期刊
CHINESE JOURNAL OF PHYSICS
卷 67, 期 -, 页码 124-134出版社
ELSEVIER
DOI: 10.1016/j.cjph.2020.06.004
关键词
Multilayer structure; Spectral filter; Photonic crystals; Transfer matrix method; Thermophotovoltaics
In this paper, two photonic crystal structures composed of Si/SiO2 and TiO2/SiO(2)are optimized and compared for potential use as thermophotovoltaic (TPV) optical filters. The performance of the proposed one-dimensional structures comprises eight periods each. The infrared radiation included is in the wavelength range of 300 nm to 900 nm for the visible and from 800 nm to 2000 nm for the infrared. The limiting temperature of the system is 2000 K. The transfer matrix method is used to analyze the behavior of the frequency for a structure comprising a layer of defects. This method permitted to observe the behavior of the peak of light transmission when the period and angle of incidence change. We have subsequently found that the band gaps of the Si/SiO(2)structure were wider than those of the TiO2/SiO(2)structure.
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