Porous silicon surface modification

Table 3 Different ways of porous silicon surface modifications before metal contact formation ...

MAGNETIC-FIELD-INDUCED MODIFICATION OF POROUS SILICON SURFACE AND PHOTOLUMINESCENCE... 

Song JH, Sailor MJ (1999) Chemical modification of crystalline porous silicon surfaces. Comment Inorg Chem 21 69-84... 

Low SP, Williams KA, Canham LT, Voelcker NH (2006) Evaluation of mammalian cell adhesion on surface-modified porous silicon. Biomaterials 27 4538 Makara VA, Klyui NI, Rozhin AG, Litovchenko VG, Piryatinskii YP, Kometa OB (2003) Porous silicon photoluminescence modification by surface treatments and impregnation of carbon based nanoclusters. Phys Status Solidi A-Appl Res 197 355 Makila E, Bimbo LM, Kaasalainen M, Herranz B, Airaksinen AJ, Heinonen M, Kukk E, Hirvonen J, Santos HA, Salonen J (2012) Amine modification of thermally carbonized porous silicon with silane coupling. Langmuir 28 14045... 

The radical-based functionalization of silicon surfaces is a growing area because of the potential practical applications. Although further knowledge is needed, the scope, limitations, and mechanism of these reachons are sufficiently well understood that they can be used predictably and reliably in the modification of hydrogen-terminated silicon surfaces. The radical chemistry of (TMSlsSiH has frequently served as a model in reactions of both hydrogen-terminated porous and flat silicon surfaces. We trust that the survey presented here will serve as a platform to expand silicon radical chemistry with new and exciting discoveries. 

R. C. Anderson, R. S. Muller, and C. W. Tobias, Chemical surface modification of porous silicon, J. 

Gurtner C, Wun AW, Sailor MJ (1999) Surface modification of porous silicon by electrochemical reduction of organo halides. Angew Chem hit Ed 38 1966-1967... 

Porous silicon (PS) is one of the nanoscale modifications of silicon. There are various approaches to PS producing that are now in use. The technique most generally employed today is known as wet anodization of a crystalline silicon. With this technique, yield parameters of porous material (porosity, pore size and shape, interpore distance) may be readily varied by anodization regimes. However, it is well known the problem of the PS stability influencing the physical properties of the PS layers. P S instability is c onditioned b y very large specific surface area of the porous material. 

A number of studies has been attempted to stabilize porous silicon low-temperature oxidation in a controlled way [1-3], surface modification of silicon nanocrystallites by chemical [4] or electrochemical [5] procedures etc. Rapid thermal processing (RTP) is thought to be a shortcut method of the PS stabilization for a number of purposes. However, there is no data about RTP influence on the PS structure. Therefore, the study of lattice deformations of PS layers after RTP is of great interest. In the present work. X-ray double-crystal diffractometry was used to measure lattice deformations of PS after RTP of millisecond and second durations. 

Keywords Porous Silicon / Silanes / Surface Modification / Vibrational Spectroscopy... 

Table 2 List of cells cultured on porous silicon with dififerent surface modifications and a summary of the findings of ...

In conclusion, porous silicon can support the growth and proliferation of cells, but this can be modulated through the use of various surface modification techniques. Pore dimensions also play a crucial role in cell attachment and differentiation, and individual cell types show different responses to surface features. Gradients of pore sizes and surface chemistries can help assess the optimal pore dimensions and surface feature to achieve a certain cell behavior. Finally, researchers studying cell viability on porous silicon should pay careful attention to possible interferences from the porous silicon substrate. 

Gurtner C, Wun AW, Sailor MJ (1999) Surface modification of porous silicon by electrochemical reduction of organo halides. Angew Chem Int Ed 38 1966-1968 Hamadache F, Duvail JL, Scheuren V, Piraux L, Poleunis C, Bertrand P, Belkaid MS (2002) Electrodeposition of Fe-Co alloys into nanoporous p-type silicon influence of the electrolyte composition. J Mater Res 17 1074-1084... 

Linsmeier J, Wust K, Schenk H, Hilpert U, Ossau W, Fricke J, Arens-Fischer R (1997) Chemical surface modification of porous silicon with tetraethoxysilane. Thin Solid Films 297 26-30 Mason MD, Sirbuly DJ, Buratto SK (2002) Correlation between bulk morphology and luminescence in porous silicon investigated by pore collapse resulting from drying. Thin Solid Films 406 151-158... 

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