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  • Ескіз
    Документ
    Development and new application of single-crystal silicon solar cells
    (2011) Khrypunov, G. S.; Kopach, V. R.; Kirichenko, M. V.; Zaitsev, R. V.
  • Ескіз
    Документ
    Flexible thermoelectric module based on zinc oxide thin film grown via SILAR
    (2021) Klochko, N. P.; Klepikova, K. S.; Khrypunova, I. V.; Zhadan, D. O.; Petrushenko, S. I.; Kopach, V. R.; Dukarov, S. V.; Sukhov, V. M.; Kirichenko, M. V.; Khrypunova, A. L.
    In this work, we used the low temperature solution growth Successive Ionic Layer Adsorption and Reaction (SILAR) for a deposition of the nanostructured undoped and indium doped (ZnO and ZnO:In) thin films on flexible polyimide (PI) substrates for their use as cheap non-toxic thermoelectric materials in the flexible thermoelectric modules of planar type to power up portable and wearable electronics and miniature devices. The use of a zincate solution in the SILAR method allows to obtain ZnO:In film, which after post-growth annealing at 300 ◦C has low resistivity ρ ≈ 0.02 Ω m, and high Seebeck coefficient 147 μV/K and thermoelectric power factor at near-room temperatures. As evidence of the operability of the manufactured films as the basis of the TE device, we have designed and tested experimental lightweight thin-film thermoelectric module. This TE module is able to produce specific output power 0.8 μW/m2 at ΔT = 50 K.
  • Ескіз
    Документ
    Electronic Parameters of a New Thin Film Composition for Kesterite Solar Cell
    (Прикарпатський національний університет імені Василя Стефаника, 2017) Klochko, N. P.; Khrypunov, G. S.; Kopach, V. R.; Lukianova, O. V.; Lyubov, V. M.; Kirichenko, M. V.
  • Ескіз
    Документ
    Nanostructured Semiconductor Heterostructures for Ultraviolet Sensors, Solar Cells and Semitransparent Diodes Manufactured by Chemical and Electrochemical Methods
    (Прикарпатський національний університет імені Василя Стефаника, 2017) Klochko, N. P.; Khrypunov, G. S.; Kopach, V. R.; Klepikova, K. S.; Lukianova, O. V.; Korsun, V. E.; Lyubov, V. M.; Zaitsev, R. V.; Kirichenko, M. V.
  • Ескіз
    Документ
    Near Ultraviolet Photodetector Based on Electrodeposited in Pulse Mode Zinc Oxide Arrays
    (Institute of Electrical and Electronics Engineers, 2016) Klepikova, K. S.; Klochko, N. P.; Kopach, V. R.; Khrypunov, G. S.; Lubov, V. M.; Zaitsev, R. V.; Kirichenko, M. V.
  • Ескіз
    Документ
    Investigation the parameters of multijunction single crystal silicon solar cells with vertical diode cells test samples
    (Institute for Radiophysics and Electronics of the National academy of sciences of Ukraine, 2014) Polezhaeva, O. V.; Zaitsev, R. V.; Kopach, V. R.; Kirichenko, M. V.
  • Ескіз
    Документ
    Attestation of solar cells by back EMF method
    (Institute for Radiophysics and Electronics of the National academy of sciences of Ukraine, 2014) Lobatenko, D. D.; Kirichenko, M. V.; Zaitsev, R. V.; Kopach, V. R.
  • Ескіз
    Документ
    Double-layer ITO/Al back surface reflector for single-junction silicon photoconverters
    (Scientific and Technological Corporation "Institute for Single Crystals", 2008) Kopach, V. R.; Kirichenko, M. V.; Shramko, S. V.; Zaitsev, R. V.
    It has been shown that to increase the efficiency and manufacturability of single-crystal silicon photovoltaic solar energy converters (Si-PVC) with 180-200 μm thick base crystals having a polished photoreceiving surface and double-layer back surface reflector (BSR) consisting of a transparent oxide and aluminum layers, a conductive transparent indium-tin oxide (ITO) layer of 0.25 μm interference thickness is to be used as the nonmetallic BSR layer. It provides the ITO/Al BSR reflection coefficient in the range of 85 < R < 96 % for solar radiation photoactive component incident the Si-PVC back surface at substantially zero contribution of ITO layer resistance to the device series resistance. In the case of Si-PVC with inverted pyramid type texture of crystal photoreceiving surface at which the specificity of light distribution in the crystal causes total reflection of radiation from Si/ITO interface, the ITO layer thickness should be experimentally optimized in the 1-2 μm range independently of base crystal thickness to minimize the photoactive radiation losses and ITO layer resistance.
  • Ескіз
    Документ
    New approach to the efficiency increase problem for multi-junction silicon photovoltaic converters with vertical diode cells
    (Scientific and Technological Corporation "Institute for Single Crystals", 2008) Kopach, V. R.; Kirichenko, M. V.; Shramko, S. V.; Zaitsev, R. V.; Bondarenko, S. A.
    It is shown, that for efficiency increase of multi-junction photovoltaic solar energy converters with vertical diode cells (VDC) on the basis of single-crystal silicon the modernization of VDC by the introduction along their vertical Si-boundaries single-layer indiumtin oxide reflectors by thickness more than 1 μm is necessary.
  • Ескіз
    Документ
    Back surface reflector optimization for thin single crystalline silicon solar cells
    (Scientific and Technological Corporation "Institute for Single Crystals", 2007) Kopach, V. R.; Kirichenko, M. V.; Shramko, S. V.; Zaitsev, R. V.; Tymchuk, I. T.; Antonova, V. A.; Listratenko, A. M.
    It has been shown that for single crystalline silicon solar cells (Si-SC) with 180-200 μm thick base crystals, the optimum back surface reflector (BSR) is TiO₂/Al with 0.18 μm thick oxide layer. At such BSR, the reflection coefficient for photoelectric active sunlight reaching the back surface of Si-SC at 0.88-1.11 μm wavelengths attains 81 to 92 % against of 71 to 87 % at direct Al contact with back surface of silicon base crystal.