| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 79741 | Solar Energy Materials and Solar Cells | 2011 | 4 Pages |
A new solar selective coating was optimization designed in our paper. Ti0.5Al0.5N and Ti0.25Al0.75N coatings were chosen as absorber layers and AlN coating was chosen as anti-reflection layer. The phase structure and optical constants of these coatings were studied by X-ray diffraction and spectroscopic ellipsometry, respectively. The Ti0.5Al0.5N coating has a cubic NaCl-type structure and exhibits metallic character. However, the Ti0.25Al0.75N coating consists of cubic NaCl-type structure and hexagonal AlN structure and exhibits semiconducting property. AlN coating is expected as a dielectric layer. The solar selective coating was optimized using a computer program named TFCalc and verified by experimental results. The absorptance and low emittance of the optimized solar selective coating were 0.945 and 0.04 (82 °C), respectively.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights► We have built a new method to optimize solar selective coating using computer progress named “TFCalc”. ► The selective coating exhibits a high absorptance of 0.945 and low emittance of 0.04 (82 °C). ► Ti0.5Al0.5N coating exhibits metallic character and Ti0.25Al0.75N coating exhibits semiconducting property. AlN coating is expected as a dielectric layer.
