Article ID Journal Published Year Pages File Type
5348731 Applied Surface Science 2015 6 Pages PDF
Abstract
Photoluminescence (PL) of monocrystalline silicon irradiated by femtosecond laser pulses was studied. The visible blue luminescence is observed both from the deionized water and air. The position and shape of emission luminescence peaks in the visible range are same at 330 nm. The PL is confirmed to be not merely induced by the oxygen defects or quantum confinement effects, but is commonly decided by the concentration distribution of SiOx and the depth of the surface microstructure. The PL gets strongest only when depth of the surface microstructure is not deeper and the distribution of the shallow SiOx is more intensive.
Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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