Numerical Study of High Spectral Efficiency and High-Temperature Energy Harvesting Metamaterial Emitter to Improve Thermophotovoltaic Performance

Table 2

Comparisons between the designed emitter and other emitters at room temperature.

	Materials		Geometry	Emissivity	Range of wavelength
	Metal	Dielectric
Wang et al. [21]	W, Ti	MF2	Pyramid	0.925	500-2200 nm
Song et al. [25]	W	SiO2	2D rectangular	0.801	200-2200 nm
Maremi et al. [23]	W	AlN	Multilayer Ring	0.938	200-2200 nm
Jiang et al. [24]	W	Al2O3	Multilayer ring	0.943	500-2200 nm
Abdel-Latif et al. [7]	W	SiO2	2D cylindrical gear	0.853	300-2200 nm
Present study	W	AlN	Pyramid	0.964	100-2200 nm