Serdobintsev Aleksey Aleksandrovich RussiaSaratovSaratov State University, 410012, Russia, Saratov, Astrakhanskaya street, 83alexas80@bk.ru Author's articles Application of Thin Film Structures Based on Amorphous Silicon for pH Measurements in Solutions Formation of Modified Materials in Flows of Low-temperature Plasma HETEROPHASE SEMICONDUCTORS UNDERACTION OF IRRADIATIONS