Speaker
Description
We report on the fabrication and characterization of TiO2 nanoparticles immobilized in porous silicon (p-Si) structures; p-si was obtained by chemical anodization using crystalline silicon (c-Si) substrates with varying resistivity. This study used two types of TiO2 nanoparticle nanoparticles to compare their properties: one synthesized by hydrothermal process and the other commercial. Structural characterization was conducted using X-ray diffraction (XRD), and the results were corroborated by Raman spectroscopy. Morphological characterization was performed using scanning electron microscopy (SEM) to determine the porous distribution as well as the shape and size of the TiO2 nanoparticles. The optical properties of the porous silicon were analyzed using luminescence techniques. Time-resolved photoluminescence (TRPL) was employed to determine the average lifetime of the carriers involved in the recombination processes.
Reference
Tank, C. M., Sakhare, Y. S., Kanhe, N. S., Nawale, A. B., Das, A. K., 2011). Electric field enhanced photocatalytic properties of TiO2 nanoparticles
Gupta, T., Cho, J., (2021). Hydrothermal synthesis of TiO2 nanorods: formation chemistry, growth mechanism, and tailoring
This work was supported by
This work was partially supported by postdoctoral fellowship CONAHCYT and Instituto Politécnico Nacional (SIP-IPN Project Number 20240630 and 20241177 )
| Keywords | Nanoparticles, Titanium dioxide, nanostructure, porous silicon |
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| Author approval | I confirm |
| Author will attend | I confirm |
