Stack-Tec specializes in the optimization of energy systems. The heart of the company is the production of highly-efficient thin film coatings with different physical properties and functions, e.g. energy-generating and -storing, lighting, heating and cooling. Our portfolio ranges from highly efficient single layer devices up to multi-junction devices. For areas where energy has a relevant financial influence on businesses and markets, our products will provide a crucial competitive advantage. The products are specifically configured to help save energy costs, provide additional functions and increase the efficiency and the level of autarchy.