• Atom Force Microscopy of SnO2 Nano Layers 

      Filevska, Liudmila M.; Smyntyna, Valentyn A.; Hrinevych, Viktor S. (2006)
      The gas sensitivity applied problems solutions need a consideration and detailed investigation of the material's electronic and ionic subsystems' behavior. These systems' behavior at their own turn is tightly connected ...
    • Binary oxides semiconductor transducers for H2S sensors 

      Smyntyna, Valentyn A.; Vashpanov Yu. A.; Hrinevych, Viktor S. (1997)
      The physical processes of semiconductor and heavy metals oxides sensors on H2S are investigated and possible physical mechanisms of gas sensitivity in the atmosphere of air and nitrogen are considered. Mechanism of ...
    • CdxS- and Snx WOy,-based gas sensors: the role of chemical composition in co sensing 

      Golovanov, V.; Smyntyna, Valentyn A.; Brinzari, V.; Korotcenkov, G. (Одеський національний університет імені І. І. Мечникова, 2001)
      Electronic structure of chemisorption complexes on surface of oxidic a-SnxWOy- and CdxS-based gas sensors with different elemental composition were comparatively studied by XPS, CEMS and combined with conductivity ...
    • Characterization of SnO2 Sensors Nanomaterials by Polarization Modulation Method 

      Hrinevych, Viktor S.; Filevska, Liudmila M.; Smyntyna, Valentyn A.; Stetsenko, Maksym O.; Rudenko, S. P.; Maksymenko, L. S.; Serdeha, B. K. (2016)
      The polarization characteristics for tin dioxide cluster films are studied by the method of modulation polarization spectroscopy. The galvanic conductivity presence in the films is the basis for registration in it the ...
    • Characterization of SnO2 Sensors Nanomaterials by Polarization Modulation Method 

      Hrinevych, Viktor S.; Filevska, Liudmila M.; Smyntyna, Valentyn A.; Stetsenko, Maksym O.; Rudenko, S. P.; Maksymenko, L. S. (2016-01)
      The polarization characteristics for tin dioxide cluster films are studied by the method of modulation polarization spectroscopy. The galvanic conductivity presence in the films is the basis for registration in it the ...
    • Classic and Topologic Dimensional Effects in SnO2 Thin Films Detected by Surface Plasmon Resonance Technique 

      Hrinevych, Viktor S.; Filevska, Liudmila M.; Maximenko, L. S.; Matiash, I. E.; Mischuk, O. N.; Rudenko, S. P.; Serdeha, B. K.; Smyntyna, Valentyn A. (SciTechnol, 2013)
      Internal reflection features caused by the surface plasmon resonance in nanoscale films containing defect tin dioxide clusters in the stoichiometric dielectric matrix are studied by means of polarization modulation of ...
    • CONDUCTIVITY MECHANISM IN THIN NANOCRYCTALLINE TIN OXIDE FILMS 

      Viter, Roman V.; Smyntyna, Valentyn A.; Konup, I. P.; Nitsuk, Yu. A.; Ivanitsa, Volodymyr A.; Витер, Роман Витальевич; Смынтына, Валентин Андреевич; Конуп, И. П.; Ницук, Ю. А.; Иваница, Владимир Алексеевич; Вітер, Роман Виталійович; Сминтина, Валентин Андрійович; Конуп, І. П.; Ніцук, Ю. А.; Іваниця, Володимир Олексійович (Астропринт, 2009)
      Structural properties of tin oxide nanocryastalline films have been investigated by means of atomic force microscopy (AFM) and X-ray diffraction (XRD) methods. Surface morphology, roughness, crystalline size and lattice ...
    • DEPENDENCE OF SPACE-CHARGE REGION CONDUCTIVITY OF NONIDEAL HETEROJUNCTION FROM 

