We are committed to enhancing our chemical vapor deposition (CVD) technology in addition to sputtering technology. These technologies are used for energy-saving components, water repellant glass, substrates for solar cells and components for display devices. Applications of our coating technology have been extended to film substrates from conventional glass substrates.

Tandem thin film silicon solar cells consist of glass on the surface and an back electrode on the backside, in between which layers of amorphous silicon (a-Si), microcrystalline silicon (μc-Si), and transparent conductive oxide (TCO) layers are sandwiched. Incident light through the glass surface is scattered at the interface between the TCO and the amorphous silicon. Visible light is absorbed by the amorphous silicon layer, and near-infrared light is absorbed by the microcrystalline silicon layer for generating electricity. By controlling the formation of concavo-convex shapes in TCO layers, we successfully increased the diffusion rate of both visible and near-infrared light, boosting power-generation efficiency of the microcrystalline silicon layer.

Sputtering is carried out in vacuum conditions. It is not only able to provide highly uniform thin-film coatings of high quality but also these films can also be built up in multiple layers. From transparent conductive films on glass substrates, through energy-efficient architectural and automotive glass coatings, to antireflective treatments that reduce glare, sputtering is applied to the products for a wide range of industrial applications.

Desired optical properties can be achieved by coating the substrate with multilayer films with the thickness close to the wavelengths of visible light.

Water-repellent glass has a surface on which fluorine materials are applied to create a coating that repels water drops. The larger the contact angle between the glass and a water drop, the higher the repellency of glass. When used for the side glass of automobiles, the glass ensures a clear view even in the rain, resulting in improved safety while driving.