The cover glass on solar modules provides protection for the underlying cells but also leads to two forms of power loss: reflection losses and soiling losses. In this work, we report design a broadband multilayer antireflection (MAR) coating designed use with silicon its advantages over commercial porous SiO <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www....

This article deals with improving the wear resistance of multilayer coatings as a fundamental problem in metal surface treatment, strengthening elements cutting tools, and ensuring reliability machine parts. It aims to evaluate depth for by mass loss distribution layers. The article’s primary purpose is develop mathematical method assessing value steel-based coatings. study material coating app...

Data of optical performance, thermal stability and ageing are given for solar selective coatings (SSC) based on a novel MoSi2-Si3N4 absorbing composite. SSC have been prepared as multilayer stacks formed by silver as metallic infrared reflector, a double layer composite and an antireflective layer (doi: 10.1016/j.solmat.2016.04.001 [1]). Spectroscopic reflectance data corresponding to the optic...

Planar waveguides of SiO2:TiO2 (multilayer structure) and SiO2:CeO2 (thick layer) were prepared onto commercial glass substrates using a sol-gel technique combined with dip-coating. These glassy coatings were structural characterised by Transmission Electron Microscopy (TEM) Energy Dispersive X-ray analysis and by Confocal Microscopy. Thicknesses of 1230 nm and 4,15 μm and refractive indices of...

An iterative correction process, recently incorporated into the National Research Council of Canada Fourier-transform thin-film synthesis program, is applied to the design of wideband antireflection coatings. This type of problem is different from those solved in the past by this method. It cannot be handled in a practical way without a correction process. We consider in detail the effects-crit...

Attempts to increase the gas temperature within gas turbine engines are driving the development of thermal barrier coatings that reduce superalloy component oxidation rates by disrupting thermal transport processes. Novel metal–ceramic multilayer’s combining thin metal layers with low thermal conductivity oxide ceramics offer a potential approach for impeding both the radiative and conductive t...

The optical constants of uranium (U) and amorphous silicon (a-Si) at 304 and 584 Å in the extreme ultraviolet (EUV) are a source of error in the design of multilayer optics. Measured reflectivities of multilayer mirror coatings do not agree with calculated reflectivities using existing optical constants. The optical properties of materials depend on the electronic structure of the atom or compo...

LLE Review, Volume 94 67 Introduction Large substrates for precision optical applications require the accurate, uniform deposition of multilayer thin-film coatings. Typically, this results in the use of electron-beam evaporation in a “box-coater” configuration, utilizing either simple or planetary rotation of the substrates. Simple rotation of the substrate minimizes the size of the necessary c...

The behavior of bi- and trilayer coating systems for flexible a-Si:H based solar cells consisting of a barrier, an electrode, and an absorption layer is studied under mechanical load. First, the film morphology, stress, Young's modulus, and crack onset strain (COS) were analyzed for single film coatings of various thickness on polyethylene terephthalate (PET) substrates. In order to demonstrate...

The thickness and the morphology of dip-coated single sol-gel layers is easily controlled by varying the sol compositions and the deposition parameters. A thorough study of the microstructure of transparent conducting ZnO:Al coatings deposited on fused silica substrates using X-ray diffraction, X-ray reflectometry and transmission electron microscopy cross-sections as well as of In2O3:Sn, SnO2:...