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Title:
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Improving selective thermal emission properties of three-dimensional macroporous silicon through porosity tuning
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Author:
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Garin Escriva, Moises; Todorov Trifonov, Trifon; Rodríguez Martínez, Ángel; Alcubilla González, Ramón; Marquier, F.; Arnold, C.; Greffet, J.-J.
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. MNT - Grup de Recerca en Micro i Nanotecnologies |
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Abstract:
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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 threedimensional
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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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica
-Oxidation
-Photonic crystals
-Porosity
-Silicon
-elemental semiconductors
-oxidation
-Progressive porosity increase
-photonic band gap
-porosity
-porous semiconductors
-reflectivity
-silicon
-selective thermal emission properties
-three-dimensional macroporous silicon
-porosity tuning
-progressive porosity
-omnidirectional total reflection bandwidths
-angle-resolved reflectance
-thermal emission measurements
-Si
-Oxidació
-Fotònica
-Porositat
-Silici |
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Rights:
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Document type:
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Article |
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Published by:
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American Institute of Physics
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