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Showing 1 to 4 of 4 for “"porous Si"”.
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Raman scattering in free standing porous Si films
In this thesis, Raman Scattering of free standing porous silicon on sapphire samples of controllably varying porosity is studied. The free standing, fully crystalline porous silicon films were prepared by electrochemical etching and the porous structure were lifted-off by a procedure based on …
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Characterization of Nano-Porous Si-Cu Composites to Enhance Lubricant Retention Impacting the Tribological Properties of Sliding Surfaces
… of their sliding components becomes an increasingly important issue. Friction and wear cause heat-related failures which lead to catastrophic damage to machinery. Evaporation of a lubricant's volatile constituents as well as lubricant migration leads not only to a reduction in lubricant …
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The preparation of porous microcolumn arrays of silicon, and post-ionization of neutral particles from DIOS-MS
Matrix-free desorption/ionization on porous silicon (DIOS) has been used in this work to detect low molecular weight compounds by mass spectrometry. Post-ionization of neutral particles is a promising alternative technique for improving parent ion yields, particularly if gaseous neutrals can be …
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Aluminum-induced crystallization of semiconductor thin films
… film materials of the semiconductors, such as silicon (Si), germanium (Ge) or their alloys, are turning into the most promising functional materials in the energy technology. However, the morphologies of these semiconductor thin films must be varied to be suitable for the different …