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Article Dans Une Revue Applied Physics Letters Année : 2008

Improving selective thermal emission properties of three dimensional macroporous silicon through porosity tuning

Moises Garin
  • Fonction : Auteur
T. Trifonov
A. Rodriguez
  • Fonction : Auteur
R. Alcubilla
  • Fonction : Auteur
C. Arnold
  • Fonction : Auteur
Jean-Jacques Greffet

Résumé

We present a theoretical and experimental study on the effect of progressive porosity increase, through multiple oxidation/oxide removal steps, upon the optical characteristics in three-dimensional macroporous silicon. It is shown that, by increasing porosity, optical features can be pushed toward higher frequencies. Optimum porosities exist where normal or omnidirectional total reflection bandwidths are maximized, doubling the initial values. Results are confirmed experimentally through angle-resolved reflectance and thermal emission measurements.
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Dates et versions

hal-00323251 , version 1 (19-09-2008)

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Moises Garin, T. Trifonov, A. Rodriguez, R. Alcubilla, François Marquier, et al.. Improving selective thermal emission properties of three dimensional macroporous silicon through porosity tuning. Applied Physics Letters, 2008, 93, pp.081913. ⟨10.1063/1.2976144⟩. ⟨hal-00323251⟩
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