Development of a New Coulter Counter System: Measurement of the Volume, Internal Conductivity, and Dielectric Breakdown Voltage of a Single Guard Cell Protoplast of Vicia Faba and Tumor Cells

The silicon carbide (SiC) material is being spotlighted as a next-generation power semiconductor material due to the characteristic limitations of the existing silicon materials. SiC has a wider band gap, higher breakdown voltage, higher thermal conductivity, and higher saturation electron mobility than Si. However, actual SiC SBDs exhibit a lower dielectric breakdown voltage than the theoretical breakdown voltage that causes the electric field concentration, a phenomenon that occurs on the edge of the contact surface as in the conventional power semiconductor devices. In this paper, we designed an edge termination structure using a field plate structure through oxide etch angle control, and optimized the structure to obtain a high breakdown voltage. The experiment results indicated that oxide etch angle was 45° when the breakdown voltage characteristics of the SiC SBD were optimized and a breakdown voltage of 681V was obtained.

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Dielectric Breakdown Voltage

Encyclopedic Dictionary of Polymers ◽

10.1007/978-1-4419-6247-8_3581 ◽

2011 ◽

pp. 213-213

Author(s):

Jan W. Gooch

Keyword(s):

Breakdown Voltage ◽

Dielectric Breakdown

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Blue light-dependent proton extrusion by guard-cell protoplasts of Vicia faba

Nature ◽

10.1038/319324a0 ◽

1986 ◽

Vol 319 (6051) ◽

pp. 324-326 ◽

Cited By ~ 173

Author(s):

K. Shimazaki ◽

M. Iino ◽

E. Zeiger

Keyword(s):

Vicia Faba ◽

Blue Light ◽

Guard Cell ◽

Proton Extrusion ◽

Guard Cell Protoplasts

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Streamer evolution arrest governed amplified AC breakdown strength of graphene and CNT colloids

The European Physical Journal Applied Physics ◽

10.1051/epjap/2019180360 ◽

2019 ◽

Vol 85 (3) ◽

pp. 30402 ◽

Cited By ~ 1

Author(s):

Purbarun Dhar ◽

Ankur Chattopadhyay ◽

Lakshmi Sirisha Maganti ◽

Anilakkad Raman Harikrishnan

Keyword(s):

Mathematical Model ◽

Carbon Nanotubes ◽

Breakdown Voltage ◽

Dielectric Breakdown ◽

Breakdown Strength ◽

Effective Electron ◽

Dielectric Breakdown Strength ◽

Mineral Oils ◽

Two Parameter ◽

Fundamental Mechanism

The present paper explores the concept of improving the AC dielectric breakdown strength of insulating mineral oils by the addition of graphene or carbon nanotubes (CNTs) to form stable dispersions. Experimental observations of graphene and CNT nano-oils show that not only improved average breakdown voltage, but also significantly improved reliability and survival probabilities of the oils under AC high voltage stressing is achieved. Improvement of the tune of ∼70–80% in the AC breakdown voltage of the oils has been obtained. The study examines the reliability of such nano-colloids using a two-parameter Weibull distribution and the oils show greatly augmented electric field bearing capacity. The fundamental mechanism responsible for such observed outcomes is reasoned to be delayed streamer development and reduced streamer growth rates due to effective electron scavenging. A mathematical model based on the principles of electron scavenging is proposed to quantify the amount of electrons scavenged by the nanostructures.

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Polarity Effect and Dielectric Breakdown of Composite Ferroelectric Films as the Dielectric for Electrowetting Systems

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.281.598 ◽

2018 ◽

Vol 281 ◽

pp. 598-603 ◽

Cited By ~ 1

Author(s):

Wei Qiang Wang ◽

Yan Su

Keyword(s):

Thin Film ◽

Electrical Properties ◽

Breakdown Voltage ◽

Dielectric Breakdown ◽

Ferroelectric Thin Film ◽

Ferroelectric Film ◽

Ferroelectric Films ◽

Dc Voltage ◽

Voltage Polarity ◽

Voltage Frequency

In this paper, we study the electrical properties and breakdown phenomena of BaTiO3/Teflon composite ferroelectric thin film in electrowetting systems. The experimental results showed that the electrowetting effect and the breakdown voltage depend on DC voltage polarity, and this polarity dependence is closely related to the thickness of the ferroelectric film. Under AC voltages, the breakdown voltage increased directly with voltage frequency. These results are useful for designing reliable EWOD devices with low operation voltages and high robustness.

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Preparation of Rolled Epidermis of Vicia Faba L. So That Stomata are the Only Viable Cells: Analysis of Guard Cell Potassium by Flame Photometry

Australian Journal of Biological Sciences ◽

10.1071/bi9730309 ◽

1973 ◽

Vol 26 (2) ◽

pp. 309 ◽

Cited By ~ 23

Author(s):

WG Allaway ◽

TC Hsiao

Keyword(s):

Vicia Faba ◽

Guard Cell ◽

Guard Cells ◽

Flame Photometry ◽

Viable Cells ◽

Rolling Technique ◽

Vicia Faba L

A rolling technique is described with which cells in epidermal strips of V. faba were differentially broken so that only guard cells remained alive and functional. In rolled epidermis potassium was retained only in live guard cells, as judged by staining with cobaltinitrite.

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