Direct current pulsed discharge is a promising route for producing high-density metastable particles required optically pumped rare gas lasers (OPRGLs). Such densities are easily realized in small volumes at near atmospheric pressures, but problems appear when one trying to achieve large volume of plasma high-power output. In this work, we examined the scalability argon atoms by segmented confi...

Bipolar degradation is a known problem in the development of SiC MOSFETs when body diodes (p+ body/ n-drift layer) are forward biased. Mostly higher voltage classes like 1.7 kV or 3.3 have been studied literature resulting with significant Rdson increase [1-2]. In this work, diode stress was conducted for 1.2kV MOSFETs, which were mapped Infra-Red photoluminescence (IR-PL) to determine and loca...

Metal halide perovskites have shown rapid development in various fields such as photovoltaics, photodetectors, light-emitting diodes (LEDs), and optically pumped lasers owing to their superior optoelectronic properties. Here, we review the basic properties of from a photophysical perspective. We highlight that are promising devices functioning at wide range carrier densities. discuss electrical...

Movement of nutrients across ecosystem boundaries can have important effects on food webs and population dynamics. An example from the North Pacific Rim is the connection between productive marine ecosystems and freshwaters driven by annual spawning migrations of Pacific salmon (Oncorhynchus spp). While a growing body of research has highlighted the importance of both pulsed nutrient subsidies ...

We have recently initiated an investigation of electron emission from ferroelectric cathodes. our experimental apparatus consisted of an electron diode and a 250 kV, 12 ohm, 70 ns pulsed high voltage power source. A planar triode modulator driven by a synthesized waveform generator initiates the polarization inversion and allows inversion pulse tailoring. Our initial measurements indicate that ...

YBa2Cu3O7 d thin films were processed by pulsed laser deposition on (1 0 0) LaAlO3 substrates using O2 partial pressures from 120 to 1200 mTorr. The effect of O2 pressure on film properties including room temperature resistivities and microstructures was studied for a unique set of deposition parameters. The film quality was observed to remain high over a wide range of O2 partial pressures, wit...

Effects of temperature on electrical parameters of polysilicon solar cells, fabricated using the phosphorous spin-on diffusion technique, have been studied. The current density–voltagecharacteristics of polycrystalline silicon solar cells were measured in dark at different temperaturelevels. For this purpose, a diode equivalent model was used to obtain saturation current densi...

A novel Ag50Cu50 film electrocatalyst for oxygen reduction reaction (ORR) was prepared by pulsed laser deposition (PLD) method. The electrocatalyst actually is Ag-Cu alloyed nanoparticles embedded in amorphous Cu film, based on transmission electron microscopy (TEM) characterization. The rotating disk electrode (RDE) measurements provide evidence that the ORR proceed via a four-electron pathway...