Abstract
Impact of a Bright Nickel Interlayer on the Performance of Solar Absorber Nano Coatings Deposited by Electroplating on Copper Substrate
Highlights
Due to the increasing demand for energy, the need for alternative clean energy sources with the least emission of dioxide has increase; sun is one of the main sources of energy at all, In order to convert this thermal energy into useful energy, selective coatings are emerging as an important industrial application [1,2]
There are many techniques and methods for producing selective coatings including paint, chemical vapor deposition (CVD), Sol-Gel, Spray coating, and physical vapor deposition(PVD), Electroplating is a simple and attractive option due to its reproducibility and excellent control over the morphology and thickness of the coatings it low cost and short deposition times[3,4,6] Bright nickel is an attractive, low-cost solar absorber material the coatings got with this electrolyte and similar formulations for chemical conversion baths showed good optical properties [7,8,9]
Chemical Analysis of the Substrate Alloys The chemical composition of the copper substrate alloy has been analyzed with spectrophotometer at the condition of temperature with 20 ̊C and the humidity of 62%the chemical analysis was carried out using by using optical emission spectrometer (OES) type (Foundry-Master x pert) S.N 52Q0089 German manufacturing The results of the analysis have been illustrated in Tables 1, which include the actual measured and standers values, while Figure 3 shows the microstructure of copper under an optical microscope
Summary
Due to the increasing demand for energy, the need for alternative clean energy sources with the least emission of dioxide has increase; sun is one of the main sources of energy at all, In order to convert this thermal energy into useful energy, selective coatings are emerging as an important industrial application [1,2]. Copper is an attractive substrate material for selective coatings related to its good thermal conductivity, stability and its high reflectance (low emittance) in the near IR. The electroplating of bright nickel working as an interlayer between the copper substrate and copper nanoparticles (CuNP) selective absorber and the effect of this layer on optical and thermal properties have been implemented. This nickel layer coating is slightly lower thermal absorption and emissivity than copper nanoparticles coated onto copper directly. The comparing of the optical and thermal properties of between nanocoatings directly deposited onto the copper substrates and copper nanoparticles coated with the presence of bright nickel have been investigated in this research
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