THIN FILM ANALYSIS & MATERIAL SCIENCE

tec5USA Equipment Applications for Thin Film Analysis

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Glass Coating Analysis

The analysis of glass coating is important to be able to provide coated glass products that meet certain performance criteria, including tinting, visible transmission, and thermal insulation. Monitoring the coating process in-situ via thin film measurement techniques is key to ensure consist and high quality product. 

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Glass Coating Analysis

Thin films are typically deposited on glass surfaces via physical vapor deposition, where a source material is evaporated at high temperature and directed to the surface. Depending on the complexity of the stack of materials being deposited, thin film measurement techniques are employed through the deposition process to ensure that the correct layer thickness is deposited. Using a tec5USA multichannel in-line thin film solution, the deposition layers can be very accurately measured for each layer, ensuring that the optimal amount of material is deposited for the specified performance parameters, such as infrared reflectivity or opacity.

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    Typical applications include white light interference for thin film analysis, UV absorption of proteins for quantitative analysis, colorimetry, impurity detection in water, cleaning validation for API manufacturing, polymerization inhibitor monitoring, electroplating bath monitoring....

    The spectroscopic methodology is determined by which parameters are important to monitor during a process. For example, if you want to monitor protein concentration in a bioreactor, in which the biosynthesis takes place in an aqueous medium, then you likely would want to use Raman spectroscopy for the application, as water does not contribute to the Raman signal. Alternatively, if moisture content is important, water has very strong absorption in the NIR due to several vibrational and combination modes that can be monitored; water is transparent in the UV and visible spectral region. Understanding which chemical is important as there could be various factors that influence the choice of methodology....

    NIR spectroscopy is utilized across a variety of industries for qualitative and quantitative product analysis. Typical industries include Chemistry, Pharmacology, Food Feed & Beverage, Agriculture, and others. NIR spectroscopy is well suited for species containing C-H, N-H & O-H bonds, making it a wide-range technology for a variety of applications such as moisture, fat, oil, alcohol, APIs, polymers, etc....

    Raman spectroscopy is a technique which is used for several markets. These industries include Oil and Gas, Pharmacology, Biotechnology, Petrochemistry and many others. Due to the high selectivity of Raman spectroscopy, it is a powerful tool for many applications including, hydrocarbon analysis, bioreactor protein monitoring, crystallization monitoring, API concentration, polymer identification, surfactant analysis, natural gas components and several others....

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