      Borshchak, Vitalii A.; Kutalova, Mariia I.; Zatovska, Nataliia P.; Balaban, Andrii P.; Smyntyna, Valentyn A.; Борщак, Виталий Анатольевич; Куталова, Мария Ивановна; Затовская, Наталия Петровна; Балабан, Андрей Петрович; Смынтына, Валентин Андреевич; Борщак, Віталій Анатолійович; Куталова, Марія Іванівна; Затовська, Наталія Петрівна; Балабан, Андрій Петрович; Сминтина, Валентин Андрійович (Астропринт, 2009)
      It is shown that nonideal CdS-Cu2S heterojunction illumination results in essential space-charge region width reduction and change of a potential barrier form. It is established that this change is the most expressed near ...
    • DEPENDENCE OF SPACE-CHARGE REGION CONDUCTIVITY OF NONIDEAL HETEROJUNCTION FROM PHOTOEXCITATION CONDITIONS 

      Borshchak, Vitalii A.; Kutalova, Mariia I.; Zatovska, Nataliia P.; Balaban, Andrii P.; Smyntyna, Valentyn A.; Борщак, Виталий Анатольевич; Куталова, Мария Ивановна; Затовская, Наталия Петровна; Балабан, Андрей Петрович; Смынтына, Валентин Андреевич; Борщак, Віталій Анатолійович; Куталова, Марія Іванівна; Затовська, Наталія Петрівна; Балабан, Андрій Петрович; Сминтина, Валентин Андрійович (Астропринт, 2009)
      It is shown that nonideal CdS-Cu2S heterojunction illumination results in essential space-charge region width reduction and change of a potential barrier form. It is established that this change is the most expressed near ...
    • EFFECT OF PHOTOCURRENT SHORTWAVE STIMULATION AND DETERMINATION OF DIFFUSION LENGTH FOR MINORITY CARRIERS IN Cu2S 

      Smyntyna, Valentyn A.; Borshchak, Vitalii A.; Kutalova, Mariia I.; Zatovska, Nataliia P.; Balaban, Andrii P.; Смынтына, Валентин Андреевич; Борщак, Виталий Анатольевич; Куталова, Мария Ивановна; Затовская, Наталия Петровна; Балабан, Андрей Петрович; Сминтина, Валентин Андрійович; Борщак, Віталій Анатолійович; Куталова, Марія Іванівна; Затовська, Наталія Петрівна; Балабан, Андрій Петрович (Астропринт, 2007)
      The most important parameter that defines efficiency in carrier collection and, respectively, efficiency of photocon- verter, is diffusion length of minority carriers in material where basic light absorption ...
    • Enhancement of optical and mechanical properties of Si nanopillars by ALD TiO2 coating 

      Pavlenko, Mykola; Coy, E. L.; Jancelewicz, M.; Załe˛ski, K.; Smyntyna, Valentyn A.; Jurga, Stefan; Iatsunskyi, Igor (2016)
      The mechanical and optical properties of Si and TiO2–Si nanopillars (NPl) were investigated. Mesoporous silicon NPl arrays were fabricated by metal-assisted chemical etching and nanosphere lithography, and then pillars ...
    • EXTERNAL BIAS INFLUENCE ON TRANSMISSION PROCESSES IN NONIDEAL HETEROJUNCTION 

      Smyntyna, Valentyn A.; Borshchak, Vitalii A.; Kutalova, Mariia I.; Zatovska, Nataliia P.; Balaban, Andrii P.; Сминтина, Валентин Андрійович; Борщак, Виталий Анатольевич; Куталова, Марія Іванівна; Затовська, Наталія Петрівна; Балабан, Андрій Петрович; Смынтына, Валентин Андреевич; Борщак, Віталій Анатолійович; Куталова, Мария Ивановна; Затовская, Наталия Петровна; Балабан, Андрей Петрович (Астропринт, 2008)
      Optimum conditions for nonequilibrium positive charge accumulation and storages are determined. The maximal charge accumulation speed for a sample, which bas³ñ cadmium sulfide layer is obtained by liquid electrohydrodynamical ...
    • FORMATION OF -PHASE WO3 NANOSTRUCTURES FOR SENSOR APPLICATIONS. 

