Using Oxide Materials for Improving Solar Collectors

In this paper we preparation and testing of the solar thermal collector using (chromium oxide, nickel oxide and copper oxide) coatings. This type of absorption is the most expensive way to prepare such absorption. The basic characteristics of the coating are prepared on the aluminum and copper substrates. To improve thermal compound properties. Optical properties were measured with the UV spectrum. While the emissivity of the surface is effective in energy emission and thermal radiation, so the results showed that when the concentration of each coated concentration increased from 0.1-0.3 (M), the increased emissivity of solar aggregation increased and the layers increased emissivity and improved solar energy. Collected`.