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Materials 2010, 3(2), 943-998; doi:10.3390/ma3020943
Review

Porous Silicon—A Versatile Host Material

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Received: 31 October 2009; in revised form: 22 January 2010 / Accepted: 2 February 2010 / Published: 3 February 2010
(This article belongs to the Special Issue Porous Materials)
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Abstract: This work reviews the use of porous silicon (PS) as a nanomaterial which is extensively investigated and utilized for various applications, e.g., in the fields of optics, sensor technology and biomedicine. Furthermore the combination of PS with one or more materials which are also nanostructured due to their deposition within the porous matrix is discussed. Such nanocompounds offer a broad avenue of new and interesting properties depending on the kind of involved materials as well as on their morphology. The filling of the pores performed by electroless or electrochemical deposition is described, whereas different morphologies, reaching from micro- to macro pores are utilized as host material which can be self-organized or fabricated by prestructuring. For metal-deposition within the porous structures, both ferromagnetic and non-magnetic metals are used. Emphasis will be put on self-arranged mesoporous silicon, offering a quasi-regular pore arrangement, employed as template for filling with ferromagnetic metals. By varying the deposition parameters the precipitation of the metal structures within the pores can be tuned in geometry and spatial distribution leading to samples with desired magnetic properties. The correlation between morphology and magnetic behaviour of such semiconducting/magnetic systems will be determined. Porous silicon and its combination with a variety of filling materials leads to nanocomposites with specific physical properties caused by the nanometric size and give rise to a multiplicity of potential applications in spintronics, magnetic and magneto-optic devices, nutritional food additives as well as drug delivery.
Keywords: porous silicon; electrodeposition; nanostructures; nanoparticles porous silicon; electrodeposition; nanostructures; nanoparticles
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Granitzer, P.; Rumpf, K. Porous Silicon—A Versatile Host Material. Materials 2010, 3, 943-998.

AMA Style

Granitzer P, Rumpf K. Porous Silicon—A Versatile Host Material. Materials. 2010; 3(2):943-998.

Chicago/Turabian Style

Granitzer, Petra; Rumpf, Klemens. 2010. "Porous Silicon—A Versatile Host Material." Materials 3, no. 2: 943-998.


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