This study examined the surface microhardness of four kinds of resin composites with different fillers and resin matrices. Ten specimens of 2 mm thickness and 4 mm diameter of each resin composite were polymerized using a halogen light, a blue light-emitted diode, and a plasma arc unit. Microhardness evaluation was performed at top and bottom surfaces for each specimen using a Vickers microhard...

The crossing point current of forward I-V curves (IXing) at 25 and 125 C was measured and simulated for 4.5kV/320A silicon power P-i-N diode irradiated by electron, proton and combined electron-proton irradiation. The proton and electron irradiation are shown eto decrease the magnitude of IXing which is beneficial for paralleling of diodes under surge conditions. With increasing irradiation dos...

This paper presents a high-performance low-ringing ultra-wideband monocycle picosecond pulse generator, formed using a step recovery diode (SRD), simulated in ADS software and generated through experimentation. The pulse generator comprises three parts, a step recovery diode, a field-effect transistor and a Schottky diode, used to eliminate the positive and negative ringing of pulse. Simulated ...

This article reports the development of (a) vertical and (b) lateral diamond vacuum field emission devices with excellent field emission characteristics. These diamond field emission devices, diode and triode, were fabricated using a self-aligning gate formation technique from silicon-on-insulator wafers using conventional siliconmicropatterning and etching techniques. High emission current N0....

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We demonstrate multilevel data storage in organic ferroelectric resistive memory diodes consisting of a phase-separated blend of P(VDF-TrFE) and a semiconducting polymer. The dynamic behaviour of the organic ferroelectric memory diode can be described in terms of the inhomogeneous field mechanism (IFM) model where the ferroelectric components are regarded as an assembly of randomly distributed ...

A passive remote-sensing method is proposed for the measurementof the eleetric-field distribution within a biological sample. The instrument analyzes the intermodulation spectrum reradiated by a diode imbedded within the sample exposed to a dual-frequency illumination. Experimental results in a waveguidesystem indkate that the relative intensities of the intermodulation products are a unique fu...

Metal–insulator–metal diodes with Nb 2 O 5 and Ta 2 O 5 insulators deposited via atomic layer deposition are investigated. For both Nb 2 O 5 and Ta 2 O 5 , the dominant conduction process is established as Schottky emission at small biases and Frenkel–Poole emission at large biases. Fowler–Nordheim tunneling is not found to play a role in determining current versus voltage asymmetry. The dynami...

All opinions expressed herein are those of the authors and should not be reproduced, quoted in publications, transmitted, or used as a reference without the author's consent. The problem of cross-field plasma transport in the presence of stochastic magnetic fields has received considerable attention in the literature because of its importance in providing a potential explanation of the anomalou...