Design of Multilayer Ring Emitter Based on Metamaterial for Thermophotovoltaic Applications
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Band Gap
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The objective of this study is to design a broadband and wide-angle emitter based on metamaterials with a cut-off wavelength of 2.1 µm to improve the spectral efficiency of thermophotovoltaic emitters. To obtain broadband emission, we conducted the geometric parameter optimization of the number of stacked layers, the inner and outer radii of the nano-rings, and the thickness of the nano-rings. The numerical simulation results showed that the proposed emitter had an average emissivity of 0.97 within the targeted wavelength, which ranged from 0.2 µm to 2.1 µm. In addition, the presented multilayer nano-ring emitter obtained 79.6% spectral efficiency with an InGaAs band gap of 0.6 eV at 1400 K.
2006 ◽
Vol 65
(16)
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pp. 1533-1546
2021 ◽
Vol 13
(2)
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pp. 168781402199811
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2014 ◽
Vol 496-500
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pp. 642-645
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2012 ◽
Vol 204-208
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pp. 4884-4887
2011 ◽
Vol 19
(03)
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pp. 177-183
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