Regional Symposium on Innovation in science and technology

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Impact of geometrical imperfection on optical and thermal properties of nanowire based thermophotovoltaic absorbers

Authors :

Sayyed Reza Mirnaziry¹ Mohammad Danaeifar² Mohammad Ali Shameli³

1- دانشگاه قم 2- دانشگاه قم 3- دانشگاه صنعتی خواجه نصیرالدین طوسی

Keywords :

Absorber،Thermophotovoltaic،Nanowire،Tungsten

Abstract :

Nanowire based absorber in a solar thermophotovoltaics structure is studied to examine the effect of fabrication tolerances on optical and thermal response. The absorber in both ideal and imperfect configuration is composed of tungsten nanowire meta-atoms to achieve absorption through the solar spectrum. The imperfect nanowires are modelled as truncated pyramids with unit cell dimensions which provide remarkable absorption. The optical and thermal analysis of this geometrical change highlights the significance of precise fabrication in realizing appropriate absorber efficiency in nanophotonic TPV absorbers.

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