      Lappalainen, F.; Viter, Roman; Puustinen, J.; Gornostaev, D.; Smyntyna, Valentyn A.; Lydina, I.; Lantto, V.; Jantunen, H. (Одеський національний університет імені І І. Мечникова, 2010)
    • Heterogeneous systems with Ag nanoparticles 

      Smyntyna, Valentyn A.; Skobieieva, V. M.; Malushyn, M. V. (2016)
      In this paper we report on a study of the optical properties of the two hybrid nanosystems, which are composed of silver nanoparticles (Ag NPs) with methylene blue (MB) dye and Ag NP with CdS quantum dots (CdS QDs).
    • I-V characterization of tin oxide nanocrystalline films for optical fiber sensors 

      Viter, Roman; Smyntyna, Valentyn A.; Nitsuk, Yu.; Pisco, M.; Consales, M.; Campopiano, S.; Giordano, M.; Cusano, A.; Cutolo, A. (Астропринт, 2007)
      Tin oxide Sn02 is well known as material for gas sensors.Tin oxide is chemically stable for different aggressive chemical pollutants and doesn't change its structure under high temperatures [1].This good features let to ...
    • IMAGE SENSOR ON THE BASIS OF NONIDEAL HETEROJUNCTION WITH RIGID RASTER 

      Smyntyna, Valentyn A.; Borshchak, Vitalii A.; Kutalova, Mariia I.; Zatovska, Nataliia P.; Balaban, Andrii P.; Смынтына, Валентин Андреевич; Борщак, Виталий Анатольевич; Куталова, Мария Ивановна; Затовская, Наталия Петровна; Балабан, Андрей Петрович; Сминтина, Валентин Андрійович; Борщак, Віталій Анатолійович; Куталова, Марія Іванівна; Затовська, Наталія Петрівна; Балабан, Андрій Петрович (Астропринт, 2006)
      The basic requirement to modern solid-state optical image converters is strict geometrical conformity between target video signal and optical image elements. In the given work the design of image sensor on ...
    • INFLUENCE OF HUMIDITY ON THE LUMINESCENCE PROPERTIES OF CdS NANOCRYSTALLS 

      Smyntyna, Valentyn A.; Skobieieva, V. M.; Malushyn, M. V.; Pomogailo, A.D. (Астропринт, 2006)
      Features of semiconducting crystals which distributed in a polymeric matrix,are caused both their individual properties,and their interaction with a matrix.As nanocrystalls are characterized by the large surface-volume ...
    • Interaction SnO2 thin Film with Organic vapours in neutral Atmosphere 

      Viter, R.; Smyntyna, Valentyn A.; Baranovsky, I.; Yevtushenko, Nina H.; Kurkov, V.; Kravetz, E. (Одеський національний університет імені І. І. Мечникова, 2004)
      The influence of oxygen and organic vapors on S n0 2 thin films conductance has been studied in different conditions. Gas sensitivity for different vapors was researched under different temperatures. It was pointed that ...
    • Investigation in Temperature and Freouency Dependences for Conductivity in Barrier Region Of nonideal Heterojunction 

      Smyntyna, Valentyn A.; Borschak, Vitaliy A.; Kutalova, Mariia I.; Zatovska, Nataliia P.; Balaban, Andrii P. (Одеський національний університет імені І. І. Мечникова, 2005)
      The described experimental data indicate the tunnel-jumping character of carriers transport through space-charge region (SCR) of heterojunction CdS—Cu2S. The conductivity caused by this mechanism essentially depends on ...
    • INVESTIGATION IN TEMPERATURE AND FREQUENCY DEPENDENCES FOR CONDUCTIVITY IN BARRIER REGION OF NONIDEAL HETEROJUNCTION 

      Smyntyna, Valentyn A.; Borshchak, Vitalii A.; Kutalova, Mariia I.; Zatovska, Nataliia P.; Balaban, Andrii P. (Астрапринт, 2005)
      The described experimental data indicate the tunnel-jumping character of carriers transport through space-charge region (SCR) of heterojunction CdS—Cu2S.The conductivity caused by this mechanism essentially depends on the ...