Optimization and preparation of the high-efficiency solar selective absorber based on double W-SiO<sub>2</sub> cermet layers

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

doi:10.11972/j.issn.1001-9014.2021.02.002

Journal of Infrared and Millimeter Waves, Volume. 40, Issue 2, 150(2021)

Optimization and preparation of the high-efficiency solar selective absorber based on double W-SiO₂ cermet layers

Lei XU¹, Er-Tao HU², Hua-Tian TU¹, Wen-Shuai REN¹, Rong HE¹, Song-You WANG¹, Hai-Bin ZHAO¹, Rong-Jun ZHANG¹, Yu-Xiang ZHENG¹, and Liang-Yao CHEN^1、*

Author Affiliations

¹Department of Optical Science and Engineering，Fudan University，Shanghai 200433，China

²College of Electronic and Optical Engineering & College of Microelectronics，Nanjing University of Posts and Telecommunications，Nanjing 210023，China

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Fig. 1. Schematic of the solar absorber consisting of double W-SiO₂-cermet layers

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Fig. 2. Measured reflectance spectra of the thick W, Ni, Pt, Cu, and Cr films deposited onto the Si substrate.

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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°

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$Refractive index n (a) and extinction coefficient k (b) of the W-SiO2 nanocomposite thin films with different deposition power of W$

Fig. 4. Refractive index n (a) and extinction coefficient k (b) of the W-SiO₂ nanocomposite thin films with different deposition power of W

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Fig. 5. Measured and calculated reflectance spectra of the solar selective absorber containing double W-SiO₂ cermet layers with optimal structure parameters

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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-SiO₂double cermet solar selective absorber
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Table 1. Growth parameters of the W-SiO₂double cermet solar selective absorber
Layers
DC power
/W
RF power
/W
Thickness
/nm
Metal volume fraction
W 50 - 150 1
W-SiO₂（HMVF） 60 200 94 0.67
W-SiO₂（LMVF） 10 200 34 0.27
SiO₂ - 150 47 0

Table 2. Thermal emittance $ε (0, T)$ of the solar selective absorber based on the double-W-SiO₂-layered structure
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Table 2. Thermal emittance $ε (0, T)$ of the solar selective absorber based on the double-W-SiO₂-layered structure
T/K 300 400 500 600
$ε (0, T)$ 0.050 0.073 0.099 0.124

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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

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Paper Information

Category: Research Articles

Received: Apr. 24, 2020

Accepted: --

Published Online: Aug. 31, 2021

The Author Email: Liang-Yao CHEN (lychen@fudan.ac.cn)

DOI:10.11972/j.issn.1001-9014.2021.02.002

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Growth parameters of the W-SiO2 double cermet solar selective absorber

Table 1. Growth parameters of the W-SiO2 double cermet solar selective absorber

Table 2. Thermal emittance ε0,T of the solar selective absorber based on the double-W-SiO2-layered structure

Table 2. Thermal emittance ε0,T of the solar selective absorber based on the double-W-SiO2-layered structure

Table 1. Growth parameters of the W-SiO₂double cermet solar selective absorber

Table 1. Growth parameters of the W-SiO₂double cermet solar selective absorber

Table 2. Thermal emittance $ε (0, T)$ of the solar selective absorber based on the double-W-SiO₂-layered structure

Table 2. Thermal emittance $ε (0, T)$ of the solar selective absorber based on the double-W-SiO₂-layered structure