Efficient solar photocatalytic activity of TiO2 coated nano-porous silicon by atomic layer deposition

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Authors	SAMPATH Sridhar MAYDANNIK Philipp IVANOVA Tatiana SHESTAKOVA Marina HOMOLA Tomáš BRYUKVIN Anton SILLANPÄÄ Mika NAGUMOTHU Rameshbabu ALAGAN Viswanathan
Year of publication	2016
Type	Article in Periodical
Magazine / Source	Superlattices and Microstructures
MU Faculty or unit	Faculty of Science
Citation
Web	http://www.sciencedirect.com/science/article/pii/S0749603616302567
Doi	http://dx.doi.org/10.1016/j.spmi.2016.06.004
Field	Plasma physics
Keywords	Porous silicon;TiO2;Stain etching;ALD;Layer by layer solar absorption
Description	In the present study, TiO2 coated nano-porous silicon (TiO2/PS) was prepared by atomic layer deposition (ALD) whereas porous silicon was prepared by stain etching method for efficient solar photocatalytic activity. TiO2/PS was characterized by FESEM, AFM, XRD, XPS and DRS UV–vis spectrophotometer. Absorbance spectrum revealed that TiO2/PS absorbs complete solar light with wave length range of 300 nm–800 nm and most importantly, it absorbs stronger visible light than UV light.
Related projects:	CEPLANT - Regionální VaV centrum pro nízkonákladové plazmové a nanotechnologické povrchové úpravy Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy