کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7937762 | 1513100 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimization of TiAlN/TiAlON/Si3N4 solar absorber coatings
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Optimization of TiAlN/TiAlON/Si3N4 solar absorber coatings Optimization of TiAlN/TiAlON/Si3N4 solar absorber coatings](/preview/png/7937762.png)
چکیده انگلیسی
A procedure to optimize a solar absorber coating stack with layers of TiAlN, TiAlON, and Si3N4, prepared using direct current magnetron sputtering on stainless steel with a Mo buffer layer, is presented. As input for this procedure the optical constants of individual layers of TiAlN, TiAlON, and Si3N4, deposited on Si substrates were obtained using spectroscopic ellipsometry and reflectance spectra for each material were calculated by the transfer matrix method using the obtained optical constants, showing good agreement with measured spectra. The optical constants were then used to design an optimized three-layer absorber coating by numerical simulations. Focused-Ion-Beam cross-sectioning showed that the individual layers of an actual fabricated three-layer absorber had a total thickness of 255Â nm (92Â nm of TiAlN, 78Â nm of TiAlON, and 85Â nm of Si3N4, for individual layers) with a 100-nm-thick Mo buffer layer. For this experimental geometry we found a solar absorptance and thermal emittance of 94.6% and 5.2% at 400Â K by analyzing the experimental reflectance spectrum of the whole stack.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy - Volume 118, August 2015, Pages 410-418
Journal: Solar Energy - Volume 118, August 2015, Pages 410-418
نویسندگان
Liqiong An, Syed Talat Ali, Thomas Søndergaard, Jeppe Nørgaard, Yao-Chung Tsao, Kjeld Pedersen,