Investigation of RuO[sub 2]-Incorporated Pt Layer as a Bottom Electrode and Diffusion Barrier for High Epsilon Capacitor Applications

Due to the development of various mobile electronic devices, such as electric vehicles, rechargeable ion batteries are becoming more and more important. However, the current commercial lithium-ion batteries have obvious defects, including poor safety from Li dendrite and flammable electrolyte, quick capacity loss and low charging and discharging rate. It is very important to find a better two-dimensional material as the anode of the battery to recover the disadvantages. In this paper, first principles calculations are used to explore the performances of VS2 bilayer and VS2 / graphene heterostructure as the anodes of Li ion batteries. Based on the calculation of the valences, binding energy, intercalation voltage, charge transfer and diffusion barrier of Li, it is found that the latter can be used as a better anode material from the perspective of insertion voltage and binding energy. At the same time, the former one is better in terms of diffusion barrier. Our study provides a comprehensive understanding on VS2 based 2D anodes.

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Growth mechanism and diffusion barrier property of plasma-enhanced atomic layer deposition Ti–Si–N thin films

Journal of Vacuum Science & Technology B Microelectronics and Nanometer Structures Processing Measurement and Phenomena ◽

10.1116/1.2198846 ◽

2006 ◽

Vol 24 (3) ◽

pp. 1327 ◽

Cited By ~ 16

Author(s):

Jin-Seong Park ◽

Sang-Won Kang ◽

H. Kim

Keyword(s):

Thin Films ◽

Atomic Layer Deposition ◽

Growth Mechanism ◽

Diffusion Barrier ◽

Atomic Layer ◽

Barrier Property ◽

Layer Deposition ◽

And Diffusion

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Formation energy and diffusion barrier of point defects in three uranium compounds as nuclear fuels

Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms ◽

10.1016/j.nimb.2018.07.039 ◽

2019 ◽

Vol 450 ◽

pp. 114-117

Author(s):

Qiang Zhao ◽

Zheng Zhang ◽

Xiaoping Ouyang

Keyword(s):

Point Defects ◽

Diffusion Barrier ◽

Formation Energy ◽

Nuclear Fuels ◽

Uranium Compounds ◽

And Diffusion

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PZT and Electrode Enhancements of Mems Based Micro Heat Engine for Power Generation

MRS Proceedings ◽

10.1557/proc-730-v5.19 ◽

2002 ◽

Vol 730 ◽

Author(s):

A.L. Olson ◽

L.M. Eakins ◽

B.W. Olson ◽

D.F. Bahr ◽

C.D. Richards ◽

...

Keyword(s):

Bottom Electrode ◽

Mechanical Energy ◽

Electrical Power ◽

Heat Engine ◽

Mems Devices ◽

Stress Concentrations ◽

Process Yield ◽

Micro Heat Engine ◽

Reducing Stress ◽

And Diffusion

AbstractThe P3 Micro Heat Engine relies on a thin film PZT based transducer to convert mechanical energy into usable electrical power. In an effort to increase process yield for these were used on sputtered Ti/Pt bottom electrodes to compare roughness, grain size, and diffusion for annealing temperatures between 550 and 700 °C. For an optimized bottom electrode, process yield for various sized top electrodes were then studied for PZT thickness between 0.54 and 1.62 for reducing stress concentrations. Two PZT etching geometries on 2.3 μm thick Si/SiO2 membranes, with 1.5-3.5 mm side-lengths, were examined and one was used to increase the strain at failure by at least 40%. Integrating improvements in process yield and strain at failure, single PZT based MEMS devices capable of generating power of up to 1 mW and in excess of 2 volts have been demonstrated operating at frequencies between 300 and 1,100 Hz.

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The potential respiratory surfaces of a fish living in a historically polluted river

Animal Biology ◽

10.1163/15707563-20191109 ◽

2020 ◽

Vol 70 (1) ◽

pp. 101-108

Author(s):

André Luis da Cruz ◽

Thiago Matos Prado ◽

Laísa Peixoto Ramos ◽

Wilfried Klein

Keyword(s):

Metabolic Activity ◽

Morphometric Analysis ◽

Diffusion Barrier ◽

Diffusion Distance ◽

Polluted River ◽

Atmospheric Air ◽

Gill Structure ◽

And Diffusion ◽

Cutaneous Respiration

Abstract The acquisition of oxygen is fundamental for maintaining metabolic activity in fish, and most species obtain oxygen through aquatic gill respiration. Throughout evolution, different fish lineages have evolved secondary routes to obtain oxygen from atmospheric air, and the spinycheek sleeper, Eleotris pisonis, may be one example of such bimodal respiration. Gill structure and the top epithelium of the head of E. pisonis from the Subaé River (Santo Amaro, Bahia, Brazil) were evaluated morphometrically. The gills showed histopathologies, especially proliferation, which was prevalent on 35.6% of the filaments and on 13.7% of the lamellae, probably increasing the water-blood diffusion barrier of the lamellae to 5.48 ± 1.32 μm, similar to the air-blood diffusion distance of the skin (5.77 ± 1.72 μm). Quantitative morphometric analysis of histopathologies and diffusion distances could be considered as biomarkers, and also suggest the presence of cutaneous respiration as a possible strategy for aerial oxygen acquisition.

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Supersaturation by counterperfusion and diffusion of gases

Journal of Applied Physiology ◽

10.1152/jappl.1977.42.5.758 ◽

1977 ◽

Vol 42 (5) ◽

pp. 758-760 ◽

Cited By ~ 4

Author(s):

B. A. Hills

Keyword(s):

Steady State ◽

Diffusion Barrier ◽

Decompression Sickness ◽

Bubble Formation ◽

Inert Gases ◽

And Diffusion ◽

Diffusion Of Gases

Gaseous supersaturation can be induced under steady-state conditions when two inert gases are transmitted in opposite directions across any system comprising a diffusion barrier adjacent to a zone of limited convective capacity. This has many implications for bubble formation in vivo and can explain the occurence of symptoms of decompression sickness without decompression.

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