Lei XU, Er-Tao HU, Hua-Tian TU, Wen-Shuai REN, Rong HE, Song-You WANG, Hai-Bin ZHAO, Rong-Jun ZHANG, Yu-Xiang ZHENG, Liang-Yao CHEN. Optimization and preparation of the high-efficiency solar selective absorber based on double W-SiO2 cermet layers[J]. Journal of Infrared and Millimeter Waves, 2021, 40(2): 150
- Journal of Infrared and Millimeter Waves
- Vol. 40, Issue 2, 150 (2021)
Fig. 1. Schematic of the solar absorber consisting of double W-SiO2-cermet layers
Fig. 2. Measured reflectance spectra of the thick W, Ni, Pt, Cu, and Cr films deposited onto the Si substrate.
Fig. 3. Experimental (symbol) and fitted (line) ellipsometry data Ψ (a) and Δ (b) of the composite films with varying deposition power of W as measured at the incident angle of 65°
Fig. 4. Refractive index n (a) and extinction coefficient k (b) of the W-SiO2 nanocomposite thin films with different deposition power of W
Fig. 5. Measured and calculated reflectance spectra of the solar selective absorber containing double W-SiO2 cermet layers with optimal structure parameters
Fig. 6. Measured spectra of the absorbance, reflectance and transmittance under the near normal-incidence condition in the wavelength region of 250∼1 500 nm
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Table 1. Growth parameters of the W-SiO2 double cermet solar selective absorber
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Table 2. Thermal emittance
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