Emission mechanism and wide-angle adaptability of selective emitter based on combination of one and two-dimensional photonic crystals
In this paper, a thermophotovoltaic (TPV) emitter that combines a one-dimensional photonic crystal with two-dimensional periodic nanoarray cavities was proposed. The Finite-Difference Time-Domain (FDTD) method was adopted to analyze the spectral emittance and its sensitivity to the emission angle fo...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-01-01
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| Series: | Frontiers in Energy Research |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2022.995782/full |
| _version_ | 1797960138984783872 |
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| author | Shaowen Cao Qilin Cai Qilin Cai Yingshi Zhang Qi Zhang Qing Ye Weifeng Deng Xi Wu |
| author_facet | Shaowen Cao Qilin Cai Qilin Cai Yingshi Zhang Qi Zhang Qing Ye Weifeng Deng Xi Wu |
| author_sort | Shaowen Cao |
| collection | DOAJ |
| description | In this paper, a thermophotovoltaic (TPV) emitter that combines a one-dimensional photonic crystal with two-dimensional periodic nanoarray cavities was proposed. The Finite-Difference Time-Domain (FDTD) method was adopted to analyze the spectral emittance and its sensitivity to the emission angle for the proposed emitter. The results show that the main emission mechanisms of the emitter are Cavity Resonances (CRs), Fabry-Perot (FP) resonances, and Magnetic polaritons (MPs). In the convertible band of a TPV cell, CRs and FP resonances are coupled together to broaden the emitting bandwidth of the emitter. The cut-off wavelength of structural spectral emittance increases with depth and radius but decreases with a period. In addition, the spectral emittance is non-sensitive to the emission angle of less than 50°, highlighting the wide-angle stability of the composite structure. The proposed emitter has wide-angle adaptability and achieves a fine-tunning of bandgap wavelength while maintaining a good spectral selectivity. This work provides new insight into the design of the TPV emitter. |
| first_indexed | 2024-04-11T00:41:43Z |
| format | Article |
| id | doaj.art-b25b3aeafc994daab421800001c5bc14 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-04-11T00:41:43Z |
| publishDate | 2023-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-b25b3aeafc994daab421800001c5bc142023-01-06T05:12:16ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2023-01-011010.3389/fenrg.2022.995782995782Emission mechanism and wide-angle adaptability of selective emitter based on combination of one and two-dimensional photonic crystalsShaowen Cao0Qilin Cai1Qilin Cai2Yingshi Zhang3Qi Zhang4Qing Ye5Weifeng Deng6Xi Wu7College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, ChinaCollege of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, ChinaSunleem Technology Incorporated Company, Suzhou, ChinaCollege of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, ChinaCollege of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, ChinaCollege of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, ChinaCollege of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, ChinaCollege of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, ChinaIn this paper, a thermophotovoltaic (TPV) emitter that combines a one-dimensional photonic crystal with two-dimensional periodic nanoarray cavities was proposed. The Finite-Difference Time-Domain (FDTD) method was adopted to analyze the spectral emittance and its sensitivity to the emission angle for the proposed emitter. The results show that the main emission mechanisms of the emitter are Cavity Resonances (CRs), Fabry-Perot (FP) resonances, and Magnetic polaritons (MPs). In the convertible band of a TPV cell, CRs and FP resonances are coupled together to broaden the emitting bandwidth of the emitter. The cut-off wavelength of structural spectral emittance increases with depth and radius but decreases with a period. In addition, the spectral emittance is non-sensitive to the emission angle of less than 50°, highlighting the wide-angle stability of the composite structure. The proposed emitter has wide-angle adaptability and achieves a fine-tunning of bandgap wavelength while maintaining a good spectral selectivity. This work provides new insight into the design of the TPV emitter.https://www.frontiersin.org/articles/10.3389/fenrg.2022.995782/fullthermophotovoltaic systemswavelength-selective emissionone-dimensional emitterstwo-dimensional emitterselectromagnetic resonance |
| spellingShingle | Shaowen Cao Qilin Cai Qilin Cai Yingshi Zhang Qi Zhang Qing Ye Weifeng Deng Xi Wu Emission mechanism and wide-angle adaptability of selective emitter based on combination of one and two-dimensional photonic crystals Frontiers in Energy Research thermophotovoltaic systems wavelength-selective emission one-dimensional emitters two-dimensional emitters electromagnetic resonance |
| title | Emission mechanism and wide-angle adaptability of selective emitter based on combination of one and two-dimensional photonic crystals |
| title_full | Emission mechanism and wide-angle adaptability of selective emitter based on combination of one and two-dimensional photonic crystals |
| title_fullStr | Emission mechanism and wide-angle adaptability of selective emitter based on combination of one and two-dimensional photonic crystals |
| title_full_unstemmed | Emission mechanism and wide-angle adaptability of selective emitter based on combination of one and two-dimensional photonic crystals |
| title_short | Emission mechanism and wide-angle adaptability of selective emitter based on combination of one and two-dimensional photonic crystals |
| title_sort | emission mechanism and wide angle adaptability of selective emitter based on combination of one and two dimensional photonic crystals |
| topic | thermophotovoltaic systems wavelength-selective emission one-dimensional emitters two-dimensional emitters electromagnetic resonance |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2022.995782/full |
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