Multi-layered Thin-Film Metal Contacts for New Generation Solar Cells

Kruhlov, І. O.; Orlov, Anatolii; Закиев, В. И.; Закиев, И. М.; Prikhodko, Sergey V.; Voloshko, S. М.

doi:10.1007/978-3-030-92381-5_39

Cited by 5 publications

(1 citation statement)

References 19 publications

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“…Ideally, the solar cell electrode should demonstrate high transparency, low electrical resistance, chemical stability, and low surface roughness and provide all these at a reasonable cost [6]. Thus, intensive research to develop materials that meet these requirements is being carried out on carbon nanotubes [7], conductive polymers [8], metallic nanowires [9], metallic meshes [10], spintronic devices [11], etc. However, GR has the best chance of outperforming in such applications.…”

Section: Introductionmentioning

confidence: 99%

Effect of Graphene on Nickel Surface Relaxation: Molecular Dynamics Simulation

Konorev,

Yanchuk,

Kruhlov

et al. 2023

Lubricants

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The effect of graphene (GR) on Ni surface relaxation and reconstruction in three different substrate orientations, {111}, {001}, and {011}, at two different temperatures, 300 K and 400 K, was studied using molecular dynamics simulation. The change in the interplanar distances of the substrate and redistribution of Ni and C atoms in a direction perpendicular to the surface was compared with the equilibrium state of GR and bulk Ni, in the absence of the counterpart. The surface reconstruction for the GR/Ni system was analyzed based on the calculated radial pair distribution functions of Ni and C atoms. The surface roughness was visualized using 2D atomic distribution maps. The introduction of GR on the Ni surface in any crystallographic orientation decreases the maximum modification of interplanar spacing compared to the bulk by less than 1%. For the studied substrate orientations and temperatures, it was found that the most densely packed {111} orientation of the Ni base provides minimal changes in the structural parameters of both counterparts at 400 K. Additionally, the system formed by GR deposition on Ni {111} at 400 K is characterized by the least roughness.

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Section: Introductionmentioning

confidence: 99%

Effect of Graphene on Nickel Surface Relaxation: Molecular Dynamics Simulation

Konorev,

Yanchuk,

Kruhlov

et al. 2023

Lubricants

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Thermally-induced diffusion and structural phase transitions in Pt/Mn and Pt/Mn/Pt thin films

Voloshko,

Kruhlov,

Pedan

et al. 2024

Phys. Scr.

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We demonstrate the possibility of diffusion formation of the chemically ordered L10-MnPt phase through the vacuum annealing of Pt(24 nm)/Mn(20 nm) and Pt(12 nm)/Mn(20 nm)/Pt(12 nm) layered stacks at 400 °C for 30 min. For the bi-layered stack annealed at 400 °C, the effect of Pt atoms segregation at the film/substrate interface was detected, which remained after annealing even at higher temperatures (500 °С and 600 °С) and prevented the whole homogenization of the chemical composition through the film depth. In contrast, for the tri-layered stack annealed at 400 °C, the presence of the additional Pt bottom layer enabled to change the rate and mechanism of reactive diffusion, leading to homogeneous distribution of components and enhanced crystallinity of the ordered L10-MnPt phase compared to the bi-layered sample. An explanation of the obtained experimental data is provided based on the fundamentals of mass transfer theory and its quantitative parameters (e.g. activation energy and diffusion coefficients). 

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Thermal and Ion Treatment Effect on Nanoscale Thin Films Scratch Resistance

Yanchuk¹,

Kruhlov²,

Закиев³

et al. 2022

Metallofiz. Noveishie Tekhnol.

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In this study, a microtribological characteristics of Ni(25 nm)/Cu(25 nm)/ Cr(25 nm) three-layer thin films fabricated using DC magnetron sputtering are explored using progressive scratch test. Four various types of thin films are examined and compared: as-deposited film, film after low-energy Ar + ion irradiation, film annealed at 450°С for 15 minutes in vacuum, and film after ion irradiation followed by vacuum annealing. Scratch tests are supplemented by structural (XRD) and chemical (AES) experimental studies. As figured out, the sample after ion irradiation followed by annealing demonstrated the best microtribological and wear resistance characteristics among all studied films. The highest scratch resistance, smooth scratch shape, the lowest value of peak tangential force as well as the absence of side cracks and film delamination are revealed for the sample after irradiation followed by annealing. The likely reasons of this behaviour are discussed.

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Multi-layered Thin-Film Metal Contacts for New Generation Solar Cells

Cited by 5 publications

References 19 publications

Effect of Graphene on Nickel Surface Relaxation: Molecular Dynamics Simulation

Effect of Graphene on Nickel Surface Relaxation: Molecular Dynamics Simulation

Thermally-induced diffusion and structural phase transitions in Pt/Mn and Pt/Mn/Pt thin films

Thermal and Ion Treatment Effect on Nanoscale Thin Films Scratch Resistance

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