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Luminescence and Raman scattering experiments have been performed on different types of porous silicon (PS) samples as a function of hydrostatic pressure. These measurements allow one to compare the response of the material in different structural phases, and show that under moderate conditions of pressurization the strong PS luminescence still exists in samples which have undergone the diamond to...
The luminescence and Raman spectra of porous silicon have been studied at room temperature as a function of hydrostatic pressure up to 15 GPa. The luminescence is still observed in the high pressure metallic phase, showing that it is not related to the diamond phase of silicon and therefore not originating from quantum size effects.
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