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High performance thin film for energy saving windows

Reference number
Coordinator MIMSI Materials AB
Funding from Vinnova SEK 300 000
Project duration October 2017 - April 2018
Status Completed
Venture Innovative Startups

Purpose and goal

Thin silver layers are a critical functional component of modern low-emissivity (low-e) coatings used in energy saving window applications. MIMSI Materials has developed a high performance thin film material that is a significant improvement over state-of-the-art silver (Ag) films used by the glass industry. The goal of the project was to verify that MIMSI Materials´s thin film innovation could meet or exceed customer requirements in a pre-production environment. The project goals were met for a layer thickness range of relevance to several application segments.

Expected results and effects

Using project partner Fraunhofer IST´s inline coater equipment, the performance of MIMSI-Ag layers were compared against an industry-standard Ag reference layer. The MIMSI-Ag layers exceeded industry best practice, i.e., a 10% layer thickness reduction was achieved for a sheet resistance of relevance to high-end low-e window applications. The positive results empower MIMSI Materials to enter commercial discussions with market leading coated flat glass vendors, with the promise of substantially increasing market adoption of this energy saving technology.

Planned approach and implementation

The planning and implementation of the project encompassed extensive preparation prior to the visit, including setting up a collaboration agreement with Fraunhofer IST to regulate IPR and also theoretical and experimental investigations. The verification activity was performed by two technology experts of the MIMSI team. They traveled to Fraunhofer´s facility in Germany, and over a 1-week period carried out a multitude of planned experiments and characterisation/analysis, with oversight and support from Fraunhofer experts.

The project description has been provided by the project members themselves and the text has not been looked at by our editors.

Last updated 26 March 2019

Reference number 2017-04059

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