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Tungsten black absorber for solar light with wide angular operation range
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10.1063/1.2936997
/content/aip/journal/apl/92/21/10.1063/1.2936997
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/21/10.1063/1.2936997

Figures

Image of FIG. 1.
FIG. 1.

(a) Real and imaginary parts of relative permittivity for tungsten. The circles represent experimental data from Ref. 8. The lines were fitted using the complex-conjugate pole-residue pairs with parameters given in Table I. (b) Absorptivity at normal incidence of semi-infinite tungsten slab.

Image of FIG. 2.
FIG. 2.

(a) Illustration of the tungsten pyramid structure with nine unit cells showing. (b) Simulated absorptivity for various polar angles of incidence. (c) Simulated absorptivity for and various azimuthal angles. In both (b) and (c), the gray curve is the AM1.5 solar irradiance spectrum.

Image of FIG. 3.
FIG. 3.

Simulated absorptivity for normal incidence , for a structure with period and with varying pyramid heights. The gray curve is the AM1.5 solar irradiance spectrum

Image of FIG. 4.
FIG. 4.

Simulated absorptivity at normal incidence , for a structure with pyramid height of , and varying periods. The gray curve is the AM1.5 solar irradiance spectrum.

Tables

Generic image for table
Table I.

Parameters for a fit of tungsten’s relative permittivity with complex-conjugate pole-residue pairs.

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/content/aip/journal/apl/92/21/10.1063/1.2936997
2008-05-29
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Tungsten black absorber for solar light with wide angular operation range
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/21/10.1063/1.2936997
10.1063/1.2936997
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