DESIGN AND ANALYSIS OF COLORED SOLAR SELECTIVE ABSORBING FILMS WITH THREE-LAYER STRUCTURE

Mingzhi Zheng, Yangwei Wu, Limei Lin, Weifeng Zheng, Yan Qu and Fachun Lai ()
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Mingzhi Zheng: School of Physics and Opto-Electronics Technology, Fujian Normal University, Fuzhou 350007, P. R. China
Yangwei Wu: School of Physics and Opto-Electronics Technology, Fujian Normal University, Fuzhou 350007, P. R. China
Limei Lin: School of Physics and Opto-Electronics Technology, Fujian Normal University, Fuzhou 350007, P. R. China
Weifeng Zheng: School of Physics and Opto-Electronics Technology, Fujian Normal University, Fuzhou 350007, P. R. China
Yan Qu: School of Physics and Opto-Electronics Technology, Fujian Normal University, Fuzhou 350007, P. R. China
Fachun Lai: School of Physics and Opto-Electronics Technology, Fujian Normal University, Fuzhou 350007, P. R. China

Surface Review and Letters (SRL), 2012, vol. 19, issue 05, 1-7

Abstract: Using glasses with 200-nmCufilms as substrates, the colored solar energy selective absorbing films with three-layer structure had been designed by optical multilayer design software. The three layers materials wereFedopedAlNandAlN. The optical constants ofFedopedAlNfilms with differentFevolume fractions were calculated by the effective medium theories. The color of the absorbing films includes orange yellow, purplish pink, pink, purple, and green. The solar absorptance of each colored film is between 0.89 and 0.96. The thermal emittance is lower than 0.1. The green film has the highest brightness. The purplish pink film has the highest absorptance, while the orange yellow and purple films have the lowest emittance. The color, absorptance, emittance, and brightness of the green film at different angles of light incidence had been analyzed. When the incident angle increases from 0° to 50°, the color of the green film changes from green to blue, and its absorptance and emittance decrease.

Keywords: Solar energy; colored selective absorbing films; three-layer structure; optical properties (search for similar items in EconPapers)
Date: 2012
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DOI: 10.1142/S0218625X12500461

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