Photoluminescence and Raman study of iron-passivated porous silicon

Photoluminescence enhancement and stabilisation of porous silicon passivated by iron

“…The high intensity and stable PL peak position are reported, also, by Mavi et al [24] where they have used a n-type Si sample. Remember that the sizes of porous layer obtained by n-type Si are in the range of mm.…”

Luminescent Properties of Porous Silicon

“…Silver atoms deposited inside PSi may also help in passivating the Si nanocrystals (Sun et al 2005;Lu et al 2006). Also, iron atoms incorporated into PSi have helped stabilized the PL, the exact mechanism remaining unclear (Chen et al 2001;Mavi et al 2003;Rahmani et al 2008Rahmani et al , 2012.…”

Correlation between optical properties surface morphology of porous silicon electrodeposited by Fe 3+ ion

“…However, the inefficiency and instability [8,9,10] of the optical properties of the PS create many problems in the application area such as the decrease of PL intensity [9,10] and the shift of the energy of maximum of PL band [9,10] due to the surface oxidation of PS crystallites. To solve this problem, new nano-composites lines have been developed by the insertion of atomic or molecular species such as hydrocarbons, polymers, semiconductors and transition metals [11][12][13][14][15]. Herino et al [16] investigated the deposition of metals and other conducting materials in relation to their influence on the luminescent properties of PS and to their modification of its conductivity.…”