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Photoluminescence and Raman study of porous silicon synthesized by visible and infrared laser etching
Visible and infrared lasers have been used to photochemically fabricate photoluminescent porous silicon thin films on n-type silicon substrates. Photoluminescence measurements on porous silicon exhibit a two-peak structure ...
Surface reconstruction of silicon and polysilicon by Nd:YAG laser etching: SEM, Raman and PL studies
A comparative study of porous silicon (PS) fabricated by laser-induced etching on n-type crystalline-silicon and n-type polysilicon substrates is presented here under near resonance conditions by employing a Nd:YAG laser. ...
Raman, photoluminescence and optical absorption studies on nanocrystalline silicon
Raman, photoluminescence (PL) and optical absorption results on silicon nanocrystals in SiO2 matrices prepared by RF sputtering method are presented. The samples have varying Si/SiO2 compositional fraction and are annealed ...