Simulation of a multilayer planar capacitor

Vendik, O. G.; Nikol’skii, M. A.

doi:10.1134/1.1340895

Cited by 20 publications

(9 citation statements)

References 2 publications

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“…The change of the capacitance during deposition provides the resulting capacitive contribution of the molecular layer. The permittivity ε mol of the molecular layer can be evaluated using the planar capacitance model − where ε 0 is the vacuum permittivity, s represents the gap between the electrodes and h mol represents the thickness of the molecular layer. Because the gap between the electrodes is usually significantly larger than the thickness h mol of the molecular layer we can simplify the eq to …”

Section: Methodsmentioning

confidence: 99%

Controlled Engineering of Oxide Surfaces for Bioelectronics Applications Using Organic Mixed Monolayers

Markov

Wolf

Yuan

et al. 2017

ACS Appl. Mater. Interfaces

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Modifying the surfaces of oxides using self-assembled monolayers offers an exciting possibility to tailor their surface properties for various applications ranging from organic electronics to bioelectronics applications. The simultaneous use of different molecules in particular can extend this approach because the surface properties can be tuned via the ratio of the chosen molecules. This requires the composition and quality of the monolayers to be controlled on an organic level, that is, on the nanoscale. In this paper, we present a method of modifying the surface and surface properties of silicon oxide by growing self-assembled monolayers comprising various compositions of two different molecules, (3-aminopropyl)-triethoxysilane and (3-glycidyloxypropyl)-trimethoxysilane, by means of in situ controlled gas-phase deposition. The properties of the resulting mixed molecular monolayers (e.g., effective thickness, hydrophobicity, and surface potential) exhibit a perfect linear dependence on the composition of the molecular layer. Finally, coating the mixed layer with poly(l-lysine) proves that the density of proteins can be controlled by the composition as well. This indicates that the method might be an ideal way to optimize inorganic surfaces for bioelectronics applications.

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Section: Methodsmentioning

confidence: 99%

Controlled Engineering of Oxide Surfaces for Bioelectronics Applications Using Organic Mixed Monolayers

Markov

Wolf

Yuan

et al. 2017

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…The change of the capacitance during deposition provides the resulting capacitive contribution of the molecular layer. This contribution can be evaluated for planar capacitors according to − where ε 0 is the vacuum permittivity, ε mol and h mol represent the permittivity and thickness of the molecular layer, respectively, s represents the gap between the electrodes, and l represents the length of the electrodes. Since normally the gap s between the electrodes is significantly larger than the thickness h mol of the molecular layer, we can simplify eq to …”

Section: Methodsmentioning

confidence: 99%

In Situ Analysis of the Growth and Dielectric Properties of Organic Self-Assembled Monolayers: A Way To Tailor Organic Layers for Electronic Applications

Markov

Greben

Mayer

et al. 2016

ACS Appl. Mater. Interfaces

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Organic nanoscale science and technology relies on the control of phenomena occurring at the molecular level. This is of particular importance for the self-assembly of molecular monolayers (SAM) that can be used in various applications ranging from organic electronics to bioelectronic applications. However, the understanding of the elementary nanoscopic processes in molecular film growth is still in its infancy. Here, we developed a novel in situ and extremely sensitive detection method for the analysis of the electronic properties of molecular layer during molecular layer deposition. This low-frequency sensor (1 kHz) is employed to analyze the standard vapor deposition process of SAMs of molecules and, subsequently, it is used to optimize the growth process itself. By combining this method with an ex situ determination of the effective thickness of the resulting layers via ellipsometry, we observe a large difference of the permittivity (1 kHz) of the examined aminosilanes in the liquid state (εliquid = 5.5–8.8) and in SAMs (εSAM = 22–52, electric field in the plane of the layer). We ascribe this difference to either the different orientation and order of the molecules, the different density of molecules, or a combination of both effects. Our novel in situ analyses not only allows monitoring and optimizing the deposition of organic layers but also demonstrates the high potential of organic SAMs as organic high-k layers in electronic devices.

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“…Other dimensional parameters in Figure 2 are Px = 9.5 mm, Py = 17.6 mm, L1 = 8.7 mm, L2 = 8.4 mm, L3 = 1.7 mm, L4 = 1 mm, L5 = 1.7 mm, W1 = 3.7 mm, W2 = 2.4 mm, W3 = 1.9 mm, W4 = 3 mm, W5 = 0.4 mm, W6 = 1.9 mm, and H = 3 mm. The equivalent circuit model theory can be used to explain the operating mechanism of the proposed programmable element (Liang et al, 2021) (Vendik and Nikol, 2001). As shown in Figure 3, the element can be regarded as the load terminal when it is illuminated by a plane wave.…”

Section: The Design Procedures Of the Programmable Elementmentioning

confidence: 99%

Flexible Beam Manipulations by Reconfigurable Intelligent Surface With Independent Control of Amplitude and Phase

et al. 2022

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Reconfigurable intelligent surfaces (RISs) have attracted extensive attention in recent years due to their strong ability to improve and customize electromagnetic wave propagation channels in wireless communications. In this article, we propose a design procedure for an RIS and its programmable element, whose reflection phase and amplitude can be jointly controlled by adjusting the states of the varactor and PIN-diode. In addition, by introducing metallic vias in the RIS element, the programmable element can maintain the stable reflection amplitude and phase responses under the illumination of transverse magnetic (TM) wave with the incident angle of 0–60°. In order to verify the beam steering performance of the RIS, theoretical calculations and full-wave simulations of single beam and dual beams are carried out according to the addition theorem of the complex reflection coefficient. The amplitude- and phase-coding patterns on the RIS array are well designed so that the deflection angles and power intensities of the scattered beams can be manipulated independently.

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Simulation of a multilayer planar capacitor

Cited by 20 publications

References 2 publications

Controlled Engineering of Oxide Surfaces for Bioelectronics Applications Using Organic Mixed Monolayers

Controlled Engineering of Oxide Surfaces for Bioelectronics Applications Using Organic Mixed Monolayers

In Situ Analysis of the Growth and Dielectric Properties of Organic Self-Assembled Monolayers: A Way To Tailor Organic Layers for Electronic Applications

Flexible Beam Manipulations by Reconfigurable Intelligent Surface With Independent Control of Amplitude and Phase

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