Semiconductor Physics, Quantum Electronics & Optoelectronics, 28 (3), P. 277–283 (2025).
DOI: https://doi.org/10.15407/spqeo28.03.277

Potential barrier in a two-layer porous structure based on ZrO₂ and Ca₆H₂O₁₉Si₆, depending on filling of the pores with electrolyte (H₂O)

Yu.Yu. Bacherikov^1,2*, O.B. Okhrimenko^1*, A.Z. Sadygov^3,4, F.I. Ahmadov^3,4,5, A.G. Zhuk¹, Z.V. Maksimenko¹, V.V. Ponomarenko¹, I.A. Danilenko⁶, А.I. Lyubchyk⁷, S.I. Lyubchyk<sup>7

1</sup>V. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 41 Nauky Avenue, 03028 Kyiv, Ukraine
²V. Vernadsky Institute of General and Inorganic Chemistry, NAS of Ukraine, 32/34 Academician Palladin Avenue, 03142 Kyiv, Ukraine
³Institute of Radiation Problems, Ministry of Science and Education, B.Vahabzade Street 9, AZ 1143 Baku, Azerbaijan
⁴Department of Nuclear Research of IDDA, Baku Shamakhy HW 20 km, Gobusett. of Absheron District, AZ 0100 Baku, Azerbaijan
⁵Azerbaijan University of Architecture and Construction, Ayna Sultanova Street 5, Baku AZ 1073, Azerbaijan
⁶O. Galkin Donetsk Institute for Physics and Engineering, NAS of Ukraine, 46 Nauky Avenue, 03028 Kyiv, Ukraine
⁷DeepTechLab, RCM2+. Universidade Lusfona, Campo Grande, 376, Lisboa 1749-024, Portugal
*Corresponding author e-mail: Yuyu@isp.kiev.ua, olga@isp.kiev.ua

Abstract. In this paper, current-voltage characteristics of a two-phase disperse system Ca₆H₂O₁₉Si₆ + ZrO₂ as functions of filling of the pores with electrolyte (H₂O) have been investigated. It has been shown that presence of free water in the pores of the Ca₆H₂O₁₉Si₆ + ZrO₂ structure maximizes the current through this structure as well as induces blurring of the potential barrier in it due to the appearance of charge carriers (mobile ions), capable of moving through the entire two-layer disperse system, in the free water layer. Outflow of the free water leads not only to the disappearance of an additional channel for free movement of mobile ions through the entire structure, but also to an increase in the ion concentration in the diffuse layer. As a result, the efficiency of the potential barrier at the boundary between the layers of the structure as a rectifying element increases.

Keywords: disperse system, potential barrier, double electric layer, diffuse layer, potential determining layer, interface, Ca₆H₂O₁₉Si₆ + ZrO₂, porous structure.