“…Silicon nanoinclusions surrounded with a silicon dioxide (SiO 2 ) layer lar, the generalized theory was developed for chemical sensors on the basis of surface-barrier structures with an intermediate layer of thin porous semiconductors and nano-catalysts [20,21]. The influence of nanoparticles of noble metals on the electric properties of nano-porous silicon was studied [22,23]. New types of effective chemical sensors were developed for detecting hydrogen, moisture, hydrogen-carbon compounds, heavy metals, and organic media, in which the luminescent or electric transducers on the basis of surface-barrier structures from porous silicon, titanium oxide, graphene, and other nanosubstances were applied [24][25][26][27].…”