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Performance analysis of three-body near-field thermophotovoltaic systems with an intermediate modulator
Journal of Quantitative Spectroscopy and Radiative Transfer ( IF 2.3 ) Pub Date : 2020-10-17 , DOI: 10.1016/j.jqsrt.2020.107395
F.R. Chen , G. An , Z.G. Xu

Near-field thermophotovoltaic devices are attractive energy conversion systems. In the present study, three-body near-field thermophotovoltaic systems are designed by introducing an intermediate modulator between thermal emitters and photovoltaic cells. The slab/grating emitter and modulator are made from Ga-doped ZnO, while the slab/grating cell is made from gallium antimonide. The scattering matrix method is used to calculate the radiative exchange between the emitter and the cell. The performances of three-body systems of slab-slab-slab/slab-slab-grating/ grating-grating-grating are investigated. The numerical results show that the output power of the three-slab system is significantly higher than that of the corresponding two-slab system. The output power improvement is attributed to the introduction of the modulator which enables the plasmon polaritons at two GZO surfaces to be coupled. The one-dimensional grating on the surface of the photovoltaic cell can serve as an anti-reflection pattern and improve the conversion efficiency and output power of the three-body system. Grating emitters and modulators can support hyperbolic modes and enhance the radiative heat flux of the whole system. The results prove that the three-body system can provide the possibility to improve the performance of a near-field thermophotovoltaic device.



中文翻译:

具有中间调制器的三体近场热光电系统的性能分析

近场热光电装置是有吸引力的能量转换系统。在本研究中,通过在热发射器和光伏电池之间引入中间调制器来设计三体近场热光伏系统。平板/光栅发射极和调制器由掺杂Ga的ZnO制成,而平板/光栅单元由锑化镓制成。散射矩阵法用于计算发射器与电池之间的辐射交换。研究了平板-平板-平板/平板-光栅-光栅-光栅-光栅三体系统的性能。数值结果表明,三板系统的输出功率明显高于相应的两板系统。输出功率的提高归因于调制器的引入,该调制器使两个GZO表面上的等离激元极化子耦合。光伏电池表面上的一维光栅可以用作抗反射图案,并可以提高三体系统的转换效率和输出功率。光栅发射器和调制器可以支持双曲模式并增强整个系统的辐射热通量。结果证明,三体系统可以提供改善近场热光电装置性能的可能性。光栅发射器和调制器可以支持双曲模式并增强整个系统的辐射热通量。结果证明,三体系统可以提供改善近场热光电装置性能的可能性。光栅发射器和调制器可以支持双曲模式并增强整个系统的辐射热通量。结果证明,三体系统可以提供改善近场热光电装置性能的可能性。

更新日期:2020-10-17
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