Mahya Nangir
semiconductors, MERC
[ 1 ] - Investigating the Effect of Ultrasonification Time on Transition from Monolithic Porous Network to Size-Tunable Monodispersed Silica Nanosphere in Stöber Method
Uniform colloidal monodispersion of silica nanospheres were synthesized via Stöber method using ammonia as a basic catalyst. The effect of TEOS, EtOH, and H2O concentrations on the particle size and morphology were investigated. On the results, increasing in ultrasonication time as a new parameter from 12 to 45 min led to transition from monolithic porous network to homogenous nanospheres due to …
[ 2 ] - Optimization of the nanoporous silicon structures by magnesiothermic reduction of the as-synthesized silica
Nanoporous silicon powder was produced via efficient magnesiothermic reduction. In this work, the thermal effect and reduction process time were investigated on the porous silicon structure. The nanoporous silicon powders were characterized by X-ray diffraction analysis and field emission scanning electron microscopy. The results demonstrate that porous structure was changed to homogeneous and un…
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