
- Extremely sensitive instruments for real-time adsorption kinetics on surfaces
- From dry to wet state with the same configuration – MP-SPR works in both states due to its goniometric configuration
- Cross-validation with microscopy and modelling is possible
- Measurements do not require vacuum
- Measurements can be performed in organic solvents
Use MP-SPR to
- Select the best barrier (non-stick / antireflective / moisture) coating
- Determine the minimum required thickness of nanolayers for desired functionality
- Assess the quality of the coating
- Find the coating process that provides homogeneous layer
- Determine the time needed for nanoparticles to assemble on the surface
- Find the ideal pH and electric potential conditions for the coating process
- Assess layer swelling in contact with gas, moisture or solvent
- Measure the SPR response of metal layers
- Easy handling of sensor slides for ex situ modification
We have a wide range of ready made sensor surfaces to choose from, or you can make your own coatings in your premises. We are glad to provide our expertise and measure your samples in our facilities.
Discover the world of MP-SPR
Selected application notes
Frequently asked questions
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How can adsorption within porous coatings be measured?
MP-SPR detects refractive index changes inside porous coatings, providing data on molecular adsorption. This is critical for optimizing porous materials for specific applications.
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How can adsorption within coatings be measured?
MP-SPR detects refractive index changes inside coatings, providing data on molecular adsorption. This is critical for optimizing materials for specific applications.
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Does MP-SPR analyze the hydration of coatings?
Yes, MP-SPR monitors optical thickness shifts caused by water uptake. By measuring the coated material in air and then in water, it is possible to extrapolate the water content associated with the film.
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How can responsive coatings be studied?
MP-SPR captures dynamic optical changes in coatings that respond to stimuli such as temperature, electric potential, pH, or light. This is valuable for developing smart stimuli-responsive materials.
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Can QCMD evaluate the durability of coatings under stress?
Yes, QCMD monitors coating degradation or delamination under conditions such as chemical exposure or mechanical stress. This helps assess coating robustness and performance over time.
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Is QCMD useful for analyzing multi-layered coating systems?
Yes, QCMD can distinguish individual layers in multi-layered coatings by monitoring sequential changes in mass and dissipation during deposition of each layer. This is critical for optimizing complex coating designs.